CN116706580A - Multi-channel radio frequency connector based on FPC - Google Patents
Multi-channel radio frequency connector based on FPC Download PDFInfo
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- CN116706580A CN116706580A CN202310967329.4A CN202310967329A CN116706580A CN 116706580 A CN116706580 A CN 116706580A CN 202310967329 A CN202310967329 A CN 202310967329A CN 116706580 A CN116706580 A CN 116706580A
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- radio frequency
- fpc
- frequency signal
- flat cable
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- 238000002955 isolation Methods 0.000 claims description 15
- 230000008054 signal transmission Effects 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 7
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- 229910001369 Brass Inorganic materials 0.000 description 2
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
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- 229920006267 polyester film Polymers 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001275 Niobium-titanium Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The present disclosure provides a multichannel radio frequency connector based on FPC, characterized by comprising: the FPC flexible flat cable comprises a plurality of paths of radio frequency signal paths; the metal structural part is provided with a plurality of radio frequency signal through holes, and a radio frequency signal spring needle is fixedly supported in each radio frequency signal through hole through an insulator; a plurality of grounding spring pins are uniformly arranged around each radio frequency signal through hole; the radio frequency signal spring needle and the grounding spring needle are configured to be elastically connected to the opposite-end connecting component and/or the FPC flexible flat cable, so that radio frequency signals are transmitted through the radio frequency signal spring needle.
Description
Technical Field
The disclosure relates to the technical field of communication and radio frequency connectors, in particular to a high-density FPC multichannel radio frequency connector.
Background
The FPC (Flexible Printed Circuit, flexible circuit) is a flexible printed circuit board with high reliability and excellent properties, which is made of Polyimide (PI) or polyester film as a base material, and is generally used for transmitting high-speed, digital signals or voltage and current signals. When inputting and outputting to the outside, the connector is matched with the connector for use, so that the purpose of signal transmission is achieved. The FPC multichannel connector on the market is mainly designed for high-speed signals and is not suitable for radio frequency signal transmission scenes. The rf connector is mostly a coaxial structure, and its main electrical characteristics include characteristic impedance, standing wave ratio VSWR, insertion loss, rf leakage, frequency of use, and the like. The current FPC connector on the market cannot meet the requirements of the related characteristics of the radio frequency connector, so that the radio frequency signal transmission function cannot be realized.
In theory, in some scenarios, the rf connector for PCB stiffener may also be used for FPC stiffener. Chinese patent application No. 202011263889.4 discloses a PCB-end multi-channel rf connector that forms a high-density multi-channel rf connector assembly by multi-channel integration of a single coaxial connector.
The scheme is still a matched use scheme of the male-female head of the traditional radio frequency connector, the height after plugging is high, the density of the connector is constrained by the structure and the process capability, the standard interface size of the connector is difficult to break through, and more extremely high-density scenes, such as scenes with the center-to-center distance of the connector smaller than 2mm or smaller, cannot be realized; in addition, the male and female have certain plug force when inserting, and the multiple number of plug force increases when the multiunit is integrated to be used, causes installation, plug difficulty, and atress damage easily.
Disclosure of Invention
Based on the above problems, the present disclosure provides a multi-channel rf connector based on FPC to alleviate the above technical problems in the prior art.
Technical scheme (one)
The present disclosure provides a multi-channel radio frequency connector based on FPC, comprising: the FPC flexible flat cable comprises a plurality of paths of radio frequency signal paths; the metal structural part is provided with a plurality of radio frequency signal through holes, and a radio frequency signal spring needle is fixedly supported in each radio frequency signal through hole through an insulator; a plurality of grounding spring pins are uniformly arranged around each radio frequency signal through hole; the radio frequency signal spring needle and the grounding spring needle are configured to be elastically connected to the opposite-end connecting component and/or the FPC flexible flat cable, so that radio frequency signals are transmitted through the radio frequency signal spring needle.
According to the embodiment of the disclosure, the types of the radio frequency signal spring needle and the grounding spring needle comprise a split double-head spring needle, a split single-head spring needle and an integrated elastic spring needle.
According to the embodiment of the disclosure, the tip positions of the probes of the radio frequency signal spring pins and/or the ground spring pins extend out of the metal structural part to be connected with the opposite-end connecting part and/or the FPC flexible flat cable.
According to the embodiment of the disclosure, each radio frequency signal through hole is coaxially arranged with an insulator and a radio frequency signal spring needle which are arranged in the radio frequency signal through hole.
According to the embodiment of the disclosure, the FPC flexible flat cable comprises three metal film layers and two dielectric substrate layers respectively clamped between the three metal film layers, and the tail end of the FPC flexible flat cable is provided with a golden finger.
According to the embodiment of the disclosure, the metal film layers on the upper and lower surface layers of the flexible flat cable of the FPC are metal grounds, and the middle metal film layer is a radio frequency signal transmission layer and is provided with a plurality of paths of radio frequency signal paths.
According to the embodiment of the disclosure, the metallized via hole arrays are distributed between adjacent radio frequency signal paths at equal intervals and used for shielding signals between the adjacent radio frequency signal paths.
According to the embodiment of the disclosure, the FPC flexible flat cable is connected to the mounting surface of the opposite-end connecting component in parallel through the radio frequency signal spring pins and the grounding spring pins, or the FPC flexible flat cable is vertically connected to the mounting surface of the opposite-end connecting component through the radio frequency signal spring pins and the grounding spring pins.
According to an embodiment of the disclosure, the FPC-based multichannel radio frequency connector further includes a metal shield cover disposed on the gold fingers and the metal structural members of the FPC flexible flat cable and configured to have shield isolation ribs for signal isolation between adjacent radio frequency signal channels of the FPC gold fingers.
According to embodiments of the present disclosure, the FPC-based multichannel radio frequency connector further includes locating pins and fastening structures configured for locating and connecting the metallic structural members with the opposite connection members and/or the FPC flexible flat cables.
(II) advantageous effects
As can be seen from the above technical solutions, the FPC-based multichannel radio frequency connector of the present disclosure has at least one or a part of the following advantages:
(1) The problem that the flexible flat cable of the FPC is used for transmitting the butt joint of the lower connector of the multichannel radio frequency signals is solved, and a solution of the FPC radio frequency connector is provided;
(2) The connector adopts a 50 ohm coaxial structure for direct butt joint, a traditional male-female head standard interface butt joint mode is canceled, and more extremely miniaturized and high-density design is easy to realize;
(3) The elastic contact mode of the spring needle is adopted, repeated pluggable butt joint is realized, and the problems of difficult installation and disassembly and easy stress damage caused by overlarge plugging force during the butt joint of the multi-channel male and female heads are avoided;
(4) The high isolation characteristic of the FPC radio frequency connector is doubly ensured from the isolation design between FPC flexible flat cable channels to the shielding design at the joint.
Drawings
Fig. 1 is a schematic diagram of a docking scenario of an FPC-based multichannel radio frequency connector according to an embodiment of the present disclosure;
fig. 2a is a schematic end-face structure of a metal structural member of an FPC-based multichannel radio frequency connector according to an embodiment of the present disclosure;
FIG. 2b is a schematic side view of a metal structural member of an FPC-based multi-channel RF connector according to an embodiment of the present disclosure;
FIG. 2c is a schematic cross-sectional view of the metallic structural member of the FPC-based multichannel RF connector of the embodiments of the present disclosure taken along A' -A; '
Fig. 3 is a schematic diagram of a docking scenario of an FPC-based multichannel radio frequency connector according to another embodiment of the present disclosure;
fig. 4a is a schematic top view of a metal structural member of an FPC-based multi-channel rf connector according to another embodiment of this disclosure;
fig. 4b is a front structural view of a metal shield cover of an FPC-based multichannel radio frequency connector according to another embodiment of the present disclosure;
fig. 4c is a schematic view of a back side structure of a metal shielding cover of an FPC-based multichannel radio frequency connector according to another embodiment of the present disclosure;
fig. 4d is a schematic end-face structure of a metal structural member of an FPC-based multichannel radio frequency connector according to another embodiment of this disclosure;
FIG. 4e is a schematic cross-sectional view of a metal structural member of an FPC-based multichannel RF connector according to another embodiment of the present disclosure, taken along B' -B;
FIG. 5a is a schematic view of pin contacts of a RF signal pin and a ground pin on a butt connection of the disclosed embodiments;
FIG. 5b is a schematic side view of the spring pin contact of FIG. 5 a;
FIG. 6a is a schematic top view of a flexible flat cable of the FPC in accordance with an embodiment of the present disclosure;
FIG. 6b is a schematic cross-sectional structural view of an FPC flexible wire according to an embodiment of the present disclosure;
FIG. 6c is a schematic top view of a flexible flat cable of the FPC in accordance with another embodiment of the present disclosure;
FIG. 6d is a schematic cross-sectional view of a flexible flat cable of an FPC in accordance with another embodiment of the present disclosure;
FIG. 7a is a schematic diagram of a split double-ended probe according to an embodiment of the present disclosure;
FIG. 7b is a schematic diagram of a split single-ended probe according to an embodiment of the disclosure;
fig. 7c is a schematic structural view of an integrated elastic latch according to an embodiment of the present disclosure.
[ in the drawings, the main reference numerals of the embodiments of the present disclosure ]
1-FPC flexible flat cable; 2-a metal structural member; 3-an opposite end connection member; 4-radio frequency signal spring needle; 5-grounding spring pins; 6-an insulator; 7-a metal shield cover; 701-shielding isolation ribs; 8-locating pins; 801 locating pin holes; 9-fastening screw holes; 10-a metal film layer; 11-a dielectric substrate layer; 12-metallizing the via hole; 13-radio frequency signal contacts; 14-ground contacts; 15-indium bumps; 16-double-ended spring needle; 17-single-head spring needle; 18-an integral elastic member; 19-miniature springs; 20-probe.
Detailed Description
The utility model provides a multichannel radio frequency connector based on FPC, mainly used improves the radio frequency signal connection problem of the flexible winding displacement of FPC, especially the multichannel radio frequency signal connection problem based on FPC under the high density condition.
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.
In an embodiment of the present disclosure, there is provided an FPC-based multi-channel rf connector, as shown in fig. 1, 3, 2a to 2c, 4a to 4e, 5a to 5b, 6a to 6d, and 7a to 7c, including:
the FPC flexible flat cable 1 comprises a plurality of paths of radio frequency signal paths; and
the metal structural part 2 is provided with a plurality of radio frequency signal through holes, and a radio frequency signal spring needle 4 is supported and fixed in each radio frequency signal through hole through an insulator 6; a plurality of grounding spring pins 5 are uniformly arranged around each radio frequency signal through hole;
the rf signal pins 4 and the ground pins 5 are configured to be elastically connected to the opposite-end connection part 3 and/or the FPC flexible flat cable 1, so as to realize transmission of rf signals through the rf signal pins 4.
According to the embodiment of the disclosure, the dielectric substrate layer 11 of the FPC flexible flat cable may be a Polyimide (PI) film, a polyester film, or the like. The metal film layer 10 of the FPC flexible flat cable can be a conventional brass film and can be a beryllium copper, constantan, manganese copper and other metal film layers with low heat conductivity coefficients, so that low heat leakage performance is realized; the metal film layer of the FPC flexible flat cable can also be a superconducting metal film layer, such as a niobium film, a niobium-titanium film and the like, so that the characteristics of ultralow heat leakage and ultralow loss are realized, and the FPC flexible flat cable is very suitable for signal reading circuits.
According to the embodiment of the present disclosure, as shown in fig. 2c and 4e, each rf signal through hole of the metal structural member 2 is coaxially arranged with an insulator 6 and an rf signal spring pin 4 disposed in the rf signal through hole, and is designed to have a standard characteristic impedance of 50 ohms. The grounding spring pin 5 is assembled directly in contact with the metal structural part 2 without an insulator. The grounding pins 5 are uniformly distributed around the radio frequency signal pins 4 and used for signal isolation and shielding among channels. To increase signal density, adjacent channel intermediate positions may share a ground pin 5.
According to the disclosed embodiment, as shown in fig. 7 a-7 c, the types of rf signal pins 4 and ground pins 5 include split double-ended pins 16, split single-ended pins 17, and integral elastic pins 18 (i.e., no discontinuities inside the pins). A micro spring 19 is arranged in a shell or a groove of the main body of the split double-ended spring needle 16, and two ends of the micro spring 19 are respectively connected with a probe 20, so that the probes 20 can be elastically connected to the micro spring 19. The tip of the probe 20 may have a different configuration depending on the actual application. A micro spring 19 is arranged in a shell or a groove of the main body of the split single-head spring needle 17, and one end of the micro spring 19 is connected with a probe 20, so that the probe 20 can be elastically connected to the micro spring 19. The other end of the shell or the groove of the main body is blocked. The middle part of the integrated elastic spring needle 18 is provided with a spring structure, and two ends of the spring structure are provided with probes 20. So that the probes 20 at both ends can be elastically connected to the opposite end connection member 3 and/or the FPC flexible flat cable 1. The miniature spring and the integrated elastic piece can be replaced by a button or other elastic pieces; the probes at the two ends of the spring needle are provided with sharp corner characteristics, so that more stable and reliable contact force can be provided during elastic contact. The spring needle can be made of beryllium copper, and has the excellent characteristics of high strength and elasticity, wear resistance, fatigue resistance, stress relaxation resistance and the like.
According to the embodiment of the disclosure, the tip positions of the probes 20 of the radio frequency signal spring pins 4 and/or the ground spring pins 5 extend out of the metal structural part to be connected with the opposite end connecting part 2 and/or the flexible flat cable 1 of the FPC.
According to the embodiment of the disclosure, as shown in fig. 1 and 2 a-2 c, the flexible flat cable of the FPC is connected to the mounting surface of the opposite-end connecting component in parallel through the radio frequency signal spring pins and the grounding spring pins, namely, 180 degrees of flexible flat cable of the FPC is parallel to the mounting surface of the opposite-end connecting component; the pin array formed by the rf signal pins and the ground pins assembled on the metal structural member 2 is perpendicular to the two mounting surfaces and is simultaneously in elastic contact with the contacts on the two mounting surfaces, for example, the probe 20 at one end is in elastic contact with the rf signal contact 13 and the ground contact 14 on the mounting surface of the opposite-end connecting member 3, and the probe 20 at the other end is elastically connected or welded to the FPC flexible flat cable. At this time, the metal structural member 2 is located between the opposite end connecting member 3 and the two mounting surfaces of the FPC flexible flat cable 1, like a sandwich structure. The metal structural member 2, the flexible flat cable 1 of the FPC and the opposite-end connection member 3 are assembled and fixed together by means of fasteners such as screws. The assembly process requires precise positioning structural characteristics, so that precise alignment under the condition of high density is ensured. The fine positioning pin can be made on the metal structural member, and the FPC flexible flat cable 1 and the opposite end connecting component 3 are provided with pin holes and screw hole features at corresponding positions.
Or as shown in fig. 3 and fig. 4 a-4 d, the flexible flat cable of the FPC is vertically connected to the mounting surface of the opposite-end connecting component through the radio frequency signal spring pins and the grounding spring pins, namely, the flexible flat cable of the FPC is 90 degrees vertical to the opposite-end mounting surface. At this time, one end of the radio frequency signal spring pin 4 is welded to the golden finger of the FPC flexible flat cable, and the other end is elastically contacted with the radio frequency signal contact 13 on the mounting surface of the opposite end connecting part 3 to be connected. The grounding pin need only extend out of one end, for example, a split single-ended pin 17 is selected, and the probe 20 of the split single-ended pin 17 is in elastic contact with the grounding contact 14. At this time, the metal structural member 2 is further provided with a metal shielding cover 7, and the metal structural member 2 is divided into two parts as a whole, so that the FPC flexible flat cable 1 is sandwiched between the metal structural member 2 and the metal shielding cover 7. The metal shielding cover 7 is provided with shielding isolation ribs 701 at equal intervals, and the shielding isolation ribs are used for isolating signals between adjacent channels of FPC golden fingers. The flexible flat cable 1, the metal structural member and the metal shielding cover are assembled together through screw fastening or are assembled together through welding, so that the FPC radio-frequency connector assembly is formed. The assembly process requires precise positioning structural characteristics, so that precise alignment under the condition of high density is ensured. The locating pins are preferably made on the metal structural member, and screw holes and locating pin holes are formed in corresponding positions on the FPC flexible flat cable 1 and the metal shielding cover 7.
The radio frequency signal contact 13 and the grounding contact 14 of the opposite end connecting component are in one-to-one correspondence with the arrangement of the radio frequency signal spring needle and the grounding spring needle on the metal structural part, the radio frequency signal contact 13 is surrounded by a circle of grounding contact 14, and the grounding contact 14 is shared between adjacent channels. In order to reduce the contact resistance between the radio frequency signal spring pin 4 and the radio frequency signal contact, an indium bump 15 can be added on the contact.
According to the embodiment of the present disclosure, as shown in fig. 6a to 6d, the flexible flat cable for FPC includes three metal film layers 10 and two dielectric substrate layers 11 respectively sandwiched between the three metal film layers, and the end of the flexible flat cable for FPC is provided with a gold finger (e.g., the left area of fig. 6a and 6 c). The golden finger is used for connecting a circuit and/or transmitting signals. The metal film layers 10 on the upper surface layer and the lower surface layer of the FPC flexible flat cable are metal grounds, and the metal film layer 10 in the middle is a radio frequency signal transmission layer and is provided with a plurality of paths of radio frequency signal paths. An array of metallized vias 12 is arranged equidistant between adjacent radio frequency signal paths, the array of metallized vias 12 being used for signal shielding between adjacent radio frequency signal paths.
According to the embodiments of the present disclosure, as shown in fig. 6a to 6d, the FPC flexible flat cable 1 includes two typical transmission line types, i.e., a coplanar waveguide transmission line as shown in fig. 6a and 6b, and a strip line transmission line as shown in fig. 6c and 6 d. When the signal line of the middle metal film layer 10 reaches the end connection position, the signal line can be transited to the surface gold finger through the metallized via hole 12. N paths of radio frequency signal lines are uniformly distributed on the FPC flexible flat cable 1 at equal intervals, and metallized through holes 12 are uniformly distributed between adjacent radio frequency signal paths at equal intervals and used for signal shielding and improving channel isolation. The signal transmission line of each radio frequency signal path is set to be 50 ohm standard characteristic impedance.
According to the embodiment of the disclosure, as shown in fig. 3, 4a, 4b and 4c, the FPC-based multi-channel radio frequency connector further comprises a metal shielding cover 7, wherein the metal shielding cover 7 is arranged on the golden finger of the FPC flexible flat cable and the metal structural member 2, and is configured to have shielding isolation ribs 701 for signal isolation between adjacent radio frequency signal channels. The multi-channel radio frequency connector further comprises a locating pin 8 and a fastening structure configured for locating and connecting the metallic structural member 2 with the opposite end connection member 3 and/or the FPC flexible flat cable 1. For example, the positioning pins 8 are matched with the positioning pin holes 801 on the opposite end connecting part 3 and/or the flexible flat cable 1 and/or the metal shielding cover, and then the metal shielding cover is fixedly connected through a fastening structure, for example, the fastening structure can be fixedly connected through installing a fastening bolt in the fastening screw hole 9, for example, the metal structural part 2 is fixedly connected with the opposite end connecting part 3, or the metal structural part 2 is fixedly connected with the metal shielding cover 7.
According to the embodiment of the disclosure, n+1 shielding isolation ribs 7 can be arranged on the metal shielding cover 7 and used for completely shielding signals between adjacent channels of the flexible flat cable of the FPC, so that high isolation index is ensured. At the same time, the metal shielding cover 7 is provided with a positioning pin hole 801 and a fastening screw hole 9.
According to the embodiment of the disclosure, after the flexible wire 1, the metal structural member 2 and the opposite-end connecting component 3 are locked by the fastening structure, the radio frequency signal spring needle 4 and the grounding spring needle 5 are compressed, so that elastic force is generated, and the radio frequency spring needle 4 and the grounding spring needle 5 are respectively and reliably contacted with the radio frequency signal contact 13 and the grounding contact 14.
According to the embodiment of the present disclosure, the material of the metal structural member 2 and the metal shielding cover 7 may be copper alloy such as brass and phosphor bronze.
According to the embodiment of the present disclosure, the insulator 6 may be made of teflon or polyimide PI, or may be a sintered glass bead.
According to the embodiment of the disclosure, the array formed by the radio frequency signal spring pins 4 and the ground spring pins 5 can be arranged at will according to actual demand scenes.
Thus, embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the elements and methods are not limited to the specific structures, shapes or modes mentioned in the embodiments, and may be simply modified or replaced by those of ordinary skill in the art.
From the above description, it should be apparent to those skilled in the art that the present disclosure is directed to an FPC-based multichannel rf connector.
In summary, the disclosure provides a multi-channel radio frequency connector based on FPC, which realizes efficient signal transmission of interconnection between PCBs, and can be used for large-scale expansion of low-temperature connection for superconducting quantum computation.
It should also be noted that the foregoing describes various embodiments of the present disclosure. These examples are provided to illustrate the technical content of the present disclosure, and are not intended to limit the scope of the claims of the present disclosure. A feature of one embodiment may be applied to other embodiments by suitable modifications, substitutions, combinations, and separations.
It should be noted that in this document, having "an" element is not limited to having a single element, but may have one or more elements unless specifically indicated.
In this context, the so-called feature A "or" (or) or "and/or" (and/or) feature B, unless specifically indicated, refers to the presence of B alone, or both A and B; the feature A "and" (and) or "AND" (and) or "and" (and) feature B, means that the nail and the B coexist; the terms "comprising," "including," "having," "containing," and "containing" are intended to be inclusive and not limited to.
Furthermore, unless specifically described or steps must occur in sequence, the order of the above steps is not limited to the list above and may be changed or rearranged according to the desired design. In addition, the above embodiments may be mixed with each other or other embodiments based on design and reliability, i.e. the technical features of the different embodiments may be freely combined to form more embodiments.
While the foregoing embodiments have been described in some detail for purposes of clarity of understanding, it will be understood that the foregoing embodiments are merely illustrative of the invention and are not intended to limit the invention, and that any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (10)
1. A FPC-based multichannel radio frequency connector, comprising:
the FPC flexible flat cable comprises a plurality of paths of radio frequency signal paths; and
the metal structural part is provided with a plurality of radio frequency signal through holes, and a radio frequency signal spring needle is fixedly supported in each radio frequency signal through hole through an insulator; a plurality of grounding spring pins are uniformly arranged around each radio frequency signal through hole;
the radio frequency signal spring needle and the grounding spring needle are configured to be elastically connected to the opposite-end connecting component and/or the FPC flexible flat cable, so that radio frequency signals are transmitted through the radio frequency signal spring needle.
2. The FPC-based multichannel radio frequency connector of claim 1, wherein the types of radio frequency signal pins and ground pins include split double-ended pins, split single-ended pins, integral elastic pins.
3. The FPC-based multichannel radio frequency connector according to claim 1, wherein tip positions of the probes of the radio frequency signal pins and/or the ground pins extend out of the metal structural member to be connected with the opposite end connection member and/or the FPC flexible flat cable.
4. The FPC-based multichannel radio frequency connector according to claim 1, wherein each radio frequency signal via is coaxially arranged with an insulator, a radio frequency signal spring pin, and the like disposed in the radio frequency signal via.
5. The FPC-based multichannel radio frequency connector according to claim 1, wherein the FPC flexible flat cable comprises three metal film layers and two dielectric substrate layers respectively sandwiched between the three metal film layers, and a gold finger is provided at the end of the FPC flexible flat cable.
6. The FPC-based multichannel rf connector of claim 5, wherein the metal film layers on the upper and lower surfaces of the FPC flexible flat cable are metal grounds, and the middle metal film layer is an rf signal transmission layer and is provided with a plurality of rf signal paths.
7. The FPC-based multichannel rf connector of claim 6, wherein adjacent rf signal paths are equally spaced with an array of metallized vias for signal shielding between adjacent rf signal paths.
8. The FPC-based multichannel radio frequency connector according to claim 1, wherein the FPC flexible flat cable is connected in parallel to the mounting surface of the opposite-end connection member through a radio frequency signal pin and a ground pin, or the FPC flexible flat cable is connected vertically to the mounting surface of the opposite-end connection member through a radio frequency signal pin and a ground pin.
9. The FPC-based multichannel radio frequency connector of claim 1, further comprising a metal shield cover disposed over the gold fingers and the metal structural members of the FPC flexible flat cable and configured with shield isolation ribs for signal isolation between adjacent radio frequency signal channels of the FPC gold fingers.
10. The FPC-based multichannel radio frequency connector according to claim 1, further comprising positioning pins and fastening structures configured for positioning and connection of the metallic structural member with the opposite connection member and/or the FPC flexible flat cable.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310967329.4A CN116706580A (en) | 2023-08-03 | 2023-08-03 | Multi-channel radio frequency connector based on FPC |
| CN202323283129.1U CN221305035U (en) | 2023-08-03 | 2023-11-29 | Multi-channel radio frequency connector based on FPC |
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| CN202310967329.4A CN116706580A (en) | 2023-08-03 | 2023-08-03 | Multi-channel radio frequency connector based on FPC |
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| CN202323283129.1U Active CN221305035U (en) | 2023-08-03 | 2023-11-29 | Multi-channel radio frequency connector based on FPC |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118399150A (en) * | 2024-06-28 | 2024-07-26 | 合肥国家实验室 | Multi-channel radio frequency connector |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN221305035U (en) | 2024-07-09 |
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