CN201289902Y - Antenna structure capable of hoisting isolation degree between close range antenna - Google Patents
Antenna structure capable of hoisting isolation degree between close range antenna Download PDFInfo
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- CN201289902Y CN201289902Y CNU2008201141774U CN200820114177U CN201289902Y CN 201289902 Y CN201289902 Y CN 201289902Y CN U2008201141774 U CNU2008201141774 U CN U2008201141774U CN 200820114177 U CN200820114177 U CN 200820114177U CN 201289902 Y CN201289902 Y CN 201289902Y
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Abstract
The utility model relates to an antenna structure capable of increasing the spacing deviation degree of short-range antennae, in particular to an antenna structure capable of effectively increasing the spacing deviation degree of antennae. The antenna structure mainly comprises a first antenna, a second antenna, an isolating slotted hole and a grounding surface, wherein the first antenna is arranged on the left side of the grounding surface and connected with the grounding surface through a first feed-in point; the second antenna is mirrored on the first antenna, arranged on the right side of the grounding surface and connected with the grounding surface through a second feed-in point; and the isolating slotted hole is perforates the grounding surface between the first antenna and the second antenna, therefore, the isolating slotted hole is formed between the antennae, the isolation between the antennae is increased, and the mutual interference of various antennae of transmitting and receiving wireless signals is reduced.
Description
Technical field
The utility model relates to a kind of closely antenna structure of isolation between antennas that promotes, and isolates slotted eye and is arranged between antenna and antenna, will increase antenna and isolation between antennae, to reduce the wireless signal phase mutual interference of each antenna receiving-sending.
Background technology
Along with mechanics of communication development fast, the requirement of communication quality is more and more higher, and the design of communication product all advances towards light, thin, short, little notion, so will make the antenna structure of communication product must be confined to the interior setting of certain volume.
If the design department of communication product has the above structure of double antenna, and furnish this double antenna in limited space, then the distance between antenna and antenna will be very approaching.
So, the distance between each antenna is too near, will cause antenna easily when the transmitting/receiving wireless signal, and each wireless signal phase mutual interference whereby, will have influence on the communication quality of antenna, and then reduces the overall efficiency of communication product.
Therefore, it is little, in light weight how to design volume, and the stable antenna of communication quality, will be the following target that must break through of antenna technical field.
The utility model content
Main purpose of the present utility model, be to provide a kind of closely antenna structure of isolation between antennas that promotes, one isolates slotted eye is arranged between antenna and antenna, to effectively increase antenna and isolation between antennae, to reduce the wireless signal phase mutual interference that each antenna is received and dispatched, to improve the communication quality of each antenna.
Secondary objective of the present utility model, be to provide a kind of closely antenna structure of isolation between antennas that promotes, directly be in the layout of antenna on the substrate, the manufacturing process of antenna will be simplified, to reduce the production cost of antenna, and combine with the circuit system of Wi-Fi easily, to improve the integration ability of circuit.
Another purpose of the present utility model, be to provide a kind of closely antenna structure of isolation between antennas that promotes, the part substrate of radiating surface, second load point and ground plane that is not provided with radiating surface, first load point, second antenna of first antenna can be removed, to form the hollow out aspect, to make antenna in air, form a resonant cavity, to improve the radiation efficiency of antenna.
For achieving the above object, the utility model adopts following concrete technical scheme:
A kind of closely antenna structure of isolation between antennas that promotes, it mainly includes:
One first antenna, include one first trapezoidal portion, one the one n shape portion, one first linkage section and one first adjusting section, this first trapezoidal will connect a n shape portion, this first linkage section and this first adjusting section in regular turn to form the radiating surface of this first antenna, and be provided with one first groove between this first trapezoidal and a n shape portion, be provided with one second groove in the one n shape portion, be provided with one the 3rd groove between the one n shape portion and this first linkage section, this first linkage section and intersegmental the 4th irregularly shaped groove that is provided with of this first adjusting;
One second antenna, include one second trapezoidal portion, one the 2nd n shape portion, one second linkage section and one second adjusting section, this second trapezoidal will connect the 2nd n shape portion, this second linkage section and this second adjusting section in regular turn to form the radiating surface of this second antenna, and be provided with one the 5th groove between this second trapezoidal and the 2nd n shape portion, be provided with one the 6th groove in the 2nd n shape portion, be provided with one the 7th groove between the 2nd n shape portion and this second linkage section, this second linkage section and intersegmental erose the 8th groove that is provided with of this second adjusting;
One ground plane, this first antenna is arranged on the left side of this ground plane, and this first antenna will connect this ground plane through one first load point, and this second antenna is arranged on the right side of this ground plane, this second antenna will connect this ground plane through one second load point; And
One isolates slotted eye, cuts a hole in this ground plane that is located between this first antenna and this second antenna.
Above-mentioned antenna structure, wherein be provided with a first passage and one first isolated groove between this first antenna and this ground plane, this first passage is connected between this this first antenna and this ground plane, this first antenna will be through this first isolated groove to isolate this ground plane, and this first load point will be located in this first isolated groove, and be provided with a second channel and one second isolated groove between this second antenna and this ground plane, this second channel is connected between this this second antenna and this ground plane, this second antenna will be through this second isolated groove isolating this ground plane, and this second load point will be located in this second isolated groove.
Above-mentioned antenna structure includes a substrate, and the radiating surface of the radiating surface of this first antenna, this first load point, this second antenna, this second load point and this ground plane are separately positioned on the part surface of this substrate.
Above-mentioned antenna structure, it is made that wherein this substrate is to use a glass reinforced epoxy.
Above-mentioned antenna structure, wherein will produce first current path of one first operational frequency bands between this first load point, this first linkage section, a n shape portion and this first trapezoidal, this first load point and intersegmental second current path that will produce one second operational frequency bands of this first adjusting, to produce the 3rd current path of one first operational frequency bands between this second load point, this second linkage section, the 2nd n shape portion and this second trapezoidal, and this second load point and this second regulated intersegmental the 4th current path that will produce one second operational frequency bands.
Above-mentioned antenna structure, wherein this first operational frequency bands operates in low-frequency band, and this second operational frequency bands operates in high frequency band.
Above-mentioned antenna structure, wherein the path of this first current path approaches 1/4 wavelength of this first operational frequency bands, and the path of this second current path approaches 1/4 wavelength of this second operational frequency bands.
Above-mentioned antenna structure, wherein this isolation slotted eye is a hollow-out parts.
Above-mentioned antenna structure wherein will be provided with a foam or a non-conducting material in this isolation slotted eye.
Above-mentioned antenna structure, the part substrate of radiating surface, this second load point and this ground plane that wherein is not provided with radiating surface, this first load point, this second antenna of this first antenna is a hollow out.
Advantage of the present utility model and benefit:
The utility model antenna structure can increase isolation between antennae after adding the isolation slotted eye really, not only reduces the wireless signal phase mutual interference between antenna, and further improves the communication quality of antenna.
Description of drawings
Fig. 1 can promote the closely organigram of 1 preferred embodiment of the antenna structure of isolation between antennas for the utility model;
Fig. 2 can promote the closely current path schematic diagram of the antenna structure of isolation between antennas for the utility model;
Fig. 3 can promote the closely organigram of 1 embodiment again of the antenna structure of isolation between antennas for the utility model;
Fig. 4 can promote the closely organigram of 1 embodiment again of the antenna structure of isolation between antennas for the utility model;
Fig. 5 one is not provided with the penetration loss figure of the antenna structure of isolating slotted eye;
Fig. 6 one is provided with the penetration loss figure of the antenna structure of isolating slotted eye.
The main element symbol description
10 first antennas, 11 first load points
121 first grooves, 122 second grooves
123 the 3rd grooves 124 the 4th groove
125 first isolated grooves, 13 first trapezoidal portions
141 first passages 15 a n shape portion
161 first current paths, 163 second current paths
21 ground planes 23 are isolated slotted eye
231 foams, 30 second antennas
31 second load points 321 the 5th groove
322 the 6th grooves 323 the 7th groove
324 the 8th grooves, 325 second isolated grooves
33 second trapezoidal 341 second channels
35 the 2nd n shape portions 361 the 3rd current path
363 the 4th current paths, 50 substrates
100 antenna structures, 200 antenna structures
Embodiment
At first, as shown in Figure 1, for the utility model can promote the closely organigram of 1 preferred embodiment of the antenna structure of isolation between antennas.As shown in the figure, the primary structure of antenna structure 100 includes: one first antenna 10, one second antenna 30 and a ground plane 21.
Wherein first antenna 10 will be arranged on the left side of ground plane 21, and include one first trapezoidal 13, one the one n shape portion 15, one first linkage section 17 and one first regulate section 19.To connect a n shape portion 15, first linkage section 17 and the first adjusting section 19 for first trapezoidal 13 in regular turn to form the radiating surface of this first antenna 10.
And first trapezoidal 13 and 15 in a n shape portion will be provided with one first groove 121, to be provided with one second groove 122 in the one n shape portion 15, the one n shape portion 15 and 17 of first linkage sections will be provided with one the 3rd groove 123, first linkage section 17 and first is regulated 19 of sections will be provided with one the 4th groove 124, and first groove 121, second groove 122 and the 3rd groove 123 are all a strip, and the 4th groove 124 is an irregular shape.In addition, first linkage section 17 and first is regulated section 19 will be connected with one first load point 11, and whereby, first antenna 10 can see through first load point 11 and connect this ground plane 21.
Second antenna, 30 mirrors are arranged on the right side of ground plane 21 in the structure of first antenna 10, and include one second trapezoidal 33, one the 2nd n shape portion 35, one second linkage section 37 and one second regulate section 39.To connect the 2nd n shape portion 35, second linkage section 37 and the second adjusting section 39 for second trapezoidal 33 in regular turn to form the radiating surface of this second antenna 30.
And second trapezoidal 33 and the 2nd 35 in n shape portion will be provided with one the 5th groove 321, to be provided with one the 6th groove 322 in the 2nd n shape portion 35, the 2nd n shape portion 35 and 37 of second linkage sections will be provided with one the 7th groove 323, second linkage section 37 and second is regulated 39 of sections will be provided with one the 8th groove 324, and the 5th groove 321, the 6th groove 322 and the 7th groove 323 are all a strip, and the 8th groove 324 is an irregular shape.In addition, second linkage section 37 and second is regulated section 39 will be connected with one second load point 31, and whereby, second antenna 30 can see through second load point 31 and connect this ground plane 21.
The utility model antenna structure 100 still includes one and isolates slotted eye 23, and this isolation slotted eye 23 is located at cutter in the ground plane 21 of 30 on first antenna 10 and second antenna, and the isolation slotted eye 23 in the present embodiment can be a hollow-out parts.
The utility model antenna structure 100 is the antenna structure of a dimensions downsizing, at in-plant first antenna 10 and 30 on second antenna this isolation slotted eye 23 is set, the isolation of 30 on first antenna 10 and second antenna will effectively be increased, with the wireless signals of avoiding first antenna 10 and second antenna 30 because distance is too near and the take place indivedual transmitting-receivings situation of mutual interference mutually, and then improve the communication quality of antenna structure 100.
21 of first antenna 10 and ground planes still are provided with a first passage 141 and one first isolated groove 125, and 21 of second antenna 30 and ground planes still are provided with a second channel 341 and one second isolated groove 325.
And first of first antenna 10 is regulated section 19 will isolate this ground plane 21 through first isolated groove 125, and the second adjusting section 39 of second antenna 30 will be isolated this ground plane 21 through second isolated groove 325.In addition, first load point 11 as mentioned above and second load point 31 will be separately positioned in first isolated groove 125 and second isolated groove 325.
The antenna structure 100 of present embodiment still includes a substrate 50, radiating surface, second load point 31 and the ground plane 21 of the radiating surface of first antenna 10, first load point 11, second antenna 30 layout respectively is located on the part surface of substrate 50, and this substrate 50 is that glass reinforced epoxy (FR4) is made.
The antenna structure 100 of present embodiment directly is in the layout of on the substrate 50, not only can simplify the manufacturing process of antenna, and reduce the production cost of antenna, and can reach the long-pending body effect of circuit, and combine with the circuit system of Wi-Fi easily, can improve the integration ability of circuit whereby.
Continue, as shown in Figure 2, for the utility model can promote the closely current path schematic diagram of the antenna structure of isolation between antennas.As shown in the figure, first antenna 10 includes one first current path 161 and one second current path 163, and second antenna 30 includes one the 3rd current path 361 and one the 4th current path 363.
First current path 161 of first antenna 10 wherein, electric current are by 11 beginnings of first load point, first linkage section 17 of flowing through, 15 and first trapezoidal 13 first current paths 161 that one first operational frequency bands is arranged with generation of a n shape portion.And second current path 163 of first antenna 10, electric current is by 11 beginnings of first load point, the first adjusting section 19 of flowing through has second current path 163 of one second operational frequency bands with generation.
In like manner, the 3rd current path 361 of second antenna 30, electric current are by 31 beginnings of second load point, second linkage section 37 of flowing through, 35 and second trapezoidal 33 the 3rd current paths 361 that one first operational frequency bands is arranged with generation of the 2nd n shape portion; And the 4th current path 363 of second antenna 30, electric current is by 31 beginnings of second load point, the second adjusting section 39 of flowing through has the 4th current path 363 of one second operational frequency bands with generation.
As shown in Figure 2, the path of first current path 161 is obviously greater than second current path 163, and the path of the 3rd current path 361 is obviously greater than the 4th current path 363, therefore, the utility model antenna structure 100 designs first operational frequency bands operates in lower frequency, for example: 2.3GHz～2.8GHz, operate in higher frequency and design second operational frequency bands, for example: 4.9GHz～5.9GHz, and, the path of first current path 161 and the 3rd current path 361 approaches 1/4 wavelength of first operational frequency bands approximately, and the path of second current path 163 and the 4th current path 363 then approaches 1/4 wavelength of second operational frequency bands approximately.
Therefore, the antenna structure 100 that first antenna 10 and second antenna 30 are formed can operate in first operational frequency bands and second operational frequency bands simultaneously, to reach multi-input multi output (MIMO, purpose Multi-inputMulti-output).
Certainly, antenna structure 100 of the present utility model also can be adjusted first of first antenna 10 according to considering of design and regulate area and the length that second of section 19 and second antenna 30 is regulated section 39, to change the path of first current path 161 and the 3rd current path 361; Perhaps also can adjust the 5th groove 321, the 6th groove 322 of first groove 121, second groove 122, the 3rd groove 123 and second antenna 30 of first antenna 10, the area and the length of the 7th groove 323, to change the path of second current path 163 and the 4th current path 363.So, the utility model antenna structure 100 can further adjust first operational frequency bands and second operational frequency bands of realistic demand.
Isolation slotted eye 23 as shown in Figure 1 can be a hollow-out parts.So, as shown in Figure 2, isolation slotted eye 23 of the present utility model also can select to have additional a foam 231 or a non-conducting material (for example: plastifying material), to strengthen antenna and isolation between antennae.
As shown in Figure 3, be the organigram of the another embodiment of the utility model antenna structure.The quality of antenna radiation efficiency, one of them factor depends on dielectric material.Antenna will form a resonant cavity on dielectric material when receiving or send wireless signal.If antenna is arranged on the higher dielectric material of dielectric constant, its radiation efficiency will thereby reduce.Otherwise antenna is arranged on the low more dielectric material of dielectric constant, and then the radiation efficiency of antenna will improve relatively.
Antenna structure shown in Figure 1 (100) is in order to reach the effect of long-pending bodyization, to design little, the lightweight antenna of volume, be that antenna structure (100) directly is in the layout of on the substrate 50, the dielectric constant of the substrate 50 of general glass fibre is usually between 3.0 to 5.0.
So, the antenna structure 200 of present embodiment is in order to improve the radiation efficiency of antenna, also the part substrate of radiating surface, second load point 31 and ground plane 21 that is not provided with radiating surface, first load point 11, second antenna 30 of first antenna 10 can be removed, to form a hollow out aspect, and the isolation slotted eye 23 of this moment may be selected to be a hollow-out parts.
After antenna structure 200 removes substrate 50 partly, when antenna structure 200 receptions or transmission wireless signal, will on air, form a resonant cavity, because the dielectric constant lower (being approximately 1) of air will significantly improve the radiation efficiency of antenna structure 200 whereby.
Certainly, the utility model antenna structure 200 is in order to improve isolation between antennae, also can be as shown in Figure 4, in isolating slotted eye 23, select to be provided with a foam 231 or a non-conducting material (for example: plastifying material), so to avoid other wireless signal phase mutual interference between antenna.
As Fig. 5 and shown in Figure 6, be the penetration loss figure that a penetration loss figure and who is not provided with the antenna structure of isolating slotted eye is provided with the antenna structure of isolating slotted eye.
The utility model antenna structure for four Frequency points 1. (2.4GHz), 2. (2.5GHz), 3. (4.9GHz) and 4. (5.8GHz) carries out the action of S parameter measurement.
As shown in Figure 5, be not provided with the antenna structure of isolating slotted eye, be about in the measured S parameter of four Frequency points of frequency band curve-8db ,-9db ,-19db and-22db.
And as shown in Figure 6, be provided with the antenna structure of isolating slotted eye, be about in the measured S parameter of four Frequency points of frequency band curve-13db ,-16db ,-21db and-33db.
By the S parameter of last measurement as can be known, it is all also low than not being provided with the antenna structure (Fig. 5) of isolating slotted eye in the db value of the measured S parameter of each Frequency point to add the antenna structure (Fig. 6) of isolating slotted eye, and on behalf of the antenna structure (Fig. 6) behind the adding isolation slotted eye, this promptly to have preferable communication quality.
Therefore, the utility model antenna structure can increase isolation between antennae after adding the isolation slotted eye really, not only reduces the wireless signal phase mutual interference between antenna, and further improves the communication quality of antenna.
The above person, it only is preferred embodiment of the present utility model, be not to be used for limiting the scope that this creation is implemented, be that all equalizations of doing according to the described shape of the utility model claim, structure, feature and spirit change and modification, all should be included in the claim of the present utility model.
Claims (10)
1, a kind of closely antenna structure of isolation between antennas that promotes is characterized in that it mainly includes:
One first antenna, include one first trapezoidal portion, one the one n shape portion, one first linkage section and one first adjusting section, this first trapezoidal will connect a n shape portion, this first linkage section and this first adjusting section in regular turn to form the radiating surface of this first antenna, and be provided with one first groove between this first trapezoidal and a n shape portion, be provided with one second groove in the one n shape portion, be provided with one the 3rd groove between the one n shape portion and this first linkage section, this first linkage section and intersegmental the 4th irregularly shaped groove that is provided with of this first adjusting;
One second antenna, include one second trapezoidal portion, one the 2nd n shape portion, one second linkage section and one second adjusting section, this second trapezoidal will connect the 2nd n shape portion, this second linkage section and this second adjusting section in regular turn to form the radiating surface of this second antenna, and be provided with one the 5th groove between this second trapezoidal and the 2nd n shape portion, be provided with one the 6th groove in the 2nd n shape portion, be provided with one the 7th groove between the 2nd n shape portion and this second linkage section, this second linkage section and intersegmental erose the 8th groove that is provided with of this second adjusting;
One ground plane, this first antenna is arranged on the left side of this ground plane, and this first antenna will connect this ground plane through one first load point, and this second antenna is arranged on the right side of this ground plane, this second antenna will connect this ground plane through one second load point; And
One isolates slotted eye, cuts a hole in this ground plane that is located between this first antenna and this second antenna.
2, antenna structure according to claim 1, it is characterized in that, wherein be provided with a first passage and one first isolated groove between this first antenna and this ground plane, this first passage is connected between this this first antenna and this ground plane, this first antenna will be through this first isolated groove to isolate this ground plane, and this first load point will be located in this first isolated groove, and be provided with a second channel and one second isolated groove between this second antenna and this ground plane, this second channel is connected between this this second antenna and this ground plane, this second antenna will be through this second isolated groove isolating this ground plane, and this second load point will be located in this second isolated groove.
3, antenna structure according to claim 1, it is characterized in that, it includes a substrate, and the radiating surface of the radiating surface of this first antenna, this first load point, this second antenna, this second load point and this ground plane are separately positioned on the part surface of this substrate.
4, antenna structure according to claim 3 is characterized in that, it is made that wherein this substrate is to use a glass reinforced epoxy.
5, antenna structure according to claim 1, it is characterized in that, this first load point wherein, this first linkage section, to produce first current path of one first operational frequency bands between the one n shape portion and this first trapezoidal, this first load point and intersegmental second current path that will produce one second operational frequency bands of this first adjusting, this second load point, this second linkage section, to produce the 3rd current path of one first operational frequency bands between the 2nd n shape portion and this second trapezoidal, and this second load point and this second regulated intersegmental the 4th current path that will produce one second operational frequency bands.
6, antenna structure according to claim 5 is characterized in that, wherein this first operational frequency bands operates in low-frequency band, and this second operational frequency bands operates in high frequency band.
7, antenna structure according to claim 5 is characterized in that, wherein the path of this first current path approaches 1/4 wavelength of this first operational frequency bands, and the path of this second current path approaches 1/4 wavelength of this second operational frequency bands.
8, antenna structure according to claim 1 is characterized in that, wherein this isolation slotted eye is a hollow-out parts.
9, antenna structure according to claim 1 is characterized in that, wherein will be provided with a foam or a non-conducting material in this isolation slotted eye.
10. antenna structure according to claim 3 is characterized in that, the part substrate of radiating surface, this second load point and this ground plane that wherein is not provided with radiating surface, this first load point, this second antenna of this first antenna is an Openworks shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201141774U CN201289902Y (en) | 2008-05-26 | 2008-05-26 | Antenna structure capable of hoisting isolation degree between close range antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201141774U CN201289902Y (en) | 2008-05-26 | 2008-05-26 | Antenna structure capable of hoisting isolation degree between close range antenna |
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| CNU2008201141774U Expired - Fee Related CN201289902Y (en) | 2008-05-26 | 2008-05-26 | Antenna structure capable of hoisting isolation degree between close range antenna |
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| CN102025025A (en) * | 2010-10-29 | 2011-04-20 | 华南理工大学 | Small-sized wideband high-isolation four-unit MIMO antenna array |
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| WO2013136050A1 (en) | 2012-03-13 | 2013-09-19 | Microsoft Corporation | Antenna isolation using a tuned ground plane notch |
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| CN102025025A (en) * | 2010-10-29 | 2011-04-20 | 华南理工大学 | Small-sized wideband high-isolation four-unit MIMO antenna array |
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| CN103326131B (en) * | 2012-03-19 | 2015-11-18 | 富士通株式会社 | Antenna assembly, electronic equipment and wireless communications method |
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| CN103811868A (en) * | 2012-11-05 | 2014-05-21 | 启碁科技股份有限公司 | Antenna assembly and radio communication apparatus |
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| CN104078766A (en) * | 2013-03-29 | 2014-10-01 | 富士通天株式会社 | Antenna device and radar device |
| CN104218327A (en) * | 2013-06-05 | 2014-12-17 | 中兴通讯股份有限公司 | Antenna system and terminal |
| CN104282993A (en) * | 2013-07-05 | 2015-01-14 | 启碁科技股份有限公司 | Radio frequency device and wireless communication device |
| CN104505590A (en) * | 2014-12-05 | 2015-04-08 | 深圳市信维通信股份有限公司 | MIMO (Multi-Input Multi-Output) antenna structure of WIFI (Wireless Fidelity) terminal |
| CN104505590B (en) * | 2014-12-05 | 2018-05-01 | 深圳市信维通信股份有限公司 | The mimo antenna structure of WIFI terminal |
| CN105048064B (en) * | 2015-08-03 | 2018-07-17 | 深圳市信维通信股份有限公司 | A kind of antenna for mobile telephone set |
| CN105048064A (en) * | 2015-08-03 | 2015-11-11 | 深圳市信维通信股份有限公司 | Antenna device for mobile phone |
| CN106921038A (en) * | 2015-12-24 | 2017-07-04 | 华为技术有限公司 | Multi-input/output antenna |
| CN106450753A (en) * | 2016-09-12 | 2017-02-22 | 广东欧珀移动通信有限公司 | Antenna structure and mobile terminal |
| CN106455300B (en) * | 2016-11-10 | 2023-09-12 | Oppo广东移动通信有限公司 | Circuit board and mobile terminal |
| CN106455300A (en) * | 2016-11-10 | 2017-02-22 | 广东欧珀移动通信有限公司 | Circuit board and mobile terminal |
| CN109119744B (en) * | 2017-06-23 | 2020-09-01 | 智易科技股份有限公司 | Wireless communication module |
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| CN108232436A (en) * | 2017-12-19 | 2018-06-29 | 中国计量大学 | A kind of high isolation multi-input/output antenna based on parasitic ground structure |
| WO2020057236A1 (en) * | 2018-09-20 | 2020-03-26 | 中兴通讯股份有限公司 | Terminal |
| CN109860981A (en) * | 2019-04-02 | 2019-06-07 | 中天宽带技术有限公司 | A kind of mobile terminal mimo antenna and mobile terminal |
| CN112490692A (en) * | 2019-09-12 | 2021-03-12 | 诺基亚通信公司 | Antenna with a shield |
| CN111817000A (en) * | 2020-07-07 | 2020-10-23 | 西安朗普达通信科技有限公司 | Method for improving coupling performance of multi-antenna system by adopting heat dissipation hole structure |
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