CN204145461U - A kind of high-frequency signal launches modulation circuit - Google Patents
A kind of high-frequency signal launches modulation circuit Download PDFInfo
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- CN204145461U CN204145461U CN201420426536.5U CN201420426536U CN204145461U CN 204145461 U CN204145461 U CN 204145461U CN 201420426536 U CN201420426536 U CN 201420426536U CN 204145461 U CN204145461 U CN 204145461U
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- 230000008054 signal transmission Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model relates to a kind of high-frequency signal and launches modulation circuit, comprise VCO, frequency mixer, synthesizer, first coupler, phase shifter, SPDT, filter, limiting amplifier, numerical-control attenuator, SPST, second coupler and power splitter, wherein the output of VCO connects the input of frequency mixer, synthesizer output connects the input of the first coupler, first coupler output connects the input of phase shifter, the output of frequency mixer is all connected the input of SPDT with the output of phase shifter, filter is electrically connected successively after SPDT, limiting amplifier, numerical-control attenuator, SPST, second coupler and power splitter.The utility model can realize the process of 8-12GHz radiofrequency signal, and working band is wide, channel gain is high, in the structure of relative compact, achieve electromagnetic compatibility, can meet this application of frequency range wireless signal transmission in military and civilian.
Description
Technical field
The utility model relates to radio communication technology field, and especially a kind of high-frequency signal launches modulation circuit.
Background technology
Launch the important component part that modulation circuit is radio station, mainly complete the functions such as the amplification to signal of communication, frequency-selecting, modulation.At present, there is many defects and the deficiencies such as the waveform supported is limited, signal adaptation ability, interoperability difference in the transmitting modulation circuit that radio station uses.Modern radio receiver all has requirements at the higher level to communication speed, capacity, interoperability etc., and the standardization of equipment, miniaturization are the problems had much room for improvement at present.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of high-frequency signal and launches modulation circuit, and working band is wide, channel gain is high.
For reaching this purpose, the utility model by the following technical solutions: a kind of high-frequency signal launches modulation circuit, it is characterized in that, comprises VCO(Voltage-Controlled Oscillator, voltage controlled oscillator), frequency mixer, synthesizer, first coupler, phase shifter, SPDT(Single Pole Double Throw, single-pole double-throw switch (SPDT)), filter, limiting amplifier, numerical-control attenuator, SPST(Single Pole Single Throw, single-pole single-throw switch (SPST)), second coupler and power splitter, the output of wherein said VCO connects the input of described frequency mixer, and described synthesizer output connects the input of described first coupler, described first coupler output connects the input of described phase shifter, and the output of described frequency mixer is all connected the input of SPDT with the output of described phase shifter, is electrically connected described filter after described SPDT successively, described limiting amplifier, described numerical-control attenuator, described SPST, described second coupler and described power splitter.
The utility model also comprises the first detector be connected with described first coupler output, and the second detector be connected with described second coupler output.
Preferably, described phase shifter is wide-band microwave 5bit digital phase shifter.Described frequency mixer adopts model to be the chip of HMC553.
The utility model has following beneficial effect: the process that can realize 8-12GHz radiofrequency signal, working band is wide, channel gain is high, in the structure of relative compact, achieve electromagnetic compatibility, this application of frequency range wireless signal transmission in military and civilian can be met.
Accompanying drawing explanation
Fig. 1 is that the utility model high-frequency signal launches modulation circuit theory diagram.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, what XS03 port inputted is 100MHz ~ 300MHz reference signal, enters frequency mixer carry out mixing with the 8 ~ 12GHz high-frequency signal from VCO; XS04, XS05 port is input as identical 8 ~ 12GHz signal, synthesize a road through synthesizer, then be coupled by the first coupler and first detector, detection, export road 0.1V ~ 0.2V comparison signal, another road is through phase shift, and the interference signal exported with above-mentioned frequency mixer enters SPDT switch.The signal exported is selected to enter filter through switch, the signal of F limit ± 1GHz scope frequency range is suppressed, amplify through limiting amplifier again and follow-up numerical control attenuation, modulation, carry out coupling detection by the second coupler and second detector again, export road 0.1V ~ 0.2V comparison signal, another road radiofrequency signal is divided by XS01 and XS02 port output two-way 8 ~ 12GHz signal through merit.
Wherein phase shifter is based on the process of radiofrequency signal realizing 8-12GHz, realizes system gain flatness requirement, therefore selects wide-band microwave 5bit digital phase shifter.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned execution mode, also comprises the technical scheme be made up of above technical characteristic combination in any.
Claims (4)
1. a high-frequency signal launches modulation circuit, it is characterized in that, comprise VCO, frequency mixer, synthesizer, first coupler, phase shifter, SPDT, filter, limiting amplifier, numerical-control attenuator, SPST, second coupler and power splitter, the output of wherein said VCO connects the input of described frequency mixer, described synthesizer output connects the input of described first coupler, described first coupler output connects the input of described phase shifter, the output of described frequency mixer is all connected the input of SPDT with the output of described phase shifter, described filter is electrically connected successively after described SPDT, described limiting amplifier, described numerical-control attenuator, described SPST, described second coupler and described power splitter.
2. high-frequency signal according to claim 1 launches modulation circuit, it is characterized in that: also comprise the first detector be connected with described first coupler output, and the second detector be connected with described second coupler output.
3. high-frequency signal according to claim 1 and 2 launches modulation circuit, it is characterized in that: described phase shifter is wide-band microwave 5bit digital phase shifter.
4. high-frequency signal according to claim 1 and 2 launches modulation circuit, it is characterized in that: described frequency mixer adopts model to be the chip of HMC553.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420426536.5U CN204145461U (en) | 2014-07-31 | 2014-07-31 | A kind of high-frequency signal launches modulation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420426536.5U CN204145461U (en) | 2014-07-31 | 2014-07-31 | A kind of high-frequency signal launches modulation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204145461U true CN204145461U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420426536.5U Expired - Fee Related CN204145461U (en) | 2014-07-31 | 2014-07-31 | A kind of high-frequency signal launches modulation circuit |
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| Country | Link |
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| CN (1) | CN204145461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100654A (en) * | 2016-06-22 | 2016-11-09 | 安徽天兵电子科技有限公司 | A kind of X frequency range transmitter module of modularity microwave components |
-
2014
- 2014-07-31 CN CN201420426536.5U patent/CN204145461U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100654A (en) * | 2016-06-22 | 2016-11-09 | 安徽天兵电子科技有限公司 | A kind of X frequency range transmitter module of modularity microwave components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 |