CN210041765U - Controllable signal frequency conversion subassembly of gain - Google Patents
Controllable signal frequency conversion subassembly of gain Download PDFInfo
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- CN210041765U CN210041765U CN201920957730.9U CN201920957730U CN210041765U CN 210041765 U CN210041765 U CN 210041765U CN 201920957730 U CN201920957730 U CN 201920957730U CN 210041765 U CN210041765 U CN 210041765U
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Abstract
The utility model discloses a controllable signal frequency conversion subassembly of gain belongs to microwave communication equipment technical field. The gain-controllable signal frequency conversion assembly mixes an input signal, performs multi-stage attenuation, filtering and amplification processing on the signal output after mixing, enables the signal to reach a required frequency point, simultaneously rejects unnecessary local oscillation and clutter signals through multi-stage filtering processing on the signal, and finally divides the signal into two paths through the power divider for output. The gain control signal SPI controls the gain of the second amplifier, thereby achieving control of the output signal power. The gain controllable range of the selected second amplifier is 0-32 dB, the stepping is 0.5dB, namely the controllable range of the output power is 32dB, the stepping is 0.5dB, the controllable range is wide, and the power requirements of most power can be met.
Description
Technical Field
The utility model relates to a controllable signal frequency conversion subassembly of gain belongs to microwave communication equipment technical field.
Background
The signal frequency conversion is an indispensable link in the field of microwave communication, and the frequency conversion signal required by people is obtained through the processing of filtering, amplifying, mixing and the like of an input signal. Except for the requirement on the frequency index, the power index of the output signal is also a consideration range, and the required power value is different for different application conditions, because the same signal frequency conversion component can be applied to more circuits if the gain control of the output signal can be realized, the development cost is greatly saved, and the development efficiency is also improved. Meanwhile, the variable frequency component with controllable gain is combined with a signal processing device (such as an FPGA device), so that an AGC circuit capable of automatically adjusting output power can be realized, and the output power is more stable. Meanwhile, for the variable frequency signal, the performance of the product can be greatly improved due to the characteristics of low stray and low phase noise.
Disclosure of Invention
The utility model provides a controllable signal frequency conversion subassembly of gain can realize output controllable function, has low good performance such as stray, low phase noise simultaneously.
A gain-controllable signal frequency conversion assembly comprises a mixer, four attenuators, six filters, two amplifiers and a power divider. The first path of signal is input from the first filter, one end of the first attenuator is connected with the first filter, and the other end of the first attenuator is output to the mixer. And the second path of signal is input from the second attenuator and then output to the mixer. Two ends of the frequency mixer are connected with the two signal input channels, the third end of the frequency mixer is connected with the second filter, and the other end of the second filter is connected with the first amplifier. One end of the third filter is connected with the first amplifier, the other end of the third filter is connected with the second amplifier, and the other end of the second amplifier is output to the fourth filter. The input end of the power divider is connected with the fourth filter, and the output end of the power divider is connected with two paths of same frequency conversion signal output channels.
The utility model discloses an in an embodiment, two way frequency conversion signal output channels respectively comprise an attenuator and wave filter, attenuator one end is connected with the merit and divides the ware to be connected, and the other end is connected to the wave filter, the final frequency conversion signal who produces of wave filter other end output.
In an embodiment of the present invention, the mixer is high local oscillator 2300MHz, 12dBm, intermediate frequency 750MHz, and frequency conversion loss 7 dB.
In an embodiment of the present invention, the first amplifier is an intermediate frequency amplifier, the gain is 13dB, the P-1out is greater than 20dBm, the second amplifier is an automatic gain control amplifier, and the third end of the automatic gain control amplifier inputs a gain control signal SPI.
The present invention provides an implementation manner, wherein the second filter is a band pass filter, the third and fourth filters are intermediate frequency filters, and the remaining filters are low pass filters.
The beneficial effects of the utility model
The utility model provides a pair of controllable signal frequency conversion subassembly of gain, the frequency conversion signal that can output adjustable, low stray, the second is made an uproar mutually.
The utility model discloses utilize the combination application of attenuator and amplifier, carry out attenuation treatment to the signal earlier, later amplify the signal, adopt automatic gain control amplifier at the signal amplification in-process, control amplification gain to the realization is to output's control, and the amplifier controllable range of selected usefulness is 0~32dB, and is step-by-step 0.5. The controllable range of power is wide, and step-by-step is little, can satisfy most power demands, and subassembly portability is strong.
And simultaneously, the utility model discloses set up multistage filter in signal transmission process, and chooseed the corresponding wave filter model for use to different signals and filtering demands, very big optimization output variable frequency signal's stray and the index of making an uproar mutually, promoted product property ability greatly.
Drawings
FIG. 1 is a schematic diagram of the principle of the present invention
In the figure, 1, a first filter, 2, a first attenuator, 3, a mixer, 4, a second filter, 5, a first amplifier, 6, a third filter, 7, a second amplifier, 8, a fourth filter, 9, a second attenuator, 10, a power divider, 11, a third attenuator, 12, a fifth filter, 13, a fourth attenuator, 14, and a sixth filter
Detailed description of the invention
A gain-controllable signal frequency conversion assembly comprises a mixer 3, four attenuators 2, 9, 11 and 13, six filters 1, 4, 6, 8, 12 and 14, two amplifiers 5 and 7 and a power divider 10. The first path of signal is input from the first filter, one end of the first attenuator 2 is connected with the first filter 1, and the other end is output to the mixer 3. The second path of signal is input from the second attenuator 9 and then output to the mixer 3. Two ends of the frequency mixer 3 are connected with the two signal input channels, the third end of the frequency mixer is connected with the second filter 4, and the other end of the second filter 4 is connected with the first amplifier 5. One end of the third filter 6 is connected with the first amplifier 5, the other end of the third filter is connected with the second amplifier 7, and the other end of the second amplifier 7 is output to the fourth filter 8. The input end of the power divider 10 is connected with the fourth filter 8, and the output end is connected with two identical frequency conversion signal output channels.
The utility model discloses an in an embodiment, two way frequency conversion signal output channels respectively comprise an attenuator 11, 13 and wave filter 12, 14, attenuator 11, 13 one end are connected with merit branch 10, and the other end is connected to wave filter 12, 14, the final frequency conversion signal who produces is exported to the wave filter 12, 14 other end.
In an embodiment of the present invention, the mixer 3 has a high fundamental vibration of 2300MHz, 12dBm, an intermediate frequency of 750MHz, and a frequency conversion loss of 7 dB.
In one embodiment of the present invention, the first amplifier 5 is an intermediate frequency amplifier, the gain is 13dB, the P-1out is greater than 20dBm, and the second amplifier 7 is an automatic gain control amplifier. And a third end of the automatic gain control amplifier inputs a gain control signal SPI.
In an embodiment of the present invention, the second filter 4 is a band pass filter, the third filter 6 and the fourth filter 8 are intermediate frequency filters, and the rest of the filters 1, 12, and 14 are low pass filters.
The two paths of input signals are respectively input to the frequency mixer from the two signal input channels, multi-stage attenuation, filtering and amplification processing are carried out on the signals output after frequency mixing, the signals reach required frequency points, meanwhile, unnecessary local oscillation and clutter signals can be removed through multi-stage filtering processing of the signals, and finally the signals are divided into two paths of output through the power divider. The gain control signal SPI controls the gain of the second amplifier, thereby achieving control of the output signal power. The gain controllable range of the selected second amplifier is 0-32 dB, the stepping is 0.5dB, namely the controllable range of the output power is 32dB, the stepping is 0.5dB, the controllable range is wide, and the power requirements of most power can be met.
Claims (5)
1. A gain-controllable signal frequency conversion component is characterized in that the component consists of a mixer, four attenuators, six filters, two amplifiers and a power divider; a first path of signal is input from the first filter, one end of the first attenuator is connected with the first filter, and the other end of the first attenuator is output to the mixer; the second path of signal is input from the second attenuator and then output to the mixer; two ends of the frequency mixer are connected with the two signal input channels, the third end of the frequency mixer is connected with a second filter, and the other end of the second filter is connected with the first amplifier; one end of the third filter is connected with the first amplifier, the other end of the third filter is connected with the second amplifier, and the other end of the second amplifier is output to the fourth filter; the input end of the power divider is connected with the fourth filter, and the output end of the power divider is connected with two paths of same frequency conversion signal output channels.
2. The gain-controllable signal conversion module according to claim 1, wherein each of the two variable frequency signal output channels comprises an attenuator and a filter, the attenuator is connected to the power divider at one end, and connected to the filter at the other end, and the filter outputs the variable frequency signal at the other end.
3. The gain-controllable signal conversion module according to claim 1, wherein the mixer has a high local oscillator of 2300MHz, 12dBm, an intermediate frequency of 750MHz, and a conversion loss of 7 dB.
4. The gain-controllable signal conversion module of claim 1, wherein the first amplifier is an intermediate frequency amplifier, the gain is 13dB, and P-1out is greater than 20dBm; the second amplifier is an automatic gain control amplifier, and a third end of the automatic gain control amplifier inputs a gain control signal SPI.
5. A gain controllable signal conversion module as claimed in claim 1, wherein said second filter is a band pass filter, the third and fourth filters are intermediate frequency filters, and the remaining filters are low pass filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920957730.9U CN210041765U (en) | 2019-06-25 | 2019-06-25 | Controllable signal frequency conversion subassembly of gain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920957730.9U CN210041765U (en) | 2019-06-25 | 2019-06-25 | Controllable signal frequency conversion subassembly of gain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210041765U true CN210041765U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920957730.9U Active CN210041765U (en) | 2019-06-25 | 2019-06-25 | Controllable signal frequency conversion subassembly of gain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210041765U (en) |
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2019
- 2019-06-25 CN CN201920957730.9U patent/CN210041765U/en active Active
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A gain controllable signal frequency conversion component Granted publication date: 20200207 Pledgee: Bank of Jiangsu Limited by Share Ltd. Wuxi branch Pledgor: JIANGSU ZHONGXINHUI TECHNOLOGY Co.,Ltd. Registration number: Y2024980007894 |