CN203872167U - Millimeter wave integrated transmit-receive channel - Google Patents
Millimeter wave integrated transmit-receive channel Download PDFInfo
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- CN203872167U CN203872167U CN201420276526.8U CN201420276526U CN203872167U CN 203872167 U CN203872167 U CN 203872167U CN 201420276526 U CN201420276526 U CN 201420276526U CN 203872167 U CN203872167 U CN 203872167U
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Abstract
Provided is a millimeter wave integrated transmit-receive channel, formed by a Ka waveband up-conversion channel, a Ka frequency band switch module, a local oscillator module, and a Ka waveband down-conversion channel. The transmit-receive channel realizes low stray and low group delay fluctuation output of 26-32 GHz signals. The transmit-receive channel has both characteristics of integrated transmitting-receiving and miniaturization, and can perform switchover on a detection mode/reception mode. The transmit-receive channel can satisfy requirements of various millimeter wave measurement and control systems, and can be configured flexibly according to actual needs.
Description
Technical field
The utility model relates to a kind of millimeter wave transceiving integrated small channel, belongs to millimetre-wave circuit technical field.
Background technology
Along with the development of near space and satellite communication and the application of new technology, TT&C system is used frequency range from S frequency range, to develop into millimere-wave band, and Ka frequency range measuring and controlling equipment has become the research emphasis of various countries.Increasing high accuracy Ka frequency range ground observing and controlling system, to having higher requirement of millimeter wave channel.Current domestic millimeter wave channel function singleness often, receive channel with launch channel and separate design, volume is unfavorable for more greatly the system integration, and the index such as spuious, Group Delay Ripple is not very desirable, is difficult to meet high accuracy observing and controlling occasion.
Utility model content
The problem that the utility model solves is: overcome the deficiencies in the prior art, a kind of millimeter wave integration transceiver channel is provided, realized low spuious, low group delay, transceiving integrated miniaturization millimeter wave channel, possess the features such as low spuious, low Group Delay Ripple.
Technical solution of the present utility model is:
A kind of millimeter wave integration transceiver channel comprises: Ka wave band up-convert channel, Ka frequency range switch module, local oscillator module, Ka frequency range down-conversion channel; Ka wave band up-convert channel comprises again filter 1, filter 2, filter 3, frequency mixer 1, frequency mixer 2, frequency mixer 3; Ka frequency range switch module comprises again filter 4, filter 5, waveguide switch A; Local oscillator module comprises again local vibration source 1, local vibration source 2, local vibration source 3, power splitter 1, power splitter 2, power splitter 3, local oscillator frequency multiplier; Ka frequency range down-conversion channel comprises again frequency mixer 4, frequency mixer 5, frequency mixer 6, filter 6, filter 7, filter 8;
The input of filter 1 receives the input signal that outside need carries out up-conversion, and output connects the input of frequency mixer 1;
Frequency mixer 1 has two inputs, and one of them input is connected with the output of filter 1 and receives the input signal for up-conversion, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 1; The output of frequency mixer 1 is connected with the input of filter 2;
Signal after the output of filter 2 is processed filtering outputs to the input of frequency mixer 2;
Frequency mixer 2 has two inputs, and one of them input is connected with the output of filter 2 and receives the radiofrequency signal for secondary up-conversion, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 2; The output of frequency mixer 2 is connected with the input of filter 3;
Signal after the output of filter 3 is processed filtering outputs to the input of frequency mixer 3;
Frequency mixer 3 has two inputs, and one of them input is connected with the output of filter 3 and receives the radiofrequency signal for three up-conversions, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 3; The output of frequency mixer 3 is connected with the input of filter 4 in Ka frequency range switch module;
Filter 4 has two outputs, and one of them output is launched the signal after frequency conversion, and another one output is connected with the input of waveguide switch A;
Waveguide switch A has two inputs, and one of them input is connected with the output of filter 4, and another one input is connected with outside radio-frequency input signals; Waveguide switch A has two outputs, and one of them output is connected with matched load, and another one output is connected with the input of filter 5;
The output of filter 5 is connected with the input of the frequency mixer 4 of Ka frequency range down-conversion channel;
Frequency mixer 4 has two inputs, and one of them input is connected with the output of filter 5 and receives the radio-frequency input signals for down-conversion, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 3; The output of frequency mixer 4 is connected with the input of filter 6;
Signal after the output of filter 6 is processed filtering outputs to the input of frequency mixer 5;
Frequency mixer 5 has two inputs, and one of them input is connected with the output of filter 6 and receives the radiofrequency signal for secondary down-conversion, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 2; The output of frequency mixer 5 is connected with the input of filter 7;
Signal after the output of filter 7 is processed filtering outputs to the input of frequency mixer 6;
Frequency mixer 6 has two inputs, and one of them input is connected with the output of filter 7 and receives the radiofrequency signal for three down-conversions, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 1; The output of frequency mixer 6 is connected with the input of filter 8;
Intermediate-freuqncy signal output after the output of filter 7 is processed filtering;
The output of local vibration source 1 is connected with the input of power splitter 1; Power splitter 1 has two outputs, and one of them output is connected with frequency mixer 1, and another one output is connected with frequency mixer 6;
The output of local vibration source 2 is connected with the input of power splitter 2; Power splitter 2 has two outputs, and one of them output is connected with frequency mixer 2, and another one output is connected with frequency mixer 5;
The output of local vibration source 3 is connected with the input of this vibration magnifier, and the output of local oscillator frequency multiplier is connected with the input of power splitter 3; Power splitter 3 has two outputs, and one of them output is connected with frequency mixer 3, and another one output is connected with frequency mixer 4.
Described Ka wave band up-convert channel, Ka frequency range switch module, local oscillator module, Ka frequency range down-conversion channel are integrated in same microwave structure.
Described filter 1 adopts LFCN-225, filter 2 to adopt 6MB/C-890/U24-S5, filter 3 to adopt BP6700-480-CS, filter 4 to adopt HD-320WBPF, filter 5 to adopt HD-320WBPF, filter 6 to adopt BP6700-480-CS, filter 7 to adopt 6MB/C-890/U24-S5, filter 8 to adopt LFCN-225.
Described frequency mixer 1 adopts HMC208MS8, frequency mixer 2 to adopt HMC220MS8, frequency mixer 3 to adopt HMC329LC3B, frequency mixer 4 to adopt HMC329LC3B, frequency mixer 5 to adopt HMC220MS8, frequency mixer 6 to adopt HMC208MS8.
Described waveguide switch adopts AHD-320WESMD.
Described local vibration source 1 output frequency is that 20GHz, local vibration source 2 output frequencies are that 6500-6900MHz, local vibration source 3 output frequencies are 820MHz.
Described power splitter 1 adopts ADP-2-1, power splitter 2 to adopt microstrip power divider, power splitter 3 microstrip power dividers.
Described local oscillator frequency multiplier adopts HMC448LC3B.
The utility model beneficial effect is compared with prior art:
(1) the utility model is by being integrated in Ka wave band up-convert channel, Ka frequency range switch module, local oscillator module, Ka frequency range down-conversion channel on same circuit board, and configured Ka frequency range switch, pass through switching over, can realize self-checking function, improve the flexibility of system configuration, realized low spuious, low group delay, transceiving integrated miniaturization millimeter wave channel; The utility model can cover the frequency range of 26-32GHz simultaneously, compared to existing technology, has expanded applying frequency scope, can adapt to the demand of various Ka frequency range application.Possess the features such as transceiving integrated, miniaturization, low spuious, low Group Delay Ripple
(2) the utility model adopts three converter techniques, and for possible spurious signal and local oscillator leakage at corresponding position configuration filter, successfully suppress the intrinsic local oscillator 1+1+1 mode combinations frequency of up-converter system, can realize the index of spuious in full bandwidth≤-70dBm.
(3) the utility model is for group delay index optimization design, by filter, frequency mixer, frequency multiplier, realized delay equalization, and to systematic group time delay most critical device--group delay and the Out-of-band rejection index of filter are carried out rational balance choice, can realize the index of system Group Delay Ripple≤4ns, meet the requirement of existing millimeter wave high accuracy observing and controlling.
(4) the utility model is realized Miniaturization Design, compares existing product, the various applied environment of flexible adaptation more, and versatility is stronger, and reliability is higher, and holistic cost is lower.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described in detail.
A kind of millimeter wave transceiving integrated small of the present invention channel comprises Ka wave band up-convert channel, Ka frequency range switch module, local oscillator module, Ka frequency range down-conversion channel; Wherein Ka frequency range up-convert channel is realized the upconversion function transmitting, and Ka frequency range down-conversion channel is realized the lower frequent function to Ka frequency band signals, and the two frequency relation is reciprocal, shares local oscillator.Local oscillator and local oscillator provide the local oscillation signal that power equates, frequency spectrum is pure along separate routes, after shunt, send channel mixer.Ka frequency range switch can be realized the switching of Ka frequency range down-conversion channel to the detecting pattern/receiving mode that transmits.
Ka frequency range up-convert channel and Ka frequency range down-conversion channel are realized respectively up-conversion and the down-conversion of Ka frequency band signals, and the two all adopts frequency conversion scheme three times, share local oscillator, frequency reciprocity.Three frequency conversion schemes can guarantee to drop in band without low order combination frequency at Ka frequency range Broadband emission, coordinate the configuration of filters at different levels in channel, can effectively suppress the intrinsic local oscillator 1+1+1 mode combinations frequency of up-converter system, realize the index of spuious≤-70dBm.
Local oscillator and local oscillator divide route three tunnel local oscillators and corresponding splitter to form, and major function is to provide for each channel mixer the local oscillation signal that power equates, frequency spectrum is pure.Wherein the high local oscillator of Third Road adopts the scheme that in Ku frequency range frequency multiplication and channel, fundamental wave mixing device is used in conjunction with, and can provide and have higher IP3, and combination frequency is carried out to enough inhibition, has good phase place and delay character.The at present conventional harmonic mixing method that compares, has combination frequency and the phase place of output signal is produced to the problem of disturbance, and its phase place and delay character are poor, cannot meet current high-acruracy survey requirement.
The major function of Ka frequency range switch is the switching of implementation pattern.When switching gate is that Ka frequency range up-convert channel output coupled end is Auto-Sensing Mode during to Ka frequency range down-conversion channel input, under this pattern, can realize the closed loop self check transmitting.When switching gate is that RF_IN is receiving mode while holding to Ka frequency range down-conversion channel input, under this pattern, can realize the reception of Ka frequency band signals and down-conversion.
As shown in Figure 1, Ka wave band up-convert channel comprises again filter 1, filter 2, filter 3, frequency mixer 1, frequency mixer 2, frequency mixer 3; Ka frequency range switch module comprises again filter 4, filter 5, waveguide switch A; Local oscillator module comprises again local vibration source 1, local vibration source 2, local vibration source 3, power splitter 1, power splitter 2, power splitter 3, local oscillator frequency multiplier; Ka frequency range down-conversion channel comprises again frequency mixer 4, frequency mixer 5, frequency mixer 6, filter 6, filter 7, filter 8;
The input of filter 1 receives the input signal that outside need carries out up-conversion, and output connects the input of frequency mixer 1;
Frequency mixer 1 has two inputs, and one of them input is connected with the output of filter 1 and receives the input signal for up-conversion, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 1; The output of frequency mixer 1 is connected with the input of filter 2;
Signal after the output of filter 2 is processed filtering outputs to the input of frequency mixer 2;
Frequency mixer 2 has two inputs, and one of them input is connected with the output of filter 2 and receives the radiofrequency signal for secondary up-conversion, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 2; The output of frequency mixer 2 is connected with the input of filter 3;
Signal after the output of filter 3 is processed filtering outputs to the input of frequency mixer 3;
Frequency mixer 3 has two inputs, and one of them input is connected with the output of filter 3 and receives the radiofrequency signal for three up-conversions, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 3; The output of frequency mixer 3 is connected with the input of filter 4 in Ka frequency range switch module;
Filter 4 has two outputs, and one of them output is launched the signal after frequency conversion, and another one output is connected with the input of waveguide switch A;
Waveguide switch A has two inputs, and one of them input is connected with the output of filter 4, and another one input is connected with outside radio-frequency input signals; Waveguide switch A has two outputs, and one of them output is connected with matched load, and another one output is connected with the input of filter 5;
The output of filter 5 is connected with the input of the frequency mixer 4 of Ka frequency range down-conversion channel;
Frequency mixer 4 has two inputs, and one of them input is connected with the output of filter 5 and receives the radio-frequency input signals for down-conversion, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 3; The output of frequency mixer 4 is connected with the input of filter 6;
Signal after the output of filter 6 is processed filtering outputs to the input of frequency mixer 5;
Frequency mixer 5 has two inputs, and one of them input is connected with the output of filter 6 and receives the radiofrequency signal for secondary down-conversion, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 2; The output of frequency mixer 5 is connected with the input of filter 7;
Signal after the output of filter 7 is processed filtering outputs to the input of frequency mixer 6;
Frequency mixer 6 has two inputs, and one of them input is connected with the output of filter 7 and receives the radiofrequency signal for three down-conversions, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 1; The output of frequency mixer 6 is connected with the input of filter 8;
Intermediate-freuqncy signal output after the output of filter 7 is processed filtering;
The output of local vibration source 1 is connected with the input of power splitter 1; Power splitter 1 has two outputs, and one of them output is connected with frequency mixer 1, and another one output is connected with frequency mixer 6;
The output of local vibration source 2 is connected with the input of power splitter 2; Power splitter 2 has two outputs, and one of them output is connected with frequency mixer 2, and another one output is connected with frequency mixer 5;
The output of local vibration source 3 is connected with the input of this vibration magnifier, and the output of this vibration magnifier is connected with the input of power splitter 3; Power splitter 3 has two outputs, and one of them output is connected with frequency mixer 3, and another one output is connected with frequency mixer 4.
Ka wave band up-convert channel, Ka frequency range switch module, local oscillator module, Ka frequency range down-conversion channel are integrated in same microwave structure.
Filter 1 adopts LFCN-225, filter 2 to adopt 6MB/C-890/U24-S5, filter 3 to adopt BP6700-480-CS, filter 4 to adopt HD-320WBPF, filter 5 to adopt HD-320WBPF, filter 6 to adopt BP6700-480-CS, filter 7 to adopt 6MB/C-890/U24-S5, filter 8 to adopt LFCN-225.
Frequency mixer 1 adopts HMC208MS8, frequency mixer 2 to adopt HMC220MS8, frequency mixer 3 to adopt HMC329LC3B, frequency mixer 4 to adopt HMC329LC3B, frequency mixer 5 to adopt HMC220MS8, frequency mixer 6 to adopt HMC208MS8.
Waveguide switch adopts AHD-320WESMD.
Local vibration source 1 output frequency is that 20GHz, local vibration source 2 output frequencies are that 6500-6900MHz, local vibration source 3 output frequencies are 820MHz.
Power splitter 1 adopts ADP-2-1, power splitter 2 to adopt microstrip power divider, power splitter 3 microstrip power dividers.
Local oscillator frequency multiplier adopts HMC448LC3B.
By above embodiment, the present invention finally can realize in the frequency range of 26-32GHz, spuious≤-70dBm, the index of Group Delay Ripple≤4ns, and there is feature transceiving integrated, miniaturization, can meet the needs of all kinds of millimeter wave TT&C system, and flexible configuration according to actual needs.Concrete effect is as shown in table 1:
Table 1 effect signal of the present invention table
| ? | Existing product | The utility model |
| Up-conversion part | ? | ? |
| Frequency | 30.5～32GHz | 26～32GHz |
| Gain | ≥30dB | ≥30dB |
| Gain flatness | ±1dB/±10MHz | ±0.5dB/±10MHz |
| Group delay linear change | ≤15ns | ≤4ns |
| Clutter suppresses | ≥60dBc | ≥70dBc |
| Down-conversion part | ? | ? |
| Frequency | 26～28.5GHz | 26～32GHz |
| Gain | ≥30dB | ≥30dB |
| Gain flatness | ±1dB/±10MHz | ±0.5dB/±10MHz |
| Group delay linear change | ≤15ns | ≤4ns |
| Clutter suppresses | ≥60dBc | ≥70dBc |
The present invention has passed through expert evaluation, and in the corresponding space flight model being applied to, respond well.
In the present invention, unspecified part belongs to general knowledge as well known to those skilled in the art.
Claims (8)
1. a millimeter wave integration transceiver channel, is characterized in that comprising: Ka wave band up-convert channel, Ka frequency range switch module, local oscillator module, Ka frequency range down-conversion channel; Ka wave band up-convert channel comprises again filter 1, filter 2, filter 3, frequency mixer 1, frequency mixer 2, frequency mixer 3; Ka frequency range switch module comprises again filter 4, filter 5, waveguide switch A; Local oscillator module comprises again local vibration source 1, local vibration source 2, local vibration source 3, power splitter 1, power splitter 2, power splitter 3, local oscillator frequency multiplier; Ka frequency range down-conversion channel comprises again frequency mixer 4, frequency mixer 5, frequency mixer 6, filter 6, filter 7, filter 8;
The input of filter 1 receives the input signal that outside need carries out up-conversion, and output connects the input of frequency mixer 1;
Frequency mixer 1 has two inputs, and one of them input is connected with the output of filter 1 and receives the input signal for up-conversion, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 1; The output of frequency mixer 1 is connected with the input of filter 2;
Signal after the output of filter 2 is processed filtering outputs to the input of frequency mixer 2;
Frequency mixer 2 has two inputs, and one of them input is connected with the output of filter 2 and receives the radiofrequency signal for secondary up-conversion, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 2; The output of frequency mixer 2 is connected with the input of filter 3;
Signal after the output of filter 3 is processed filtering outputs to the input of frequency mixer 3;
Frequency mixer 3 has two inputs, and one of them input is connected with the output of filter 3 and receives the radiofrequency signal for three up-conversions, and another one input is connected and receives the local oscillation signal of up-conversion with the output of power splitter 3; The output of frequency mixer 3 is connected with the input of filter 4 in Ka frequency range switch module;
Filter 4 has two outputs, and one of them output is launched the signal after frequency conversion, and another one output is connected with the input of waveguide switch A;
Waveguide switch A has two inputs, and one of them input is connected with the output of filter 4, and another one input is connected with outside radio-frequency input signals; Waveguide switch A has two outputs, and one of them output is connected with matched load, and another one output is connected with the input of filter 5;
The output of filter 5 is connected with the input of the frequency mixer 4 of Ka frequency range down-conversion channel;
Frequency mixer 4 has two inputs, and one of them input is connected with the output of filter 5 and receives the radio-frequency input signals for down-conversion, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 3; The output of frequency mixer 4 is connected with the input of filter 6;
Signal after the output of filter 6 is processed filtering outputs to the input of frequency mixer 5;
Frequency mixer 5 has two inputs, and one of them input is connected with the output of filter 6 and receives the radiofrequency signal for secondary down-conversion, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 2; The output of frequency mixer 5 is connected with the input of filter 7;
Signal after the output of filter 7 is processed filtering outputs to the input of frequency mixer 6;
Frequency mixer 6 has two inputs, and one of them input is connected with the output of filter 7 and receives the radiofrequency signal for three down-conversions, and another one input is connected and accepts frequency conversion local oscillation signal with the output of power splitter 1; The output of frequency mixer 6 is connected with the input of filter 8;
Intermediate-freuqncy signal output after the output of filter 7 is processed filtering;
The output of local vibration source 1 is connected with the input of power splitter 1; Power splitter 1 has two outputs, and one of them output is connected with frequency mixer 1, and another one output is connected with frequency mixer 6;
The output of local vibration source 2 is connected with the input of power splitter 2; Power splitter 2 has two outputs, and one of them output is connected with frequency mixer 2, and another one output is connected with frequency mixer 5;
The output of local vibration source 3 is connected with the input of this vibration magnifier, and the output of local oscillator frequency multiplier is connected with the input of power splitter 3; Power splitter 3 has two outputs, and one of them output is connected with frequency mixer 3, and another one output is connected with frequency mixer 4.
2. a kind of millimeter wave integration transceiver channel according to claim 1, is characterized in that: described Ka wave band up-convert channel, Ka frequency range switch module, local oscillator module, Ka frequency range down-conversion channel are integrated in same microwave structure.
3. a kind of millimeter wave integration transceiver channel according to claim 1, is characterized in that: described filter 1 adopts LFCN-225, filter 2 to adopt 6MB/C-890/U24-S5, filter 3 to adopt BP6700-480-CS, filter 4 to adopt HD-320WBPF, filter 5 to adopt HD-320WBPF, filter 6 to adopt BP6700-480-CS, filter 7 to adopt 6MB/C-890/U24-S5, filter 8 to adopt LFCN-225.
4. a kind of millimeter wave integration transceiver channel according to claim 1, is characterized in that: described frequency mixer 1 adopts HMC208MS8, frequency mixer 2 to adopt HMC220MS8, frequency mixer 3 to adopt HMC329LC3B, frequency mixer 4 to adopt HMC329LC3B, frequency mixer 5 to adopt HMC220MS8, frequency mixer 6 to adopt HMC208MS8.
5. a kind of millimeter wave integration transceiver channel according to claim 1, is characterized in that: described waveguide switch adopts AHD-320WESMD.
6. a kind of millimeter wave integration transceiver channel according to claim 1, is characterized in that: described local vibration source 1 output frequency is that 20GHz, local vibration source 2 output frequencies are that 6500-6900MHz, local vibration source 3 output frequencies are 820MHz.
7. a kind of millimeter wave integration transceiver channel according to claim 1, is characterized in that: described power splitter 1 adopts ADP-2-1, power splitter 2 to adopt microstrip power divider, power splitter 3 microstrip power dividers.
8. a kind of millimeter wave integration transceiver channel according to claim 1, is characterized in that: described local oscillator frequency multiplier adopts HMC448LC3B.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467889A (en) * | 2015-01-04 | 2015-03-25 | 安徽波维电子科技有限公司 | Ku-band three-local-oscillator down converter |
| CN105203805A (en) * | 2015-07-17 | 2015-12-30 | 上海卫星工程研究所 | Wired transmission support equipment for data transmitting radio-frequency signals in vacuum thermal environment |
| CN105490733A (en) * | 2015-12-28 | 2016-04-13 | 深圳市华讯方舟卫星通信有限公司 | Signal transceiver |
| CN105656431A (en) * | 2016-01-11 | 2016-06-08 | 中国电子科技集团公司第十研究所 | Ka waveband multi-channel down-conversion device |
| CN107621571A (en) * | 2016-07-15 | 2018-01-23 | 北京航天长征飞行器研究所 | A kind of wide-band microwave signal based on signal autocorrelation is than phase method and system |
| CN108337204A (en) * | 2017-12-26 | 2018-07-27 | 北京航天测控技术有限公司 | A kind of minimized wide-band vector signal up-converter circuit |
| CN108616288A (en) * | 2018-07-23 | 2018-10-02 | 成都吉纬科技有限公司 | A kind of vehicle-mounted millimeter wave transceiver of rail vehicle ground wireless communication |
| CN108667481A (en) * | 2018-07-23 | 2018-10-16 | 成都吉纬科技有限公司 | A kind of millimeter wave transceiver of rail vehicle ground wireless communication ground base station |
| CN109560854A (en) * | 2018-10-17 | 2019-04-02 | 上海航天电子有限公司 | A kind of one-board feed element applied to micro-nano satellite |
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2014
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467889A (en) * | 2015-01-04 | 2015-03-25 | 安徽波维电子科技有限公司 | Ku-band three-local-oscillator down converter |
| CN105203805A (en) * | 2015-07-17 | 2015-12-30 | 上海卫星工程研究所 | Wired transmission support equipment for data transmitting radio-frequency signals in vacuum thermal environment |
| CN105490733B (en) * | 2015-12-28 | 2017-12-01 | 深圳市华讯方舟卫星通信有限公司 | Signal transmitting and receiving machine |
| CN105490733A (en) * | 2015-12-28 | 2016-04-13 | 深圳市华讯方舟卫星通信有限公司 | Signal transceiver |
| CN105656431B (en) * | 2016-01-11 | 2018-12-14 | 中国电子科技集团公司第十研究所 | Ka wave band multichannel down-conversion device |
| CN105656431A (en) * | 2016-01-11 | 2016-06-08 | 中国电子科技集团公司第十研究所 | Ka waveband multi-channel down-conversion device |
| CN107621571A (en) * | 2016-07-15 | 2018-01-23 | 北京航天长征飞行器研究所 | A kind of wide-band microwave signal based on signal autocorrelation is than phase method and system |
| CN108337204A (en) * | 2017-12-26 | 2018-07-27 | 北京航天测控技术有限公司 | A kind of minimized wide-band vector signal up-converter circuit |
| CN108337204B (en) * | 2017-12-26 | 2020-12-25 | 北京航天测控技术有限公司 | Miniaturized broadband vector signal up-conversion circuit |
| CN108616288A (en) * | 2018-07-23 | 2018-10-02 | 成都吉纬科技有限公司 | A kind of vehicle-mounted millimeter wave transceiver of rail vehicle ground wireless communication |
| CN108667481A (en) * | 2018-07-23 | 2018-10-16 | 成都吉纬科技有限公司 | A kind of millimeter wave transceiver of rail vehicle ground wireless communication ground base station |
| CN108667481B (en) * | 2018-07-23 | 2023-09-19 | 成都吉纬科技有限公司 | Millimeter wave transceiver of ground base station for wireless communication of rail transit vehicle and ground |
| CN108616288B (en) * | 2018-07-23 | 2023-09-22 | 成都吉纬科技有限公司 | Vehicle-mounted millimeter wave transceiver for wireless communication of rail transit vehicle-ground |
| CN109560854A (en) * | 2018-10-17 | 2019-04-02 | 上海航天电子有限公司 | A kind of one-board feed element applied to micro-nano satellite |
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