CN210041759U - Signal frequency conversion and power control assembly - Google Patents
Signal frequency conversion and power control assembly Download PDFInfo
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- CN210041759U CN210041759U CN201920957792.XU CN201920957792U CN210041759U CN 210041759 U CN210041759 U CN 210041759U CN 201920957792 U CN201920957792 U CN 201920957792U CN 210041759 U CN210041759 U CN 210041759U
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Abstract
A signal conversion, power control assembly, comprising: input signal 1, input signal 2, mixer, pi attenuator, driver amplifier, power amplifier, switch filter 1, switch filter 2 and power supply and control circuit. An input signal 1 and an input signal 2 are respectively connected to two signal input ends of the frequency mixer; the signal output end of the mixer is connected with a pi attenuator, and the mixed signal is subjected to gain adjustment through the pi attenuator; the other end of the pi attenuator is connected with a driving amplifier; the driving amplifier is connected with a power amplifier, and the driving amplifier amplifies the signal to drive the power amplifier; the power amplifier is connected with a switch filter 1 and a switch filter 2 respectively, and higher harmonics generated by the amplifier can be effectively suppressed by selecting different filters. By adding two switch filters in front of the signal output port, higher harmonics generated by the amplifier can be effectively suppressed by selecting different filters; meanwhile, the two switch filters are connected in parallel, and can be selectively controlled through the control chip to achieve the purpose of outputting different powers, so that the problem that the power is controlled only singly is solved.
Description
Technical Field
The utility model relates to a signal frequency conversion, power control subassembly.
Background
In the field of microwave technology, frequency conversion of signals is usually realized by using a mixer, and mixing refers to a process of mixing two electric signals with different frequencies and obtaining a third frequency signal through a frequency selection loop. The power control generally adopts a control chip with an attenuator and an amplifier for auxiliary control. In the existing signal frequency conversion and power control assembly in the market, the generated frequency conversion signal is usually accompanied by larger higher harmonics, and the control on the power is single.
Disclosure of Invention
In order to overcome produced frequency conversion signal among the prior art and to accompany great higher harmonic usually, the single defect of power control, the utility model provides a signal frequency conversion, power control subassembly.
The utility model provides a technical scheme that its technical problem adopted is: a signal conversion, power control assembly, comprising: the device comprises an input signal I, an input signal II, a mixer, a pi attenuator, a driving amplifier, a power amplifier, a switch filter I, a switch filter II, a power supply and a control circuit. The input signal I and the input signal II are respectively connected to two signal input ends of the frequency mixer; the signal output end of the mixer is connected with a pi attenuator, and the mixed signal is subjected to gain adjustment through the pi attenuator; the other end of the pi attenuator is connected with a driving amplifier; the driving amplifier is connected with a power amplifier, and the driving amplifier amplifies the signal to drive the power amplifier; the power amplifier is connected with the first switch filter and the second switch filter respectively, and higher harmonics generated by the amplifier can be effectively suppressed by selecting different filters.
In the signal frequency conversion and power control assembly, the power amplifier is designed by adopting the LDMOS triode amplifier, so that the power amplifier not only has higher output power, but also has stronger standing wave damage resistance and good linear characteristic.
In the signal frequency conversion and power control component, the switch filter consists of the PIN switch and the LC filter, and the LC filter has no parasitic passband and can simplify the circuit design.
In the signal frequency conversion and power control assembly, the power supply and the control circuit adopt the CPLD for combined decoding, and can be upgraded and reformed on the premise of not changing the hardware structure of the circuit.
The beneficial effects of the utility model
By adding two switch filters in front of the signal output port, higher harmonics generated by the amplifier can be effectively suppressed by selecting different filters; meanwhile, the two switch filters are connected in parallel, and can be selectively controlled through the control chip to achieve the purpose of outputting different powers, so that the problem that the power is controlled only singly is solved.
Drawings
FIG. 1 is a schematic view of the present invention
In the figure, 1, an input signal I, 2, an input signal II, 3, a mixer, 4, a pi attenuator, 5, a driving amplifier, 6, a power amplifier, 7, a switching filter I, 8, a switching filter II, 9, a power supply and a control circuit.
Detailed description of the invention
The input signal I1 and the input signal II 2 are respectively connected to two signal input ends of the mixer 3; the signal output end of the mixer 3 is connected with a pi attenuator 4, and the mixed signal is subjected to gain adjustment through the pi attenuator 4; the other end of the pi attenuator 4 is connected with a driving amplifier 5; the driving amplifier 5 is followed by a power amplifier 6, and the driving amplifier 5 amplifies the signal to drive the power amplifier 6; the power amplifier 6 is connected with a first switch filter 7 and a second switch filter 8 respectively, and higher harmonics generated by the amplifier can be effectively suppressed by selecting different filters.
The power amplifier is designed by adopting an LDMOS triode amplifier.
A power and control circuit (9) monitors output reflected and amplifier current and reports faults at high levels when out of normal range.
Claims (4)
1. A signal conversion, power control assembly, comprising: the device comprises an input signal I, an input signal II, a mixer, a pi attenuator, a driving amplifier, a power amplifier, a switch filter I, a switch filter II and a power supply and control circuit; the input signal I and the input signal II are respectively connected to two signal input ends of the frequency mixer; the signal output end of the mixer is connected with a pi attenuator, and the mixed signal is subjected to gain adjustment through the pi attenuator; the other end of the pi attenuator is connected with a driving amplifier; the driving amplifier is connected with a power amplifier, and the driving amplifier amplifies the signal to drive the power amplifier; the power amplifier is connected with the first switch filter and the second switch filter respectively, and higher harmonics generated by the amplifier can be effectively suppressed by selecting different filters.
2. A signal conversion, power control assembly as claimed in claim 1, wherein: the power amplifier is designed by adopting an LDMOS triode amplifier.
3. A signal conversion, power control assembly as claimed in claim 1, wherein: the switch filter consists of a PIN switch and an LC filter, and the LC filter has no parasitic passband and can simplify the circuit design.
4. A signal conversion, power control assembly as claimed in claim 1, wherein: the power supply and the control circuit adopt CPLD for combined decoding, and can be upgraded and reformed on the premise of not changing the hardware structure of the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920957792.XU CN210041759U (en) | 2019-06-25 | 2019-06-25 | Signal frequency conversion and power control assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920957792.XU CN210041759U (en) | 2019-06-25 | 2019-06-25 | Signal frequency conversion and power control assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210041759U true CN210041759U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920957792.XU Active CN210041759U (en) | 2019-06-25 | 2019-06-25 | Signal frequency conversion and power control assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210041759U (en) |
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2019
- 2019-06-25 CN CN201920957792.XU patent/CN210041759U/en active Active
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