CN205377790U - Frequency conversion channel circuit of up -conversion system - Google Patents
Frequency conversion channel circuit of up -conversion system Download PDFInfo
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- CN205377790U CN205377790U CN201620003110.8U CN201620003110U CN205377790U CN 205377790 U CN205377790 U CN 205377790U CN 201620003110 U CN201620003110 U CN 201620003110U CN 205377790 U CN205377790 U CN 205377790U
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- pass filter
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Abstract
The utility model discloses an up -conversion transmission channel circuit, including the first detector, first attenuator, a first amplifier, the balanced device, band pass filter, the ware is divided to the merit, the second attenuator, the third attenuator, a low -pass filter, the wave detector, the second amplifier, fault handling circuit and alarm output circuit, incoming signal is received to an input of first detector, the local oscillator signal is received to its another input, the output of first detector loops through first attenuator, a first amplifier, the balanced device, band pass filter divides an input of ware to be connected with the merit, band pass filter passes through frequency conversion in the low pass filter output, the merit divides another input of ware to pass through second attenuator receipt incoming signal, the merit divides the output of ware to loop through the third attenuator, the wave detector, the second amplifier, the fault handling circuit is connected with alarm output circuit, the wave detector is output detection signal still, the fault handling circuit still instructs output circuit, power control circuit and messenger to be connected by control circuit with the losing lock.
Description
Technical field
This utility model relates to a kind of up-conversion transmission channel circuit.
Background technology
The method realizing frequency hopping vibration has a lot, can be divided into by the mode realized and be directly synthesized (crystal oscillator frequency multiplier chain) and indirect synthesis (phase-locked loop).When employing is directly synthesized, system constitutes complexity, cost is high, interference wave restranint is not high, be not easily accomplished compared with close hop, operating current is big, volume is big；Although when adopting indirect synthesis system constitute simple, reliability high, cost is low, interference wave restranint is high, easy realization compared with close hop, operating current is little, volume is little, but must combine with the mode of being directly synthesized when constituting wide interval frequency hopping, and slow, the poor phase noise of frequency hopping speed etc. are all inevitable shortcomings.At present, the frequency hopping speed advanced international level in indirect synthesis source can reach about 10uS, for the shortcoming of poor phase noise, it is possible to optimizes circuit by reducing the phase noise of frequency multiplication number of times (N value) and raising reference signal.
Utility model content
The purpose of this utility model is in that to overcome the deficiencies in the prior art, a kind of up-conversion transmission channel circuit is provided, adopts frequency mixer to receive the local oscillation signal of digital PLL frequency source, input signal is carried out frequency spectrum shift, clutter recognition ratio in improvement system, strengthens capacity of resisting disturbance.
The purpose of this utility model is achieved through the following technical solutions: a kind of up-conversion transmission channel circuit, including frequency mixer, the first attenuator, the first amplifier, equalizer, band filter, power splitter, the second attenuator, the 3rd attenuator, low pass filter, cymoscope, the second amplifier, fault logic circuits and alarm output circuit.
One input of described frequency mixer receives input signal, and its another input receives local oscillation signal, and the outfan of frequency mixer passes sequentially through the first attenuator, the first amplifier, equalizer, band filter are connected with an input of power splitter.
Described band filter exports up-conversion signal by low pass filter.
Another input of described power splitter receives input signal by the second attenuator, and the outfan of power splitter passes sequentially through the 3rd attenuator, cymoscope, the second amplifier, fault logic circuits are connected with alarm output circuit.
Described cymoscope also output detections signal；Described fault logic circuits also indicates output circuit, power control circuit and enable control circuit to be connected with losing lock.
Further, described first attenuator includes numerical-control attenuator.
Further, described second attenuator includes fixed attenuator.
Further, described 3rd attenuator includes fixed attenuator.
The beneficial effects of the utility model are: this utility model adopts frequency mixer to receive the local oscillation signal of digital PLL frequency source, and input signal is carried out frequency spectrum shift, and the clutter recognition ratio in improvement system strengthens capacity of resisting disturbance.This utility model adopts module design, simplifies the design complexity of circuit, reduces modular debugging difficulty, strengthens the productibility of product.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of this utility model up-conversion transmission channel.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, This embodiment describes a kind of up-conversion transmission channel circuit, including frequency mixer, the first attenuator, the first amplifier, equalizer, band filter, power splitter, the second attenuator, the 3rd attenuator, low pass filter, cymoscope, the second amplifier, fault logic circuits and alarm output circuit.
One input of described frequency mixer receives input signal, and its another input receives local oscillation signal, and the outfan of frequency mixer passes sequentially through the first attenuator, the first amplifier, equalizer, band filter are connected with an input of power splitter.
In this utility model, described local oscillation signal is provided by digital PLL frequency source.
Described band filter exports up-conversion signal by low pass filter.
Another input of described power splitter receives input signal by the second attenuator, and the outfan of power splitter passes sequentially through the 3rd attenuator, cymoscope, the second amplifier, fault logic circuits are connected with alarm output circuit.
Described cymoscope also output detections signal；Described fault logic circuits also indicates output circuit, power control circuit and enable control circuit to be connected with losing lock.
Further, described first attenuator includes numerical-control attenuator, and numerical-control attenuator receives the control of control chip, such as NL27WZ04DTT1G chip.
Further, described second attenuator includes fixed attenuator.
Further, described 3rd attenuator includes fixed attenuator.
This utility model adopts frequency mixer to receive the local oscillation signal of digital PLL frequency source, and input signal is carried out frequency spectrum shift, and the clutter recognition ratio in improvement system strengthens capacity of resisting disturbance；Input signal is carried out upconversion process, exports up-conversion signal, by cymoscope output detections signal, and carry out alert process through fault logic circuits.This utility model adopts module design, simplifies the design complexity of circuit, reduces modular debugging difficulty, strengthens the productibility of product.
In this utility model, numerical-control attenuator can adopt HMC470LP3, and amplifier can adopt ABA-54563, and cymoscope can adopt the HMC601LP4 that ADI company performance is splendid.
Describe in an illustrative manner above with reference to accompanying drawing according to a kind of up-conversion transmission channel circuit of the present utility model.But; skilled artisan would appreciate that; for a kind of up-conversion transmission channel circuit that above-mentioned this utility model is proposed; various improvement can also be made on the basis without departing from this utility model content; or wherein portion of techniques feature is carried out equivalent replacement; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.Therefore, protection domain of the present utility model should be determined by the content of appending claims.
Claims (4)
1. a up-conversion transmission channel circuit, it is characterised in that: include frequency mixer, the first attenuator, the first amplifier, equalizer, band filter, power splitter, the second attenuator, the 3rd attenuator, low pass filter, cymoscope, the second amplifier, fault logic circuits and alarm output circuit；
One input of described frequency mixer receives input signal, and its another input receives local oscillation signal, and the outfan of frequency mixer passes sequentially through the first attenuator, the first amplifier, equalizer, band filter are connected with an input of power splitter；
Described band filter exports up-conversion signal by low pass filter；
Another input of described power splitter receives input signal by the second attenuator, and the outfan of power splitter passes sequentially through the 3rd attenuator, cymoscope, the second amplifier, fault logic circuits are connected with alarm output circuit；
Described cymoscope also output detections signal；Described fault logic circuits also indicates output circuit, power control circuit and enable control circuit to be connected with losing lock.
2. a kind of up-conversion transmission channel circuit according to claim 1, it is characterised in that: described first attenuator includes numerical-control attenuator.
3. a kind of up-conversion transmission channel circuit according to claim 1, it is characterised in that: described second attenuator includes fixed attenuator.
4. a kind of up-conversion transmission channel circuit according to claim 1, it is characterised in that: described 3rd attenuator includes fixed attenuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003110.8U CN205377790U (en) | 2016-01-05 | 2016-01-05 | Frequency conversion channel circuit of up -conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003110.8U CN205377790U (en) | 2016-01-05 | 2016-01-05 | Frequency conversion channel circuit of up -conversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205377790U true CN205377790U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620003110.8U Active CN205377790U (en) | 2016-01-05 | 2016-01-05 | Frequency conversion channel circuit of up -conversion system |
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| CN (1) | CN205377790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645728A (en) * | 2021-05-24 | 2021-11-12 | 中国电子科技集团公司第十三研究所 | Microwave generator of phase control system and frequency source chip thereof |
-
2016
- 2016-01-05 CN CN201620003110.8U patent/CN205377790U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645728A (en) * | 2021-05-24 | 2021-11-12 | 中国电子科技集团公司第十三研究所 | Microwave generator of phase control system and frequency source chip thereof |
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