CN210431418U - Millimeter wave signal transceiver - Google Patents
Millimeter wave signal transceiver Download PDFInfo
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- CN210431418U CN210431418U CN201922275070.9U CN201922275070U CN210431418U CN 210431418 U CN210431418 U CN 210431418U CN 201922275070 U CN201922275070 U CN 201922275070U CN 210431418 U CN210431418 U CN 210431418U
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Abstract
The utility model discloses a millimeter wave signal transceiver, which comprises a frequency source module, a down-conversion module, an optical fiber signal processing module, an up-conversion module, a program control attenuation module and a power supply and control module; the down-conversion module, the optical fiber signal processing module, the up-conversion module and the program-controlled attenuation module are sequentially connected, and the down-conversion module and the up-conversion module are both also connected with the frequency source module; the frequency source module, the down-conversion module, the up-conversion module and the program-controlled attenuation module are all connected with the power supply and control module, and the power supply and control module is used for controlling the power supply state and working parameters of each connected module; the millimeter wave signal transceiver realizes modularization and miniaturization, and can reduce production cost.
Description
Technical Field
The utility model relates to a microwave communication technology, especially a millimeter wave signal transceiver.
Background
Microwave communication has been deeply integrated into the life of people, and in recent years, the microwave communication technology is in a continuous development situation. Because the demand of microwave communication hardware equipment is rapidly increasing, the cost control and other factors are always concerned by related personnel, and therefore, the microwave communication nowadays mainly aims to develop modularized and miniaturized hardware equipment in terms of hardware.
Like application number 201320707640.7, the name is a miniaturized microwave transceiver channel device's utility model patent, through realizing signal transceiver function with all device integrations on the printing board, it has realized the miniaturization to a certain extent, but its each functional circuit is comparatively chaotic, can not form modular structure, can not accomplish further reduction in manufacturing cost.
The utility model discloses will be with solving above-mentioned problem as the original intention, it is expected to provide a miniaturized, modular signal transceiver.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a modularization, miniaturized millimeter wave signal transceiver.
The purpose of the utility model is realized through the following technical scheme:
a millimeter wave signal transceiver comprises a frequency source module, a down-conversion module, an optical fiber signal processing module, an up-conversion module, a program-controlled attenuation module and a power supply and control module;
the down-conversion module, the optical fiber signal processing module, the up-conversion module and the program-controlled attenuation module are sequentially connected, and the down-conversion module and the up-conversion module are both also connected with the frequency source module;
the frequency source module, the down-conversion module, the up-conversion module and the program-controlled attenuation module are all connected with the power supply and control module, and the power supply and control module is used for controlling the power supply state and working parameters of the connected modules.
Furthermore, the frequency source module comprises a down-conversion local oscillator unit, a crystal oscillator and clock unit and an up-conversion local oscillator unit, and the down-conversion local oscillator unit and the up-conversion local oscillator unit are both connected with the crystal oscillator and the clock unit;
the down-conversion local oscillator unit is also connected with the down-conversion module, and the up-conversion local oscillator unit is also connected with the up-conversion module;
the down-conversion local oscillator unit, the crystal oscillator and clock unit and the up-conversion local oscillator unit are all connected with the power supply and the control module.
Further, the down-conversion module comprises an amplitude limiter, a first filter, a first power divider, a power stabilizing circuit, a second filter, a first mixer, a third filter and a first amplifier which are connected in sequence; the input end of the amplitude limiter is used for receiving radio frequency signals; the output end of the first amplifier is used for outputting an intermediate frequency signal obtained after frequency mixing;
the input end of the first frequency mixer is also connected with the down-conversion local oscillation unit;
the down-conversion module further comprises a first detection circuit, the first detection circuit comprises a second mixer, a fourth filter, a second amplifier and a first detector which are sequentially connected, and the second mixer is further connected with the first power divider.
Further, the input end of the second mixer is also connected to the down-conversion local oscillation unit; and the down-conversion local oscillator unit provides local oscillator signals for the first frequency mixer and the second frequency mixer in a multiplexing mode.
Further, the power stabilizing circuit comprises a third amplifier, a fourth amplifier and a fifth amplifier which are connected in sequence; an input end of the third amplifier is connected to an output end of the first power divider, and an output end of the fifth amplifier is connected to an input end of the second filter.
Furthermore, the down-conversion module further comprises a plurality of pi-type attenuators, and the pi-type attenuators are arranged between electronic devices in the down-conversion module circuit.
Furthermore, the up-conversion module comprises a fifth filter, a second power divider, a sixth amplifier, a first attenuator, a third mixer, a second attenuator, a sixth filter, a seventh amplifier, a first numerical control attenuator, an eighth amplifier, a second numerical control attenuator, a third numerical control attenuator, a fourth numerical control attenuator, a fifth numerical control attenuator and a seventh filter which are connected in sequence;
the detector further comprises a second detector circuit, wherein the second detector circuit comprises a ninth amplifier and a second detector which are sequentially connected; the ninth amplifier is further connected with the second power divider.
Further, the second detector circuit comprises a third attenuator and a second detector which are connected in sequence; the third attenuator is also connected with the second power divider.
Further, the power supply and control module comprises a power supply unit and a control unit, wherein the power supply unit is provided with a power supply isolation device, and the control unit is provided with a control line isolation device.
The utility model has the advantages of it is following:
1. the millimeter wave signal transceiver adopts a modularized arrangement mode, and the miniaturization of the equipment is further realized through the integration of all modules; modularization and miniaturization are realized, so that the production cost of hardware is reduced;
2. the down-conversion module used by the millimeter wave signal transceiver is provided with a power stabilizing circuit and can output an intermediate frequency signal with stable power;
3. the millimeter wave signal transceiver has automatic detection capability.
Drawings
Fig. 1 is a schematic structural diagram of the millimeter wave signal transceiver according to the present invention;
fig. 2 is a circuit diagram of a down-conversion module of the millimeter wave signal transceiver according to the present invention;
fig. 3 is a circuit diagram of the first detection circuit of the down conversion module of the millimeter wave signal transceiver according to the present invention;
fig. 4 is a circuit diagram of the power stabilizing circuit of the down-conversion module of the millimeter wave signal transceiver according to the present invention;
fig. 5 is another circuit diagram of the down conversion module of the millimeter wave signal transceiver according to the present invention;
fig. 6 is a circuit diagram of the up-conversion module of the millimeter wave signal transceiver of the present invention;
fig. 7 is a circuit diagram of a second detection circuit of the up-conversion module of the millimeter wave signal transceiver according to the present invention;
in the figure, 1-a limiter, 2-a first filter, 3-a first power divider, 4-a second filter, 5-a first mixer, 6-a third filter, 7-a first amplifier, 8-a second mixer, 9-a fourth filter, 10-a second amplifier, 11-a first detector, 12-a third amplifier, 13-a fourth amplifier, 14-a fifth amplifier, 15-a type attenuator, 16-a fifth filter, 17-a second power divider, 18-a sixth amplifier, 19-a first attenuator, 20-a third mixer, 21-a second attenuator, 22-a sixth filter, 23-a seventh amplifier, 24-a first digitally controlled attenuator, 25-an eighth amplifier, 26-a second digitally controlled attenuator, 27-a third numerically controlled attenuator, 28-a fourth numerically controlled attenuator, 29-a fifth numerically controlled attenuator, 30-a seventh filter, 31-a ninth amplifier, 32-a second detector, 33-a third attenuator.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following description will clearly describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a millimeter wave signal transceiver, including frequency source module, down conversion module, optic fibre signal processing module, up conversion module, programme-controlled decay module and power and control module; the down-conversion module, the optical fiber signal processing module, the up-conversion module and the program-controlled attenuation module are sequentially connected, and the down-conversion module and the up-conversion module are both also connected with the frequency source module; the frequency source module, the down-conversion module, the up-conversion module and the program-controlled attenuation module are all connected with the power supply and control module, and the power supply and control module is used for controlling the power supply state and working parameters of the connected modules.
As shown in fig. 1, the frequency source module, the down-conversion module, the optical fiber signal processing module, the up-conversion module, the program-controlled attenuation module, the power supply and the control module are integrally packaged on a board card, and circuits and devices for realizing related functions are integrally packaged on the board card in a modularized manner, so that miniaturization of hardware equipment is realized, and meanwhile, expandability of the equipment is increased due to modularized arrangement.
The millimeter wave signal transceiver has the following working process that a radio frequency signal is received and down-converted into an intermediate frequency signal suitable for an optical fiber signal processing module; and up-converting the intermediate frequency signal passing through the light signal processing module into a radio frequency signal, and then outputting the radio frequency signal after adjusting the output power through the program control attenuation module.
The power supply and control module is used for completing the communication of the upper computer and the control of the working state and parameters of each module or related devices and providing +/-12V and +/-5V direct-current voltage.
As shown in fig. 1, the frequency source module includes a down-conversion local oscillator unit, a crystal oscillator and clock unit, and an up-conversion local oscillator unit, where the down-conversion local oscillator unit and the up-conversion local oscillator unit are both connected to the crystal oscillator and the clock unit; the down-conversion local oscillator unit is also connected with the down-conversion module, and the up-conversion local oscillator unit is also connected with the up-conversion module; the down-conversion local oscillator unit, the crystal oscillator and clock unit and the up-conversion local oscillator unit are all connected with the power supply and the control module.
The crystal oscillator and clock unit is controlled by the power supply and control unit and is used for generating an initial reference signal and sending the reference signal to the down-conversion local oscillator unit and the up-conversion local oscillator unit; according to the reference signal, the down-conversion local oscillator unit and the up-conversion local oscillator unit respectively generate corresponding local oscillator signals and send the local oscillator signals to the down-conversion module and the up-conversion module for frequency mixing.
As shown in fig. 2, the down-conversion module includes a limiter 1, a first filter 2, a first power divider 3, a power stabilizing circuit, a second filter 4, a first mixer 5, a third filter 6, and a first amplifier 7, which are connected in sequence; the input end of the amplitude limiter 1 is used for receiving radio frequency signals; the output end of the first amplifier 7 is configured to output an intermediate frequency signal obtained after frequency mixing; the input end of the first frequency mixer 5 is also connected with the down-conversion local oscillation unit; the down-conversion module further includes a first detector circuit, as shown in fig. 3, the first detector circuit includes a second mixer 8, a fourth filter 9, a second amplifier 10, and a first detector 11, which are connected in sequence, and the second mixer 8 is further connected to the first power divider 3.
The first detection circuit is realized by adopting a mode of a frequency mixer and a low-frequency detector, the combined detection is easy to realize and small in size, and the cost is saved and the miniaturization is realized; the detection output voltage is about 0.5-2V, and the method can be well suitable for the conditions of large dynamic range and high frequency of input radio frequency signals.
The input end of the second frequency mixer 8 is further connected with the down-conversion local oscillation unit; the down-conversion local oscillator unit provides local oscillator signals for the first frequency mixer 5 and the second frequency mixer 8 in a multiplexing mode.
The down-conversion module comprises a first frequency mixer 5 used for a down-conversion channel and a second frequency mixer 8 used for down-conversion detection, local oscillation signals used by frequency mixing of the first frequency mixer 5 and the second frequency mixer 8 are provided by a down-conversion local oscillation unit, the down-conversion local oscillation unit provides two local oscillation signals in a multiplexing mode, the down-conversion local oscillation unit is utilized to the maximum, and the miniaturization of hardware equipment is further facilitated.
As shown in fig. 4, the power stabilizing circuit includes a third amplifier 12, a fourth amplifier 13, and a fifth amplifier 14 connected in sequence; an input end of the third amplifier 12 is connected to an output end of the first power divider 3, and an output end of the fifth amplifier 14 is connected to an input end of the second filter 4.
The power stabilizing circuit can stabilize the radio frequency signal power to-10 dBm +/-1 dBm before entering the first mixer 5; the power stabilizing circuit adopts a three-stage amplifier, when the power of an input signal is-40 dBm, the third-stage amplifier reaches saturation, the saturation output of the third-stage amplifier is about 7dBm, when the power of the input signal is +20dBm, the third-stage amplifier can also reach saturation, the saturation output power of the third-stage amplifier is also about 7dBm, and the power before entering the first mixer 5 can be stabilized at-10 dBm +/-1 dBm when the power of the input signal is in a dynamic range of-40 dBm to +20dBm by matching with a subsequent attenuator.
The power stabilizing mode of the three-stage amplifier can avoid the output power bounce phenomenon possibly existing in the radio frequency AGC mode, and meanwhile, the larger stray interference generated in the intermediate frequency AGC mode can be avoided.
The down conversion module further comprises a plurality of pi-type attenuators 15, the pi-type attenuators 15 being disposed between electronic devices in the down conversion module circuitry.
As shown in fig. 5, the pi-type attenuator 15 is mainly disposed between the third amplifier 12 and the fourth amplifier 13, between the second filter 4 and the first mixer 5, and between the first mixer 5 and the third filter 6; and the pi filter is also connected to the output of the first amplifier 7.
As shown in fig. 6, the up-conversion module includes a fifth filter 16, a second power divider 17, a sixth amplifier 18, a first attenuator 19, a third mixer 20, a second attenuator 21, a sixth filter 22, a seventh amplifier 23, a first digitally controlled attenuator 24, an eighth amplifier 25, a second digitally controlled attenuator 26, a third digitally controlled attenuator 27, a fourth digitally controlled attenuator 28, a fifth digitally controlled attenuator 29, and a seventh filter 30, which are connected in sequence; the up-conversion module further comprises a second detector circuit, and the second detector circuit comprises a ninth amplifier 31 and a second detector 32 which are connected in sequence; the ninth amplifier 31 is further connected to the second power divider 17.
The attenuation range of the first numerical control attenuator 24, the second numerical control attenuator 26, the third numerical control attenuator 27, the fourth numerical control attenuator 28 and the fifth numerical control attenuator 29 is 0-31.5 dB, and the total attenuation range of 5 numerical control attenuators is 0-157.5 dB; and the attenuation steps of the numerical control attenuator are all 0.5dB, so that the attenuation precision of the up-conversion module is within +/-1 dB.
The second detector circuit can also adopt a third attenuator 33 and a second detector 32 which are connected in sequence; the third attenuator 33 is also connected to the second power divider 17.
The power supply and control module comprises a power supply unit and a control unit, wherein the power supply unit is provided with a power supply isolation device, and the control unit is provided with a control line isolation device.
The power supply isolation device comprises a magnetic ring, a filter capacitor and the like which are added on a power supply; the control line isolation device comprises a magnetic ring, a filter capacitor and the like which are additionally arranged on the control line.
Claims (9)
1. A millimeter wave signal transceiver is characterized by comprising a frequency source module, a down-conversion module, an optical fiber signal processing module, an up-conversion module, a program-controlled attenuation module and a power supply and control module;
the down-conversion module, the optical fiber signal processing module, the up-conversion module and the program-controlled attenuation module are sequentially connected, and the down-conversion module and the up-conversion module are both also connected with the frequency source module;
the frequency source module, the down-conversion module, the up-conversion module and the program-controlled attenuation module are all connected with the power supply and control module, and the power supply and control module is used for controlling the power supply state and working parameters of the connected modules.
2. The millimeter-wave signal transceiver according to claim 1, wherein the frequency source module comprises a down-conversion local oscillator unit, a crystal oscillator and clock unit, and an up-conversion local oscillator unit, both of which are connected to the crystal oscillator and clock unit;
the down-conversion local oscillator unit is also connected with the down-conversion module, and the up-conversion local oscillator unit is also connected with the up-conversion module;
the down-conversion local oscillator unit, the crystal oscillator and clock unit and the up-conversion local oscillator unit are all connected with the power supply and the control module.
3. The millimeter wave signal transceiver according to claim 2, wherein the down-conversion module comprises a limiter, a first filter, a first power divider, a power stabilizing circuit, a second filter, a first mixer, a third filter and a first amplifier, which are connected in sequence; the input end of the amplitude limiter is used for receiving radio frequency signals; the output end of the first amplifier is used for outputting an intermediate frequency signal obtained after frequency mixing;
the input end of the first frequency mixer is also connected with the down-conversion local oscillation unit;
the down-conversion module further comprises a first detection circuit, the first detection circuit comprises a second mixer, a fourth filter, a second amplifier and a first detector which are sequentially connected, and the second mixer is further connected with the first power divider.
4. The millimeter-wave signal transceiver according to claim 3, wherein the input terminal of the second mixer is further connected to the down-conversion local oscillation unit; and the down-conversion local oscillator unit provides local oscillator signals for the first frequency mixer and the second frequency mixer in a multiplexing mode.
5. The millimeter wave signal transceiver according to claim 3, wherein the power stabilization circuit includes a third amplifier, a fourth amplifier, and a fifth amplifier connected in this order; an input end of the third amplifier is connected to an output end of the first power divider, and an output end of the fifth amplifier is connected to an input end of the second filter.
6. The millimeter-wave signal transceiver of claim 5, wherein the down-conversion module further comprises a plurality of pi-type attenuators disposed between the electronics in the down-conversion module circuitry.
7. The millimeter wave signal transceiver according to claim 2, wherein the up-conversion module comprises a fifth filter, a second power divider, a sixth amplifier, a first attenuator, a third mixer, a second attenuator, a sixth filter, a seventh amplifier, a first numerical control attenuator, an eighth amplifier, a second numerical control attenuator, a third numerical control attenuator, a fourth numerical control attenuator, a fifth numerical control attenuator and a seventh filter, which are connected in sequence;
the detector further comprises a second detector circuit, wherein the second detector circuit comprises a ninth amplifier and a second detector which are sequentially connected; the ninth amplifier is further connected with the second power divider.
8. The millimeter wave signal transceiver according to claim 7, wherein the second detector circuit includes a third attenuator and a second detector connected in this order; the third attenuator is also connected with the second power divider.
9. The millimeter wave signal transceiver of claim 1, wherein the power and control module comprises a power supply unit having a power supply isolation device and a control unit having a control line isolation device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922275070.9U CN210431418U (en) | 2019-12-17 | 2019-12-17 | Millimeter wave signal transceiver |
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| CN201922275070.9U CN210431418U (en) | 2019-12-17 | 2019-12-17 | Millimeter wave signal transceiver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115333567A (en) * | 2022-10-14 | 2022-11-11 | 南京冉思电子科技有限公司 | Unmanned aerial vehicle target simulation ware frequency conversion and fiber module |
| CN116032302A (en) * | 2023-02-06 | 2023-04-28 | 成都正扬博创电子技术有限公司 | Miniaturized airborne anti-collision zero intermediate frequency receiving channel module |
-
2019
- 2019-12-17 CN CN201922275070.9U patent/CN210431418U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115333567A (en) * | 2022-10-14 | 2022-11-11 | 南京冉思电子科技有限公司 | Unmanned aerial vehicle target simulation ware frequency conversion and fiber module |
| CN115333567B (en) * | 2022-10-14 | 2023-02-28 | 南京冉思电子科技有限公司 | Unmanned aerial vehicle target simulation ware frequency conversion and fiber module |
| CN116032302A (en) * | 2023-02-06 | 2023-04-28 | 成都正扬博创电子技术有限公司 | Miniaturized airborne anti-collision zero intermediate frequency receiving channel module |
| CN116032302B (en) * | 2023-02-06 | 2023-12-22 | 成都正扬博创电子技术有限公司 | Miniaturized airborne anti-collision zero intermediate frequency receiving channel module |
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