CN103401593A - Vertical polarization access device and diversity reception system of vertical polarization access device - Google Patents
Vertical polarization access device and diversity reception system of vertical polarization access device Download PDFInfo
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Abstract
The invention discloses a vertical polarization access device, which comprises a first duplexer, a second duplexer, a first common cavity, a second common cavity, an antenna port, a receiving/emitting port and a receiving port, wherein the first common cavity and the second common cavity are connected, the second common cavity is connected with a first emitting filter and a second emitting filter, the power splitting and the filtering of emitting signals can be realized, and then, an antenna is utilized, so the emitting signals subjected to power splitting can be overlapped into vertical polarization signals in the space. The signals subjected to the filtering by the first receiving filter are transmitted to a base station receiving and sending table through the first common cavity and the emitting/receiving port, the signals subjected to the filtering by the second receiving filter are transmitted to the base station receiving and sending table through the receiving port, and the diversity reception of the signals is completed by the base station receiving and sending table. The invention also discloses a diversity reception system. Through the structure, the realization scheme of the vertical polarization access device can be simplified, the size of the device is reduced, and meanwhile, the amplitude unbalance degree and the phase unbalance degree of the power splitting signals are reduced.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of perpendicular polarization access device and diversity system thereof.
Background technology
In mobile communication system, usually adopt ± 45 ° of cross polarised antennas, utilize its orthogonal polarization, to guarantee the effect of diversity reception.In some application scenarios, except needs guarantee diversity reception, also need to make transmitting of base station can be superimposed as in space the perpendicular polarization signal.
Realize the system applies block diagram of above-mentioned functions as shown in Figure 1, comprising: base transceiver station (BTS), perpendicular polarization access device, ± 45 ° of cross polarised antennas and cable.Wherein, the perpendicular polarization access device comprises that antenna port ANT1, ANT2, emission 1/ receive 1 port (TX1/RX1) and receive 2 ports (Receive2, RX2).Antenna port ANT1, ANT2 are connected with ± 45 ° of cross polarised antennas, and the TX1/RX1 port is connected with BTS with the RX2 port.
At first 1 port of the TX1/RX1 by the perpendicular polarization access device that transmits of BTS output enters the perpendicular polarization access device, this device 1 merit that will transmit is divided into two paths of signals (transmit 11 and transmit 12), then the two paths of signals that merit is divided accesses respectively ± one of 45 ° of cross polarised antennas, and make and transmit 11 and transmit and 12 be superimposed as the perpendicular polarization signal in space.Wherein, the prerequisite of perpendicular polarization signal formation be need to guarantee to transmit 11 identical with phase place with 12 the amplitude of transmitting.
Simultaneously, the perpendicular polarization access device also can access reception signals 1 and reception signal 2 that ± 45 ° of cross polarised antennas receive by its antenna port ANT1 and ANT2, and is transferred to BTS, the diversity reception of settling signal.
Wherein, the electrical length of two stube cables between perpendicular polarization access device and ± 45 ° of cross polarised antennas is identical.
Wherein, the operation principle block diagram of prior art perpendicular polarization access device as shown in Figure 2, comprising: duplexer 1, duplexer 2, duplexer 3, power splitter, cable 1, cable 2, cable 3, cable 4, ANT1 port, ANT2 port, TX1/RX1 port and RX2 port.Wherein, duplexer 1 comprises emission filter 1(TX1), receiving filter 1(RX1); Duplexer 2 comprises TX2 filter, RX2 filter; Duplexer 3 comprises TX3 filter, RX3 filter.
Perpendicular polarization access device specific works principle is, 1 from the TX1/RX1 port, enter from transmitting of BTS, TX3 filter and cable 3 through duplexer 3 enter power splitter, the 11 TX1 filters through cable 1 and duplexer 1 that transmit after merit is divided are from the output of ANT1 port, and the TX2 filter of transmit 12 process cables 2 and duplexer 2 is exported from the ANT2 port.In the situation that guarantee that transmitting of ± 45 ° of cross polarised antennas of access is 11 identical with phase place with 12 the amplitude of transmitting, transmitting 11 12 will be superimposed as in space the perpendicular polarization signal with transmitting.
In addition, the reception signal 1 that ± 45 ° of cross polarised antennas receive can be through the RX3 filter of the RX1 of duplexer 1 filter, cable 4 and duplexer 3, receive signal 2 and can enter the corresponding receiver of BTS through the RX2 of duplexer 2 filter, realize the diversity reception of signal.
But, the function of perpendicular polarization access device shown in Figure 2 needing to realize 3 duplexers, 1 power splitter and 4 cables, cause this device to connect complicated, debugging difficulty is large, phase place is difficult to control, and (for example: in the GSM900 frequency range, the length of cable 1 and cable 2 differs 0.9mm, and its phase difference just has 1 °, frequency is higher just higher to the poor requirement of two cable lengths), also have simultaneously that insertion loss is large, passive intermodulation is poor, the system standing-wave ratio is large, volume large, the high in cost of production shortcoming.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of perpendicular polarization access device and diversity system thereof, can reduce the volume of perpendicular polarization access device, simplify the implementation of perpendicular polarization access device, reduce simultaneously amplitude imbalance degree and the phase unbalance degree of merit sub-signal, and improve all other performance index.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of perpendicular polarization access device is provided, comprise: first duplexer, be used for the signal of emission or reception is carried out the filtering processing, first duplexer comprises the first emission filter and the first receiving filter; The second duplexer, be used for the signal of emission or reception is carried out the filtering processing, and the second duplexer comprises the second emission filter and the second receiving filter; First is total to chamber, with the first receiving filter, is connected; Second is total to chamber, and chamber, the first emission filter, the second emission filter are connected altogether with first respectively; Antenna port, antenna port comprise first day line cap and second day line cap, are used for connecting antenna, and wherein, the first day line cap is connected in first duplexer, and the second day line cap is connected in the second duplexer; Reception/emission port, be connected in first and be total to chamber, is used for connecting base transceiver station; Receiving port, be connected in the second receiving filter, is used for connecting base transceiver station; Wherein, the perpendicular polarization access device will receive from it/merit that transmits of emission port feed-in is divided, after filtering respectively from first day line cap and the output of second day line cap, the transmission path that transmits in the perpendicular polarization access device is total to chamber altogether, chamber, second for transmitting through first, then transfer to respectively the first emission filter, the second emission filter, to realize that the merit that transmits is divided, filtering.
Wherein, it is identical that the electrical connection and second of the second common chamber, the first emission filter and the formation of first day line cap is total to being connected electrically on topological structure of chamber, the second emission filter and the formation of second day line cap.
Wherein, it is identical that the electrical connection and second of the second common chamber, the first emission filter and the formation of first day line cap is total to being connected electrically on physical structure of chamber, the second emission filter and the formation of second day line cap.
Wherein, the first emission filter is identical with the frequency range of the second emission filter, is the transmit frequency band of first duplexer and the second duplexer.
Wherein, the first receiving filter is identical with the frequency range of the second receiving filter, is the reception frequency range of first duplexer and the second duplexer.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of diversity system is provided, comprises: antenna, perpendicular polarization access device, base transceiver station.
Antenna, be used for receiving and transmitting, and make the signal of its emission can be superimposed as in space the perpendicular polarization signal.
The perpendicular polarization access device, be connected with antenna, comprising: first duplexer, be used for the signal of emission or reception is carried out the filtering processing, and first duplexer comprises the first emission filter and the first receiving filter; The second duplexer, be used for the signal of emission or reception is carried out the filtering processing, and the second duplexer comprises the second emission filter and the second receiving filter; First is total to chamber, with the first receiving filter, is connected; Second is total to chamber, and chamber, the first emission filter, the second emission filter are connected altogether with first respectively; Antenna port, antenna port comprise first day line cap and second day line cap, are used for connecting antenna, and wherein, the first day line cap is connected in first duplexer, and the second day line cap is connected in the second duplexer; Reception/emission port, be connected in first and be total to chamber, is used for connecting base transceiver station; Receiving port, be connected in the second receiving filter, is used for connecting base transceiver station; Wherein, the perpendicular polarization access device will receive from it/merit that transmits of emission port feed-in is divided, after filtering respectively from first day line cap and the output of second day line cap, the transmission path that transmits in the perpendicular polarization access device is total to chamber altogether, chamber, second for transmitting through first, then transfer to respectively the first emission filter, the second emission filter, to realize that the merit that transmits is divided, filtering.
Base transceiver station, be connected with the perpendicular polarization access device, is used for receiving and transmitting, and realizes diversity reception.
Wherein, antenna is ± 45 ° of cross polarised antennas.
Wherein, the first day line cap of perpendicular polarization access device and second day line cap adopt the identical cable of electrical length to access respectively ± one of 45 ° of cross polarised antennas.
wherein, the step that diversity system makes signal can be superimposed as in space the perpendicular polarization signal comprises: the perpendicular polarization access device receives the signal of base transceiver station emission, and to transmitting, process, be specially from transmitting of reception/emission port feed-in and be total to chamber through first, second is total to chamber, transfer to respectively again the first emission filter, the second emission filter, divide to complete the merit that transmits, filtering, merit is divided, filtered signal is respectively by the first day line cap, the second day line cap is sent to antenna, utilize antenna performance, realization transmits and is superimposed as the perpendicular polarization signal in space.
Wherein, the step of diversity system diversity reception comprises: the signal that perpendicular polarization access device reception antenna receives, and it is processed, be specially the two paths of signals that first day line cap and second day line cap access respectively antenna reception, the signal of first day line cap access transfers to the first receiving filter, filtered signal transfers to first and is total to chamber, then by reception/emission port, is sent to base transceiver station; The signal of second day line cap access transfers to the second receiving filter, and filtered signal is sent to base transceiver station by receiving port, utilizes base transceiver station, realizes the diversity reception of the two paths of signals that antenna receives.
The invention has the beneficial effects as follows: the situation that is different from prior art, perpendicular polarization access device of the present invention contains first and is total to chamber altogether, chamber and second, first is total to chamber and second is connected in chamber altogether, second is total to chamber is connected with the first emission filter, the second emission filter respectively again, the merit that realization transmits is divided, filtering, then utilize antenna, transmitting after merit is divided can be superimposed as in space the perpendicular polarization signal.The first filtered signal of receiving filter of first duplexer is total to chamber, transmitting/receiving port transmission to base transceiver station through first, the second filtered signal of receiving filter of the second duplexer transfers to base transceiver station through receiving port, and by the diversity reception of base transceiver station settling signal.By said structure, the present invention can reduce the volume of perpendicular polarization access device, simplifies the implementation of perpendicular polarization access device, reduces simultaneously amplitude imbalance degree and the phase unbalance degree of merit sub-signal, and improves all other performance index.
Description of drawings
Fig. 1 is background technology system applies block diagram;
Fig. 2 is prior art perpendicular polarization access device operation principle block diagram;
Fig. 3 is the structural representation of perpendicular polarization access device one embodiment of the present invention;
Fig. 4 is the structural representation of diversity system one embodiment of the present invention.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
See also Fig. 3, an embodiment of perpendicular polarization access device of the present invention comprises: first duplexer, the second duplexer, first chamber, second altogether are total to chamber, antenna port, reception/emission port and receiving port.Connected mode and the function of each part mentioned above are as follows:
First duplexer is used for that emission or the signal that receives are carried out filtering to be processed, and first duplexer comprises the first emission filter (TX1) and the first receiving filter (RX1), is respectively used to isolate transmit and receive signal;
The second duplexer is used for that emission or the signal that receives are carried out filtering to be processed, and the second duplexer comprises the second emission filter (TX2) and the second receiving filter (RX2), is respectively used to isolate transmit and receive signal;
First is total to chamber is connected with the first receiving filter;
Second is total to chamber, and chamber, the first emission filter, the second emission filter are connected altogether with first respectively;
Antenna port comprises first day line cap (ANT1) and second day line cap (ANT2), is used for connecting antenna; Wherein, the first day line cap is connected in first duplexer, and the second day line cap is connected in the second duplexer;
Reception/emission port (TX1/RX1) is connected in first and is total to chamber, is used for connecting base transceiver station;
Receiving port (RX2) is connected in the second receiving filter, is used for connecting base transceiver station.
In the present embodiment, the first emission filter is identical with the second emission filter frequency range, is the transmit frequency band of first duplexer and the second duplexer; The first receiving filter is identical with the frequency range of the second receiving filter, is the reception frequency range of first duplexer and the second duplexer.
In the present embodiment, first is total to chamber is connected to the TX1/RX1 port with corresponding filter easily, has reduced the complexity of port design; Second is total to chamber has easily realized the Merit Citation Class II that transmits is divided in conjunction with TX1 filter and TX2 filter especially, and simultaneously, TX1 filter and TX2 filter can carry out filtering and sufficiently high transmitting-receiving isolation is provided to transmitting.RX1 filter and RX2 filter can carry out to received signal filtering and sufficiently high transmitting-receiving isolation is provided, thereby reach the purpose of diversity reception.
In the present embodiment, it is identical that the electrical connection and second of the second common chamber, the first emission filter and the formation of first day line cap is total to being connected electrically on topological structure of chamber, the second emission filter and the formation of second day line cap.
Further, it is identical that the electrical connection and second of the second common chamber, the first emission filter and the formation of first day line cap is total to being connected electrically on physical structure of chamber, the second emission filter and the formation of second day line cap.
See also Fig. 4, an embodiment of diversity system of the present invention comprises: antenna 41, perpendicular polarization access device 42 and base transceiver station 43.
Wherein, antenna 41 is used for receiving and transmitting, and makes the signal of its emission can be superimposed as in space the perpendicular polarization signal.
Wherein, perpendicular polarization access device 42 is connected with antenna 41, and its structure is identical with perpendicular polarization access device shown in Figure 3, does not repeat them here.
Wherein, base transceiver station 43 is connected with perpendicular polarization access device 42, is used for receiving and transmitting, and realizes diversity reception.
In the present embodiment, system adopts ± 45 ° of cross polarised antennas.And first day line cap and second day line cap adopt the identical cable of electrical length to access respectively ± one of 45 ° of cross polarised antennas.
The diversity system of the present embodiment has two functions, and one for the signal that makes base transceiver station 43 emissions can be superimposed as in space the perpendicular polarization signal, and two for can realize diversity reception.
wherein, the step that diversity system makes signal can be superimposed as in space the perpendicular polarization signal comprises: perpendicular polarization access device 42 receives the signal of base transceiver station 43 emissions, and to transmitting, process, be specially from transmitting of reception/emission port feed-in and be total to chamber through first, second is total to chamber, transfer to respectively again the first emission filter, the second emission filter, divide to complete the merit that transmits, filtering, then merit is divided, filtered signal is respectively by the first day line cap, the second day line cap is sent to antenna 41, utilize antenna 41 characteristics, realization transmits and is superimposed as the perpendicular polarization signal in space.
The step of diversity system diversity reception comprises: the signal that perpendicular polarization access device 42 reception antennas 41 receive, and it is processed, be specially first day line cap and second day line cap and access respectively the two paths of signals that antenna 41 receives, the signal of first day line cap access transfers to the first receiving filter, filtered signal transfers to first again and is total to chamber, then by reception/emission port, is sent to base transceiver station 43; The signal of second day line cap access transfers to the second receiving filter, and filtered signal is sent to base transceiver station 43 by receiving port, utilizes base transceiver station 43, realizes the diversity reception of the two paths of signals that antenna 41 receives.
In the present embodiment, for guaranteeing that two ± 45 ° cross polarization signals can be superimposed as in space the perpendicular polarization signal, except the electrical length of two cables that guarantee to connect the ANT1 port of antenna 41 with perpendicular polarization access device 42, ANT2 port is identical, also must guarantee that the amplitude that transmits after the merit that the ANT1 of perpendicular polarization access device 42 port, ANT2 port obtain is respectively divided is identical with phase place, this requirement is embodied on amplitude imbalance degree and two indexs of phase unbalance degree.
Wherein, the amplitude imbalance degree refers to transmitting and transmitting in the maximum of the absolute value of the amplitude difference of corresponding frequency after the merit that obtains at the ANT2 port is divided after the merit that the ANT1 port obtains is divided; Phase unbalance degree refers to transmitting and transmitting in the maximum of the absolute value of the phase difference of corresponding frequency after the merit that obtains at the ANT2 port is divided after the merit that the ANT1 port obtains is divided.
For realizing lower phase unbalance degree and amplitude imbalance degree, of the present invention being designed to, the signal that makes base transceiver station 43 emission in perpendicular polarization access device 42 the path of process identical, be specially that chamber is identical on topological structure to ANT1 port, ANT2 port respectively altogether from second.More preferably, transmit identical through the physical structure in path.By above-mentioned design, phase unbalance degree and amplitude imbalance degree can be guaranteed simultaneously.
In the present embodiment, the phase unbalance degree of perpendicular polarization access device 42 can accomplish≤2 °, consider the impact that distributes loss fluctuation, the amplitude imbalance degree can be accomplished≤0.2dB.
Compared with prior art, perpendicular polarization access device 42 provided by the invention, utilize chamber technology altogether that merit is divided with filter function and united two into one, save in prior art perpendicular polarization access device power splitter, cable 1-4 and duplexer 3(as shown in Figure 2).Perpendicular polarization access device 42 of the present invention is except distributing loss, and the insertion loss of each path only has the insertion loss of respective filter, simultaneously, utilizes and is total to the advantage that the chamber technology is convenient to debug, and its amplitude imbalance degree and phase unbalance degree are all easily transferred easily control.In addition,, because the implementation of this device has been avoided complicated connection, can significantly reduce device volume, reduce costs, be suitable for producing in enormous quantities.Simultaneously, also can improve multinomial important indicator, as improve that rear system standing-wave ratio is little, insertion loss is little, passive intermodulation is low, interport isolation is high, power capacity is large etc.
In sum, perpendicular polarization access device of the present invention contains first and is total to chamber altogether, chamber and second, first is total to chamber and second is connected in chamber altogether, second is total to chamber is connected with the first emission filter, the second emission filter respectively again, the merit that realization transmits is divided, filtering, then utilize antenna, transmitting after merit is divided can be superimposed as in space the perpendicular polarization signal.The first filtered signal of receiving filter of first duplexer is total to chamber, transmitting/receiving port transmission to base transceiver station through first, the second filtered signal of receiving filter of the second duplexer transfers to base transceiver station through receiving port, and by the diversity reception of base transceiver station settling signal.By said structure, the present invention can reduce the volume of perpendicular polarization access device, simplifies the implementation of perpendicular polarization access device, reduces simultaneously amplitude imbalance degree and the phase unbalance degree of merit sub-signal, and improves all other performance index.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (9)
1. a perpendicular polarization access device, is characterized in that, comprising:
First duplexer, be used for the signal of emission or reception is carried out the filtering processing, and described first duplexer comprises the first emission filter and the first receiving filter;
The second duplexer, be used for the signal of emission or reception is carried out the filtering processing, and described the second duplexer comprises the second emission filter and the second receiving filter;
First is total to chamber, with described the first receiving filter, is connected;
Second is total to chamber, and chamber, the first emission filter, the second emission filter are connected altogether with described first respectively;
Antenna port, described antenna port comprise first day line cap and second day line cap, are used for connecting antenna, and wherein, described first day line cap is connected in first duplexer, and described second day line cap is connected in the second duplexer;
Reception/emission port, be connected in described first and be total to chamber, is used for connecting base transceiver station;
Receiving port, be connected in described the second receiving filter, is used for connecting base transceiver station;
Wherein, described perpendicular polarization access device will receive from it/merit that transmits of emission port feed-in is divided, after filtering respectively from first day line cap and the output of second day line cap, the described transmission path that transmits in the perpendicular polarization access device is total to chamber altogether, chamber, second for transmitting through described first, then transfer to respectively the first emission filter, the second emission filter, to realize that the merit that transmits is divided, filtering.
2. perpendicular polarization access device according to claim 1, it is characterized in that, it is identical that the described second electrical connection and described second that is total to chamber, the first emission filter and the formation of first day line cap is total to being connected electrically on topological structure of chamber, the second emission filter and the formation of second day line cap.
3. perpendicular polarization access device according to claim 2, it is characterized in that, it is identical that the described second electrical connection and described second that is total to chamber, the first emission filter and the formation of first day line cap is total to being connected electrically on physical structure of chamber, the second emission filter and the formation of second day line cap.
4. perpendicular polarization access device according to claim 3, is characterized in that, described the first emission filter is identical with the frequency range of the second emission filter, is the transmit frequency band of described first duplexer and the second duplexer.
5. perpendicular polarization access device according to claim 4, is characterized in that, described the first receiving filter is identical with the frequency range of the second receiving filter, is the reception frequency range of described first duplexer and the second duplexer.
6. a diversity system, is characterized in that, comprising:
Antenna, be used for receiving and transmitting, and make the signal of its emission can be superimposed as in space the perpendicular polarization signal;
The perpendicular polarization access device, be connected with described antenna, comprising: first duplexer, be used for the signal of emission or reception is carried out the filtering processing, and described first duplexer comprises the first emission filter and the first receiving filter; The second duplexer, be used for the signal of emission or reception is carried out the filtering processing, and described the second duplexer comprises the second emission filter and the second receiving filter; First is total to chamber, with described the first receiving filter, is connected; Second is total to chamber, and chamber, the first emission filter, the second emission filter are connected altogether with described first respectively; Antenna port, described antenna port comprise first day line cap and second day line cap, are used for connecting antenna, and wherein, described first day line cap is connected in first duplexer, and described second day line cap is connected in the second duplexer; Reception/emission port, be connected in described first and be total to chamber, is used for connecting base transceiver station; Receiving port, be connected in described the second receiving filter, is used for connecting base transceiver station; Wherein, described perpendicular polarization access device will receive from it/merit that transmits of emission port feed-in is divided, after filtering respectively from first day line cap and the output of second day line cap, the described transmission path that transmits in the perpendicular polarization access device is total to chamber altogether, chamber, second for transmitting through described first, then transfer to respectively the first emission filter, the second emission filter, to realize that the merit that transmits is divided, filtering;
Base transceiver station, be connected with described perpendicular polarization access device, is used for receiving and transmitting, and realizes diversity reception.
7. diversity system according to claim 6, is characterized in that, described antenna is ± 45 ° of cross polarised antennas.
8. diversity system according to claim 7, is characterized in that, the first day line cap of described perpendicular polarization access device and second day line cap adopt the identical cable of electrical length to access respectively ± one of 45 ° of cross polarised antennas.
9. diversity system according to claim 8, is characterized in that, the step that described diversity system makes signal be superimposed as the perpendicular polarization signal in space comprises:
Described perpendicular polarization access device receives the signal of described base transceiver station emission, and described transmitting processed, be specially from transmitting of described reception/emission port feed-in and be total to chamber altogether, chamber, second through described first, transfer to respectively more described the first emission filter, the second emission filter, the merit that transmits is divided to complete, filtering, with merit divide, filtered signal is sent to described antenna by first day line cap, second day line cap respectively, utilize described antenna performance, realize that described transmitting is superimposed as the perpendicular polarization signal in space;
The step of described diversity system diversity reception comprises:
Described perpendicular polarization access device receives the signal of described antenna reception, and it is processed, be specially the two paths of signals that described first day line cap and second day line cap access respectively antenna reception, the signal of described first day line cap access transfers to the first receiving filter, filtered signal transfers to first and is total to chamber, then by described reception/emission port, is sent to base transceiver station; The signal of described second day line cap access transfers to the second receiving filter, and filtered signal is sent to base transceiver station by described receiving port, utilizes base transceiver station, realizes the diversity reception of the two paths of signals that described antenna receives.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105429649A (en) * | 2015-12-31 | 2016-03-23 | 京信通信技术(广州)有限公司 | Double-mode transceiver |
| CN106911355A (en) * | 2017-03-03 | 2017-06-30 | 上海华为技术有限公司 | A kind of signal transmitting apparatus, signal transmission system and method |
| WO2017121290A1 (en) | 2016-01-11 | 2017-07-20 | Huawei Technologies Co., Ltd. | Integrated duplexer and combiner |
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| CN103022691A (en) * | 2012-11-14 | 2013-04-03 | 广东隆伏通讯设备有限公司 | Novel communication-in-motion low-profile planar antenna system |
| CN203416259U (en) * | 2013-07-05 | 2014-01-29 | 京信通信技术(广州)有限公司 | Vertical polarization access device and diversity reception system thereof |
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| CN103022691A (en) * | 2012-11-14 | 2013-04-03 | 广东隆伏通讯设备有限公司 | Novel communication-in-motion low-profile planar antenna system |
| CN203416259U (en) * | 2013-07-05 | 2014-01-29 | 京信通信技术(广州)有限公司 | Vertical polarization access device and diversity reception system thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429649A (en) * | 2015-12-31 | 2016-03-23 | 京信通信技术(广州)有限公司 | Double-mode transceiver |
| WO2017121290A1 (en) | 2016-01-11 | 2017-07-20 | Huawei Technologies Co., Ltd. | Integrated duplexer and combiner |
| CN108432050A (en) * | 2016-01-11 | 2018-08-21 | 华为技术有限公司 | Integrated duplexer and combiner |
| EP3387707A4 (en) * | 2016-01-11 | 2018-12-26 | Huawei Technologies Co., Ltd. | Integrated duplexer and combiner |
| CN108432050B (en) * | 2016-01-11 | 2020-06-26 | 华为技术有限公司 | Integrated duplexer and combiner |
| CN106911355A (en) * | 2017-03-03 | 2017-06-30 | 上海华为技术有限公司 | A kind of signal transmitting apparatus, signal transmission system and method |
| CN106911355B (en) * | 2017-03-03 | 2019-06-18 | 上海华为技术有限公司 | A kind of signal transmitting apparatus, signal transmission system and method |
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|---|---|
| CN103401593B (en) | 2016-05-04 |
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