CN107395220B

CN107395220B - Multifunctional signal transceiver

Info

Publication number: CN107395220B
Application number: CN201710616670.XA
Authority: CN
Inventors: 杨瑞典; 杨博良
Original assignee: Shenzhen Antop Technology Ltd
Current assignee: Shenzhen Antop Technology Ltd
Priority date: 2017-07-20
Filing date: 2017-07-20
Publication date: 2022-09-23
Anticipated expiration: 2037-07-20
Also published as: CN107395220A

Abstract

This patent relates to a multi-functional signal transceiver, includes the shell and sets up antenna module and circuit assembly in the shell, the antenna module includes at least: the mobile terminal comprises a first antenna for receiving television signals, a second antenna for transceiving mobile communication signals and a third antenna for transceiving WIFI signals; the first antenna, the second antenna and the third antenna are sequentially distributed in the shell from top to bottom; the circuit component at least comprises a 4G signal processing module which is electrically connected with the second antenna and the third antenna respectively. Compared with the prior art, the mobile communication terminal and the method can receive AM/FM, television and WIFI signals, and can realize the amplification output of mobile communication signals of a mobile phone or use as hot spots through the second antenna, the third antenna and the 4G signal processing module, so that a user can better receive the mobile communication signals outdoors far away from a base station or indoors with more interference on the signals.

Description

Multifunctional signal transceiver

Technical Field

This patent relates to the signal communication field, concretely relates to multi-functional signal transceiver.

Background

In daily life, communication by signals is a common means, such as television signals, mobile phone signals, network signals, radio signals, and so on, and thus various devices for receiving these signals are presented. However, almost all wireless signal receiving devices have been dedicated to a particular type of signal, such as a television antenna for receiving only television video signals, a cellular phone for receiving only wireless communication signals from a cellular base station, and a radio for receiving only wireless audio signals. Based on these different wireless networks, different types of operators need to build different wireless networks, and users need to purchase different devices for reception. For users who need to use multiple devices, they need to be equipped with different devices for receiving different signals, such as tv antenna, wireless router, mobile phone, etc., and different network wiring for different devices, etc., which results in various complicated and independent networks and wiring in a home, not only increasing the purchase cost, but also having high maintenance and repair costs, especially in situations where the installation space is limited, such as in yachts or caravans, where the space available for installing the devices is limited.

In addition, sometimes there is no network signal, and the mobile phone needs to be set only when the 3G/4G signal is used as a hotspot, so that the operation is troublesome, and particularly in the indoor or in the field, the mobile phone cannot necessarily receive the signal well, and the use experience of a user is poor; meanwhile, the television signal is generally connected to the television through a cable for playing, but only one file of program can be played, and the television signal cannot be played on intelligent equipment such as a mobile phone and a tablet personal computer, and cannot simultaneously meet various requirements of multiple users.

Disclosure of Invention

In order to overcome prior art's defect, this patent provides a multi-functional signal transceiver, can unify the signal of receiving multiple difference, satisfies user's daily communication requirement, and occupation space is little, and the simple installation is simple and convenient.

In order to solve the technical problem, the patent comprises the following steps: a multi-function signal transceiver comprising a housing and an antenna assembly and a circuit assembly disposed within the housing, the antenna assembly comprising at least: the mobile terminal comprises a first antenna for receiving television signals, a second antenna for transceiving mobile communication signals and a third antenna for transceiving WIFI signals;

the first antenna, the second antenna and the third antenna are sequentially distributed in the shell from top to bottom;

the circuit component at least comprises a 4G signal processing module which is electrically connected with the second antenna and the third antenna respectively.

Compared with the prior art, the mobile communication signal receiving and amplifying device can receive AM/FM, television and WIFI signals, and can amplify and output the mobile communication signal of the mobile phone or use the mobile communication signal as a hot spot through the second antenna, the third antenna and the 4G signal processing module, so that a user can better receive the mobile communication signal outdoors far away from a base station or indoors with more interference on signals.

Further, the 4G signal processing module comprises a same-frequency combiner, a 4G-to-WIFI module and a 4G amplification module, the same-frequency combiner at least comprises an input end and two output ends, the input end is electrically connected with the second antenna, the two output ends are respectively and correspondingly and electrically connected with the 4G-to-WIFI module and the 4G amplification module, and the 4G-to-WIFI module is electrically connected with the third antenna.

The 4G signal of multiple frequency channel divide into two tunnel outputs after the way is closed through the same-frequency combiner, on the one hand can pass through 4G commentaries on classics WIFI module and let the equipment that possess the connection WIFI function can both connect the online through the third antenna, convenience of customers can surf the net when there is not usable WIFI signal in the open air, user's experience in the open air has greatly been improved, on the other hand passes through the second antenna that smart machine such as cell-phone of received signal ability is strong and gets into 4G amplifier module again after the transfer to the 4G signal and enlargies the output, the coverage of 4G signal has been increased, let user's cell-phone can receive the 4G signal, and can carry out normal conversation and online.

Furthermore, the isolation degree of the same-frequency combiner is more than 40db, and the two output ends are provided with different impedances.

The same-frequency combiner divides the signal into two paths with the same frequency for output, namely the 4G-to-WIFI module and the 4G amplification module are easy to interfere with each other due to the same frequency, especially, the uplink signal amplified in the 4G amplifying module will affect the receiving sensitivity of the 4G to WIFI module, and in severe cases, the uplink signal will block the 4G to WIFI module, and when the output power of the 4G-to-WIFI module reaches 27dBm, the downlink signal low-noise filter of the 4G amplification module is greatly influenced, therefore, the isolation index of the same-frequency combiner is necessarily optimized and improved, so that the 4G-to-WIFI module and the 4G amplification module can work normally at the same time, the requirements of strong mobile phone signals and smooth internet surfing of users are met, the two output ends have different impedances so as to better isolate the signals, the problem of same-frequency interference is solved, and the signals are guaranteed to be received and transmitted normally.

Furthermore, the 4G amplifying module comprises two combiners, a duplexer, a quadruplex and a controller, the controller is electrically connected with the duplexer and the quadruplex respectively, the output end of the same-frequency combiner is electrically connected with one of the combiners, and the combiner inputs signals into the duplexer and the quadruplex respectively and outputs the signals through the other combiner.

In order to achieve smaller size and occupy smaller space, the arrangement of a duplexer and a quadroplexer can process the three most commonly used 4G frequency bands, and ensure that the three frequency bands can normally receive and transmit data.

Furthermore, the gain of the cross point of the uplink frequency response curve and the downlink frequency response curve of the duplexer is below-20 db, and the average suppression degree outside the working frequency is above 45 db.

The smaller the gain of the intersection point of the response curve of the uplink frequency and the corresponding curve of the downlink frequency is, the higher the isolation of the duplexer to the uplink frequency and the downlink frequency is proved to be, but the average suppression degree of the general duplexer to the frequencies except the working frequency is only 25 db-30 db, and because the same frequency interference exists in the 4G-to-WIFI module and the 4G amplification module, the higher average suppression degree to other frequencies is required, and the normal receiving and sending of signals are ensured.

Furthermore, the out-of-band rejection of the combiner is more than 45db, and the insertion loss is less than 1.5 db.

Because 4G amplification module can amplify the signal, so corresponding in order to improve the degree of inhibition to the noise, conventional combiner outband is suppressed to 25 to 30db, and the outband of this patent combiner sets up to more than 45db to further reduce the noise in 4G amplification module, and the noise can not attenuate in the transmission, but the signal has the loss in the transmission, therefore the combiner reduces the insertion loss and also reduces the proportion that the noise accounts for in the signal, has reduced the noise factor, guarantees that the signal is undistorted.

Furthermore, the second antenna is two cross inverted cone antennas and is arranged in an x shape.

Two adjacent oscillators are 90 degrees between two cross back taper antennas of constitution and are put like this setting, avoid the interference between two cross back taper antennas on furthest, improve whole gain.

Furthermore, the cross inverted cone antenna comprises two U-shaped vibrators which are inserted from top to bottom, and the curvatures of two side edges of each U-shaped vibrator are gradually increased from top to bottom.

Two U type oscillators are put into the cross, are also put in the quadrature, furthest reduces mutual interference, and the camber on U type oscillator both sides limit from the top down crescent can make the bottom more level and smooth wideer, and the level and smooth can avoid the signal to cause the noise at the pointed end, keeps certain width to enable the oscillator to receive the signal better, and finds after the experiment that sets up like this and can make the standing-wave ratio in the effective frequency channel be less than 1.5.

Further, still include the WIFI communication module that is connected with first antenna and third antenna electricity respectively.

The television signal received by the first antenna can be mixed in the WIFI signal sent by the WIFI communication module through the third antenna by the aid of the arrangement, television programs can be watched while multiple sets of equipment surf the internet, programs played by different equipment can be different, convenience is good, and user experience is improved.

Further, the antenna assembly also comprises a fourth antenna for receiving VHF and/or DAB and/or FM/AM signals, and the fourth antenna is arranged below the third antenna.

Compared with the prior art, the beneficial effects of this patent do:

this patent has integrated multiple antenna of receiving different radio signal in same equipment, can satisfy the usefulness of equipment such as TV, cell-phone, wireless mobile terminal and radio simultaneously, can also regard as the basic station of founding intelligent house and removal traffic, and the user need not to purchase multiple different equipment to lay wire respectively, improved the convenience in using and maintaining greatly. According to the noise reduction isolation method, a series of noise reduction isolation measures (a high-isolation same-frequency combiner is adopted, the problem of mutual interference between signals is solved by adopting the high-isolation combiner, the isolation between an uplink signal and a downlink signal is improved by adopting the combination of a duplexer and a quadrupler with high out-of-band rejection, the arrangement mode of two crossed inverted cone antennas and the anti-interference noise reduction design of a U-shaped oscillator in the cross inverted cone antennas and the like) are adopted for the interference between a 4G amplification module and a 4G to WIFI module, so that the 4G signal can be amplified and received by a mobile phone, and can be converted into the WIFI signal for a user to use, and the convenience is further improved.

Drawings

Fig. 1 is a perspective view of the present patent.

Fig. 2 is a schematic block diagram of the 4G signal processing module of this patent.

Fig. 3 is a top view of a second antenna of this patent.

Fig. 4 is a schematic diagram of a U-shaped vibrator according to the present patent.

Fig. 5 is a schematic diagram of a U-shaped vibrator according to the present patent.

Fig. 6 is a side view of the U-shaped vibrator of this patent.

Fig. 7 is a schematic block diagram of the internal structure of the amplification module of patent 4G.

Detailed Description

The detailed structure of the patent is further explained by the following examples in conjunction with the attached drawings.

As shown in fig. 1, the multifunctional signal transceiver comprises a housing 1, a base 4, and an antenna assembly and a circuit assembly arranged in a receiving space formed by the housing 1 and the base 4, wherein the housing 1 is in a truncated cone shape, a smooth chamfer is formed between an upper plane and a side surface, and the lower part of the side surface is smoothly transited to the base 4. An interface 5 for connecting the internal antenna module and/or the circuit module to an external device is provided on the bottom surface of the base 4.

The above-mentioned antenna module includes: a first antenna 21 for receiving television signals, a second antenna 22 for receiving mobile communication signals, a third antenna 23 for receiving WIFI signals, and a fourth antenna 24 for receiving VHF and/or DAB and/or FM/AM signals. The first antenna 21, the second antenna 22, the third antenna 23 and the fourth antenna 24 are in the accommodating space and are sequentially in a top-down distribution structure, wherein a grounding reflection plate 221 for isolation is installed below the second antenna 22, and because signals can be reflected and gathered on the grounding reflection plate 221, the grounding reflection plate 221 can also improve the receiving sensitivity of each antenna, in the actual experiment process, the mutual interference degree can be reduced by 60% due to the arrangement of the grounding reflection plate 221, and the signal-to-noise ratio of the system is improved.

The above-mentioned circuit assembly includes: a television signal feeder 31 electrically connected to the first antenna 21, a 4G signal processing module, a WIFI communication module 33 electrically connected to the first antenna 21 and the third antenna 23, respectively, and a low-frequency signal receiving box 34 electrically connected to the fourth antenna 24, as shown in fig. 2, the 4G signal processing module includes a same-frequency combiner whose input end is electrically connected to the second antenna 22, a 4G-to-WIFI module 321 electrically connected to the output end of the same-frequency combiner and the third antenna 23, respectively, and a 4G amplifying module 322 electrically connected to another output end of the same-frequency combiner; according to the weight and the structure of the different circuit components, the 4G amplification module 322, the WIFI communication module 33, the 4G WIFI conversion module 321 and the low-frequency signal receiving box 34 are sequentially arranged at the bottom of the accommodating space from top to bottom, and the structural design can improve the stability of the signal transceiver so as to be suitable for moving vehicles, such as motor homes, yachts and the like.

Above-mentioned circuit structure can also set up corresponding signal shielding structure according to its self signal characteristics, if low frequency signal receiving box 34 is shielded the outside wireless signal with tinplate, 4G changes WIFI module 321 and also can install the shielding shell.

As shown in fig. 3, the second antenna 22 is two cross inverted cone antennas, and is placed in an "xx" shape on the ground reflection plate 221, the distance between the celestial centers of the two cross inverted cones is 120mm, as shown in fig. 4, 5 and 6, the cross inverted cone antenna includes two U-shaped oscillators inserted in the upper and lower directions, which are respectively an upper U-shaped oscillator and a lower U-shaped oscillator, the curvatures of the two side edges of the U-shaped oscillator gradually increase from top to bottom, the lower U-shaped oscillator is provided with a first insertion slit 222 downwards in the middle of the upper portion, the upper U-shaped oscillator is provided with an upward second insertion slit 223 in the middle of the lower portion, the two U-shaped oscillators are inserted into each other through the two insertion slits, and the distance between the two insertion slit openings is 0.6 mm.

Two insets are the gaps of multistage different sizes, and the purpose is for full-band impedance matching, makes the standing-wave ratio be less than 1.5.

In the specific implementation process, as shown in fig. 4, 5 and 6, the radius of the upper part of two side edges of the U-shaped vibrator is 140mm, the radius of the lower part of the U-shaped vibrator is 111mm, and the thickness of the U-shaped vibrator is 0.4 mm.

Because the cost of manufacturing a large number of U-shaped vibrators and the stability of the two U-shaped vibrators which are mutually inserted are considered, the thickness of the U-shaped vibrators is designed to be 0.4mm and is 0.2mm smaller than the opening distance of the insertion slot which is 0.6mm, the thickness of the U-shaped vibrators is reduced relative to the opening distance of the insertion slot under the condition of controlling the cost, and a certain stability requirement can be met.

Referring to fig. 4, the 4G amplifying module 322 includes two combiners, a duplexer, a quadruplex, and a controller, the controller is electrically connected to the duplexer and the quadruplex, the output terminal of the same-frequency combiner is electrically connected to one of the combiners, and the combiner inputs the input signal to the duplexer and the quadruplex, and outputs the input signal through the other combiner.

In the specific implementation process, four duplexers in the 4G amplification module 322 are used for implementing signal transceiving of two close frequency bands of AWS2100 and PCS1900, the duplexers are used for implementing signal transceiving of an LTE700 frequency band, the three frequency bands respectively have two channels, one is used for signal uplink and the other is used for signal downlink, each channel is provided with a respective cavity channel, each channel is isolated by physical isolation, a zinc alloy die-casting integrated shell is used, two layers of isolation are arranged between the three frequency bands, two layers are arranged on two sides of the shell, and four layers are arranged in total, so that signals are further ensured not to cause interference to other components.

The 4G amplification module 322 can be connected to the indoor antenna through the interface 5, so as to amplify the 4G signal, and facilitate the user to receive the 4G signal indoors.

The same-frequency combiner is a patch 3db bridge in specific implementation, and the parameters are as follows:

(1) the working frequency is as follows: band1, Band2, Band3, Band4, Band5, Band7, Band8, Band12, Band13, Band14, Band17, Band 20;

(2) isolation degree: over 40 db;

(3) insertion loss: less than 0.5 db;

(4) standing-wave ratio: 1:1.5 or less;

(5) the circuit comprises 4 ports Pin1, Pin2, Pin3 and Pin4, wherein the impedance of the ports Pin1, Pin2 and Pin4 is 50 omega, and the impedance of the port Pin3 is 100 omega;

(6) the phase of the output signal of the Pin3 port is-90 degrees, and the phase of the output signal of the Pin2 port is +90 degrees;

(7) volume: 4mm 5mm 1.5 mm.

The Pin1 is a signal input port, the Pin2 is a signal output port connected with the combiner, the Pin3 is a signal output port connected with the 4G-to-WIFI module 321, the Pin4 is a load port and is only connected with a 50 omega load resistor

The shell of duplexer adopts the design of integration cavity, and the cavity is inside still to be equipped with the coating that can improve the electric conductivity, improves the electromagnetic shield coefficient of duplexer, avoids wherein the signal to spill, causes the interference to other devices, and its concrete parameter is:

(1) gain at the intersection of the upstream frequency response curve and the downstream frequency response curve of the duplexer: -20db or less;

(2) input power: more than 30 dbm;

(3) insertion loss: less than 3 db;

(4) standing-wave ratio: 1:1.5 or less;

(5) the impedance is 50 omega;

(6) average degree of suppression for other frequencies: over 45 db;

(7) volume: 2.5mm 2.0mm 0.8 mm.

The 4G signal processing module further comprises two microstrip lines, the two microstrip lines are used for respectively matching the input impedance of the 4G-to-WIFI module and the input impedance of the 4G amplification module with the impedance of two different output ends of the same-frequency combiner, and the parameters of one microstrip line are as follows:

(2) width: 0.6 mm;

(3) distance to PCB ground plane: 0.5 mm;

(4) PCB dielectric constant: 4.2;

(5) impedance: 50 ohms;

(6) thickness of copper sheet: 0.035 mm.

The parameters of the other microstrip line are as follows:

(2) width: 0.14 mm;

(3) distance to PCB ground plane: 1.5 mm;

(4) dielectric constant of PCB: 4.2;

(5) impedance: 100 ohms;

(6) thickness of copper sheet: 0.035 mm.

The combiner is a sound table combiner in the specific implementation process, and the specific parameters are as follows:

(2) input power: more than 30 dbm;

(3) insertion loss: 1.5db or less;

(4) standing-wave ratio: 1:1.5 or less;

(5) the impedance is 50 omega;

(6) out-of-band suppression: over 45 db;

(7) volume: 2.0mm 1.6mm 0.8 mm.

The positional relationships depicted in the above drawings are for illustrative purposes only and should not be construed as limiting the patent, it being understood that the above embodiments of the patent are merely illustrative for clarity of the patent and are not intended to specifically limit the patent claims. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the claims should be included in the protection scope of the claims.

Claims

1. A multiple-function signal transceiver comprising a housing and an antenna assembly and circuit assembly disposed within the housing, the antenna assembly comprising at least: the mobile terminal comprises a first antenna for receiving television signals, a second antenna for transceiving mobile communication signals and a third antenna for transceiving WIFI signals;

the circuit component at least comprises a 4G signal processing module which is electrically connected with the second antenna and the third antenna respectively;

the 4G signal processing module comprises a same-frequency combiner, a 4G-to-WIFI module and a 4G amplification module, the same-frequency combiner at least comprises one input end and two output ends, the input end is electrically connected with the second antenna, the two output ends are respectively and correspondingly and electrically connected with the 4G-to-WIFI module and the 4G amplification module, and the 4G-to-WIFI module is electrically connected with the third antenna;

the isolation degree of the same-frequency combiner is more than 40db, and two output ends are provided with different impedances;

the 4G amplifying module comprises two combiners, a duplexer, a quadruplex and a controller, wherein the controller is electrically connected with the duplexer and the quadruplex respectively, the output end of the same-frequency combiner is electrically connected with one of the combiners, and the combiner inputs signals into the duplexer and the quadruplex respectively and outputs the signals through the other combiner.

2. A multi-function signal transceiver as claimed in claim 1, wherein the gain at the crossover point between the upstream frequency response curve and the downstream frequency response curve of the diplexer is-20 db or less, and the average suppression degree for frequencies other than the operating frequency is 45db or more.

3. The multifunctional signal transceiver of claim 1, wherein said combiner has an out-of-band rejection of 45db or more and an insertion loss of 1.5db or less.

4. A multi-functional signal transceiver as defined in claim 1, wherein said second antenna is two cross-shaped inverted cone antennas and is disposed in a "xxx" configuration.

5. The multifunctional signal transceiver according to claim 4, wherein the crossed inverted cone antenna comprises two U-shaped vibrators which are inserted from top to bottom, and curvatures of two sides of each U-shaped vibrator are gradually increased from top to bottom.

6. The multifunctional signal transceiver of any one of claims 1 to 5, further comprising WIFI communication modules electrically connected to the first antenna and the third antenna, respectively.

7. A multifunctional signal transceiver as claimed in any one of claims 1 to 5, wherein the antenna assembly further comprises a fourth antenna for receiving VHF and/or DAB and/or FM/AM signals, the fourth antenna being disposed below the third antenna.