CN208836171U - X-band impulse modulation transceiver machine - Google Patents
X-band impulse modulation transceiver machine Download PDFInfo
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- CN208836171U CN208836171U CN201821829240.2U CN201821829240U CN208836171U CN 208836171 U CN208836171 U CN 208836171U CN 201821829240 U CN201821829240 U CN 201821829240U CN 208836171 U CN208836171 U CN 208836171U
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- amplifier
- voltage
- attenuator
- transmitting unit
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Abstract
The utility model discloses a kind of X-band impulse modulation transceiver machines, including transmitting unit and receiving unit, wherein the local oscillation signal of transmitting unit and receiving unit is respectively from the radiofrequency signal of respectively integrated PLL phase-locked loop chip output, and single-chip microcomputer output is separately connected the control terminal of two integrated PLL phase-locked loop chips and the control terminal of transmitting unit digital pad；The power amplifier control end of transmitting unit connects pulse control circuit；Single-chip microcontroller controls the output frequency of integrated PLL phase-locked loop chip.The utility model transmitting unit increases pulse control circuit, and digital pad is controlled by microcontroller serial port, controllable dynamic range is big, the voltage-controlled attenuator of receiving unit is controlled by external VGC signal, noise coefficient is small, high gain, dynamic range are big, the features such as the utility model has circuit design simple, small in size, high reliablity.
Description
Technical field
The utility model belongs to technology for radio frequency field, and in particular to a kind of X-band impulse modulation transceiver machine.
Background technique
Development communication technologies are rapid in recent years, and microwave transmitting and receiving all-in-one machine is as radar, navigation, electronic countermeasure, communication system
Critical component it is more and more important, a therefore high performance transceiver machine is most important in a communications system.The mesh of communication
Be remote transmitting information, baseband signal closely can be transmitted directly, but be transmitted at a distance over the wireless channel,
Modulation is just had to pass through to move base-band signal spectrum on radio frequency.
Utility model content
The utility model technical issues that need to address, which are to provide one kind, has the function of impulse modulation, with good anti-dry
The X-band impulse modulation transceiver machine of immunity.
To solve the above problems, technical solution adopted in the utility model is:
A kind of X-band impulse modulation transceiver machine, including transmitting unit and receiving unit, wherein transmitting unit include according to
Integrated PLL phase-locked loop chip, attenuator, amplifier, bandpass filter, amplifier, attenuator, the amplifier, number of secondary connection
Attenuator, attenuator, power amplifier, bandpass filter, isolator, receiving unit include sequentially connected isolator, low noise
Acoustic amplifier, amplifier, attenuator, frequency mixer, amplifier, voltage-controlled attenuator, low-pass filter, voltage-controlled declines at bandpass filter
Subtract device, low-pass filter, amplifier, low-pass filter, the input terminal of frequency mixer connects the defeated of another integrated PLL phase-locked loop chip
Outlet, single-chip microcomputer output are separately connected the control terminal and transmitting unit digital pad of two integrated PLL phase-locked loop chips
Control terminal；The power amplifier control end of transmitting unit connects pulse control circuit；The local oscillator of transmitting unit and receiving unit
Signal is the radiofrequency signal of respectively integrated PLL phase-locked loop chip output, and single-chip microcontroller controls the output frequency of integrated PLL phase-locked loop chip
Rate.
Further, the pulse control circuit includes sequentially connected gate circuit and power supply driver, and modulation pulse is logical
Circuit control of moving into one's husband's household upon marriage power supply driver, and then control whether power amplifier works.
Further, the final power pipe of transmitting unit intermediate power amplifier is exported using high P-1, the chip of high-gain.
Further, the low-noise amplifier of receiving unit only has the low-noise amplifier of 0.5dB using noise coefficient.
Further, receiving unit is set there are two voltage-controlled attenuator, forms the voltage-controlled decaying of two-stage, voltage-controlled attenuator is by outside
The control of VGC voltage, controls voltage range 0V~5V, attenuation range >=30dB of every grade of voltage-controlled attenuator, the voltage-controlled attenuation grade of two-stage
Connection >=60dB.
The beneficial effects of adopting the technical scheme are that
The utility model transmitting unit increases pulse control circuit, and is controlled by microcontroller serial port to digital pad
System can control dynamic range big, and the voltage-controlled attenuator of receiving unit is controlled by external VGC signal, noise coefficient is small, high gain,
The features such as dynamic range is big, and the utility model has circuit design simple, small in size, high reliablity.
Detailed description of the invention
Fig. 1 is the utility model principle block diagram.
Specific embodiment
Utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, the utility model includes transmitting unit and receiving unit, wherein transmitting unit includes sequentially connected
Integrated PLL phase-locked loop chip, amplifier, bandpass filter, amplifier, attenuator, amplifier, digital pad, declines at attenuator
Subtract device, power amplifier, bandpass filter, isolator, receiving unit include sequentially connected isolator, low-noise amplifier,
Bandpass filter, amplifier, attenuator, frequency mixer, amplifier, voltage-controlled attenuator, low-pass filter, voltage-controlled attenuator, low pass
Filter, amplifier, low-pass filter, the input terminal of frequency mixer connect the output end of another integrated PLL phase-locked loop chip, monolithic
Machine output end is separately connected the control terminal of two integrated PLL phase-locked loop chips and the control terminal of transmitting unit digital pad；
The power amplifier control end of transmitting unit connects pulse control circuit；The local oscillation signal of transmitting unit and receiving unit is respective
The radiofrequency signal of integrated PLL phase-locked loop chip output, 10MHz crystal oscillator provide reference source, and single-chip microcontroller controls integrated PLL locking phase ring core
The output frequency of piece.
Transmitting unit exports X-band radiofrequency signal by integrated PLL phaselocked loop first, filters by attenuator, amplifier, band logical
Enter digital pad after wave device, amplifier, attenuator, amplifier, the attenuation of digital pad is by serial communication by list
The control of piece machine, attenuation are not less than 30dB.Signal enters attenuator, power amplifier, band logical filter after digital pad
Wave device, isolator and final output.
For the transmission range for guaranteeing the utility model all-in-one machine, the power amplifier final stage power tube of transmitting unit is using high
P-1 output, the chip of high-gain, final transmission power are not less than 40dBm.
For the impulse modulation for realizing transmitting signal, pulse control circuit is increased, the pulse control circuit includes successively
The gate circuit and power supply driver of connection, modulated pulse signal enter gate circuit, and power supply is entered after gate circuit level conversion and is driven
Dynamic device, power supply driver controls the power supply of power amplifier, to control whether power amplifier works, arteries and veins
The pulse width of modulated signal, period can be changed as needed, and radio frequency is finally made to export modulated pulse signal.
Receiving unit RF pulse signal first passes around isolator, low-noise amplifier, bandpass filter, amplifier, declines
Subtract and enter frequency mixer after device, be down-converted to intermediate-freuqncy signal output after mixed, intermediate-freuqncy signal by amplifier, voltage-controlled attenuator,
It is exported after low-pass filter, voltage-controlled attenuator, low-pass filter, amplifier, low-pass filter.
For the noise coefficient for improving receiving unit, receiving unit front end first order amplifier (low-noise amplifier) is used and is made an uproar
Sonic system number only has the low-noise amplifier of 0.5dB.Remaining amplifier selects high-gain chip, guarantees receives link maximum gain not
Less than 80dB.Receiving unit is set there are two voltage-controlled attenuator simultaneously, forms the voltage-controlled decaying of two-stage, voltage-controlled attenuator is by external VGC
Voltage control, controls voltage range 0V~5V.The attenuation range of every grade of voltage-controlled attenuator is not less than 30dB, and two-stage cascade is not less than
60dB, to ensure that the dynamic range of entire receives link not less than 60dB.
The utility model is a kind of pulse signal modulation mode based on changeable pulse width, X-band radio frequency continuous wave
It is controlled by pulse signal " 1 " and " 0 ", when pulse signal is " 1 ", transmission final stage power tube is started to work, and exports continuous wave；When
When pulse signal is " 0 ", power tube stops working, no output.This pulse signal modulation system, improves transceiver machine
Anti-interference.RF pulse signal is down-converted to intermediate-freuqncy signal output, receiving portion tool by transceiver machine receiving portion simultaneously
There is the features such as high-gain, high dynamic range.
Claims (5)
1.X band pulse modulates transceiver machine, it is characterised in that: including transmitting unit and receiving unit, wherein transmitting unit
Including sequentially connected integrated PLL phase-locked loop chip, attenuator, amplifier, bandpass filter, amplifier, attenuator, amplification
Device, digital pad, attenuator, power amplifier, bandpass filter, isolator, receiving unit include sequentially connected isolation
Device, low-noise amplifier, bandpass filter, amplifier, attenuator, frequency mixer, amplifier, voltage-controlled attenuator, low-pass filter,
The input terminal of voltage-controlled attenuator, low-pass filter, amplifier, low-pass filter, frequency mixer connects another integrated PLL locking phase ring core
The output end of piece, single-chip microcomputer output are separately connected the control terminal and transmitting unit number of two integrated PLL phase-locked loop chips
The control terminal of attenuator；The power amplifier control end of transmitting unit connects pulse control circuit；Transmitting unit and receiving unit
Local oscillation signal be respectively integrated PLL phase-locked loop chip output radiofrequency signal, single-chip microcontroller controls integrated PLL phase-locked loop chip
Output frequency.
2. X-band impulse modulation transceiver machine according to claim 1, it is characterised in that: the pulse control circuit
Including sequentially connected gate circuit and power supply driver, pulse is modulated by gate circuit and controls power supply driver, and then to power
Whether amplifier, which works, is controlled.
3. X-band impulse modulation transceiver machine according to claim 1 or 2, it is characterised in that: power in transmitting unit
The final power pipe of amplifier is exported using high P-1, the chip of high-gain.
4. X-band impulse modulation transceiver machine according to claim 1 or 2, it is characterised in that: the low noise of receiving unit
Acoustic amplifier only has the low-noise amplifier of 0.5dB using noise coefficient.
5. X-band impulse modulation transceiver machine according to claim 4, it is characterised in that: there are two receiving unit is set
Voltage-controlled attenuator forms the voltage-controlled decaying of two-stage, and voltage-controlled attenuator is controlled by external VGC voltage, controls voltage range 0V~5V, often
Attenuation range >=the 30dB, the voltage-controlled decaying cascade >=60dB of two-stage of grade voltage-controlled attenuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821829240.2U CN208836171U (en) | 2018-11-07 | 2018-11-07 | X-band impulse modulation transceiver machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821829240.2U CN208836171U (en) | 2018-11-07 | 2018-11-07 | X-band impulse modulation transceiver machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208836171U true CN208836171U (en) | 2019-05-07 |
Family
ID=66320017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821829240.2U Expired - Fee Related CN208836171U (en) | 2018-11-07 | 2018-11-07 | X-band impulse modulation transceiver machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208836171U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050080A (en) * | 2021-02-05 | 2021-06-29 | 北京冠群桦成信息技术有限公司 | Single-transmitting and double-receiving millimeter wave frequency modulation continuous wave transmitting and receiving system |
| CN113064148A (en) * | 2021-02-05 | 2021-07-02 | 北京冠群桦成信息技术有限公司 | Single-transmitting single-receiving millimeter wave frequency modulation continuous wave receiving and transmitting system |
-
2018
- 2018-11-07 CN CN201821829240.2U patent/CN208836171U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050080A (en) * | 2021-02-05 | 2021-06-29 | 北京冠群桦成信息技术有限公司 | Single-transmitting and double-receiving millimeter wave frequency modulation continuous wave transmitting and receiving system |
| CN113064148A (en) * | 2021-02-05 | 2021-07-02 | 北京冠群桦成信息技术有限公司 | Single-transmitting single-receiving millimeter wave frequency modulation continuous wave receiving and transmitting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20211107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |