CN205864394U - The signal receiving device of Ku/V waveband double-frequency radiometer - Google Patents
The signal receiving device of Ku/V waveband double-frequency radiometer Download PDFInfo
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- CN205864394U CN205864394U CN201620350340.1U CN201620350340U CN205864394U CN 205864394 U CN205864394 U CN 205864394U CN 201620350340 U CN201620350340 U CN 201620350340U CN 205864394 U CN205864394 U CN 205864394U
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- aperture centre
- frequency
- polarization separation
- parabola antenna
- corrugated horn
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Abstract
The signal receiving device of Ku/V waveband double-frequency radiometer, the first corrugated horn connects Ku band receiver by flexible waveguide, and the second corrugated horn connects V-band receiver by flexible waveguide；On the horizontal extension line of parabola antenna aperture centre, arranging the polarization separation grid parallel with parabola antenna actinal surface, polarization separation grid are centrally located on the horizontal extension line of parabola antenna aperture centre；The aperture centre of the second corrugated horn is positioned on the horizontal extension line of parabola antenna aperture centre, the aperture centre of the first corrugated horn is positioned at vertical with the horizontal extension line of parabola antenna aperture centre, and by the vertical line at the center of polarization separation grid, the aperture centre of the center of polarization separation grid, the aperture centre of the first corrugated horn and the second corrugated horn is generally aligned in the same plane interior.Make back-end processing equipment can obtain different stage and process the inherent association attributes between data, it is thus achieved that the additional accuracy in data handling procedure.
Description
Technical field
This utility model relates to a kind of wireless signal receiver, particularly relates to a kind of heterodyne system down coversion reception of wireless signals dress
Put.
Background technology
Mostly the prior art measurement to atmospheric environment, be measurement based on single band radiometer, and the collection that can form measurement data is wanted
Element discretization.Owing to requiring more and more higher to the certainty of measurement of atmospheric humidity, temperature, single band radiometer cannot realize necessity
Accurate test, then the most urgent to the demand of two-band radiometer.Existing frequency range Ku frequency range and the radiation of V-band Two bors d's oeuveres
Meter, owing to having higher frequency, the more conventional single-range radiometer of low frequency of its detection accuracy has tests effect more accurately.
But, waveband K u wave band, V-band belong to millimere-wave band, and the technology of headend equipment is required have higher requirement.How
Realize concordance and the stability of the scanning of front end signal receiving portion multichannel, be to expect to solve the technical problem that.
Utility model content
The purpose of this utility model is to provide the signal receiving device of a kind of Ku/V waveband double-frequency radiometer, solves existing signal and connects
The unwarrantable technical problem of the time consistency of two-frequency signal during receipts.
The signal receiving device of Ku/V waveband double-frequency radiometer of the present utility model, Ku frequency range front end reception of wireless signals processes logical
Road includes that first antenna feed, V-band front end reception of wireless signals treatment channel include the second antenna feed,
First antenna feed uses the first corrugated horn, the second antenna feed to use the second corrugated horn, the first ripple
Electromagnetic horn connects Ku band receiver by flexible waveguide, and the second corrugated horn connects V-band receiver by flexible waveguide；
Equipment box is set, the support frame of fixing equipment is set in casing, on upper front end, top and the rear end of casing
It is uncovered that portion forms reception, uses electromagnetic wave transparent material to cover reception uncovered, uses electromagnetic wave transparent material to utilize support frame to support；
At the internal left end of equipment box, arranging fixed frame, the joint with three degress of freedom that parabola antenna is fixed on fixed frame is solid
On fixed rack, it is locked；On the horizontal extension line of parabola antenna aperture centre, arrange parallel with parabola antenna actinal surface
Polarization separation grid, polarization separation grid are centrally located on the horizontal extension line of parabola antenna aperture centre；
Polarization separation grid are the most discoideus, the outer wall two ends of polarization separation grid, fix on the support frame in the way of rotation is fixing；
Outer wall two ends are positioned at the diametric(al) vertical with the horizontal extension line of parabola antenna aperture centre；
The aperture centre of the second corrugated horn is positioned on the horizontal extension line of parabola antenna aperture centre, the first corrugated horn
The aperture centre of antenna is positioned at vertical with the horizontal extension line of parabola antenna aperture centre, and hanging down by polarization separation grid center
On the vertical line of straight horizontal plane, the center of polarization separation grid, the aperture centre of the first corrugated horn and the second corrugated horn
Aperture centre and parabola antenna 55 aperture centre be generally aligned in the same plane in.
Ku band receiver, V-band receiver are fixed on equipment box inwall, temperature and humidity monitor equipment and the temperature being controlled
Humidity regulating equipment is fixed on equipment box inner bottom part.
Polarization separation grid are made up of edge rings and the grid being fixed therein；
Edge rings uses commercial-purity aluminium material；
Grid uses electromagnetic wave transparent material plectane, uniformly offers parallel rectangular through slot on the end face towards parabola antenna actinal surface,
In rectangular through slot, Electroplating Aluminum film fills rectangular through slot.
On the end face of parabola antenna actinal surface dorsad, offer concentric cannelure.
Cannelure spacing is identical with rectangular through slot spacing.
Electromagnetic wave transparent material uses Kevlar material.
The signal receiving device of Ku/V waveband double-frequency radiometer of the present utility model, uses appropriate design so that reception wireless
Signal can realize receiving time synchronized accurately so that the different ranges ginseng of the atmospheric physics state of double-frequency wireless signal feedback
Number has unrivaled dependency so that back-end processing equipment can obtain different stage and process the inherent association attributes between data,
Obtain the additional accuracy in data handling procedure.
Employing special construction designs so that the irradiation of two-frequency signal is enhanced, and obtains higher respective tones for signal receiving antenna
The signal receiving strength of section provides good initial condition.
Accompanying drawing explanation
Fig. 1 is the front end receiver electrical block diagram of this utility model Ku/V dual frequency radiation meter；
Fig. 2 is that the front end antenna feeder of this utility model Ku/V dual frequency radiation meter receives structural representation；
The front end antenna feeder Signal separator structural representation of Fig. 3 position this utility model Ku/V dual frequency radiation meter；
The enlarged partial sectional view of the front end antenna feeder Signal separator structure of Fig. 4 position this utility model Ku/V dual frequency radiation meter.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in detail.
As it is shown in figure 1, two the independent front end reception of wireless signals defining Ku/V dual frequency radiation meter in the present embodiment process
Passage, one is used for receiving Ku wave band (22～30GHz) signal and carrying out signal processing, forms digital signal sequences output,
Another is used for receiving V-band (51～59GHz) signal and carrying out signal processing, forms digital signal sequences output, front end
Reception of wireless signals treatment channel, by accessing identical frequency synthesizer, alternately obtains relevant frequency spectrum shift signal source.
Ku frequency range front end reception of wireless signals treatment channel includes first antenna feed 101, for receiving airspace radiation
The wireless signal of Ku wave band, connects follow-up Ku band receiver by flexible waveguide, and Ku band receiver signal processing is formed
The digital signal sequences output of low frequency signal；
Ku band receiver includes:
First directional coupler 102, for being sampled by the wireless signal of input, the power signal of coupling input carries out power
Distribution, it is achieved specific sampled signal isolation and output；
First isolator 103, for carrying out impedance matching with input feed, it is to avoid exports after frequency inter-modulation between adjacent channel；
First high frequency amplifier 104, for carrying out linear amplification by the high-frequency small power signal of the specific passband of input and export；
First frequency mixer 105, for receiving high-frequency signal and the medium standard frequency signal of input, forms IF output signal；Change
The value of signal, it is achieved frequency spectrum shift；
First wave filter 106, for the intermediate-freuqncy signal of input carried out frequency-selecting, power signal outside decay frequency-selecting scope is the most defeated
Go out；
First intermediate frequency amplifier 107, for carrying out power amplification by the intermediate-freuqncy signal of input and export；Meet the line of intermediate-freuqncy signal
Property amplify；
First detector 108, for the intermediate-freuqncy signal of input is carried out intermediate frequency quadrature detection, obtains the low frequency signal of high s/n ratio
Output；
First low-frequency amplifier 109, for carrying out signal gain lifting to the low frequency signal of input and export；Realize 100 to 2000
Linear amplification again；
First integral formula a/d converter 110, for the low frequency signal of input carries out modulus sampling, forms digital signal sequences defeated
Go out；
Oneth PIN switch 111, for periodically turning on the power of the first directional coupler 102 and Ku band noise standard 112
Signal transmission passage；
Ku band noise standard source 112, for providing the background power signal of Ku frequency range to export.
V-band front end reception of wireless signals treatment channel includes the second antenna feed 201, for receiving the V of airspace radiation
The wireless signal of wave band, connects follow-up V-band receiver by flexible waveguide, and V-band receiver signal process forms low frequency letter
Number digital signal sequences output；
V-band receiver includes:
Second directional coupler 202, for being sampled by the wireless signal of input, the power signal of coupling input carries out power
Distribution, it is achieved specific sampled signal isolation and output；
Second isolator 203, for carrying out impedance matching with input feed, it is to avoid exports after frequency inter-modulation between adjacent channel；
Second high frequency amplifier 204, for carrying out linear amplification by the high-frequency small power signal of the specific passband of input and export；
Second frequency mixer 205, for receiving high-frequency signal and the medium standard frequency signal of input, forms IF output signal；Change
The value of signal, it is achieved frequency spectrum shift；
Second wave filter 206, for the intermediate-freuqncy signal of input carried out frequency-selecting, power signal outside decay frequency-selecting scope is the most defeated
Go out；
Second intermediate frequency amplifier 207, for carrying out power amplification by the intermediate-freuqncy signal of input and export；Meet the line of intermediate-freuqncy signal
Property amplify；
Second detector 208, for the intermediate-freuqncy signal of input is carried out intermediate frequency quadrature detection, obtains the low frequency signal of high s/n ratio
Output；
Second low-frequency amplifier 209, for carrying out signal gain lifting to the low frequency signal of input and export；Realize 100 to 2000
Linear amplification again；
Second integral formula a/d converter 210, for the low frequency signal of input carries out modulus sampling, forms digital signal sequences
Output；
2nd PIN switch 211, for periodically turning on the merit of the second directional coupler 202 and Ku band noise standard source 112
Rate signal transmission passage；
V-band noise criteria 212, for providing the background power signal of V-band to export.
Also include:
Frequency synthesizer 301, is used for receiving control data, forms stabilizied reference frequency output, it is ensured that follow-up frequency synthesis
Signal intensity；
Resonance amplifier 302, for carrying out linear amplification by the reference frequency of input and export；
Passage switching switch 303, for periodically switching to different output ports according to control signal by input signal；
3rd wave filter 304, for the intermediate-freuqncy signal of input carried out frequency-selecting, power signal outside decay frequency-selecting scope is the most defeated
Go out；
Doubler 305, for the intermediate-freuqncy signal of input is carried out frequency multiplication, forms higher intermediate-freuqncy signal and exports.
First directional coupler the 102, first isolator the 103, first high frequency amplifier the 104, first frequency mixer 105, first is filtered
Ripple device the 106, first intermediate frequency amplifier 107, first detector the 108, first low-frequency amplifier 109 and first integral formula AD turn
Parallel operation 110 is sequentially connected with, and Ku band noise standard source 112 is by PIN switch 111 access first directional coupler 102
Another input；
Second directional coupler the 202, second isolator the 203, second high frequency amplifier the 204, second frequency mixer 205, second is filtered
Ripple device the 206, second intermediate frequency amplifier 207, second detector 208, second integral formula a/d converter 210 and the second low frequency are put
Big device 209 is sequentially connected with, and V-band noise criteria source 212 is by the 2nd PIN switch 211 access the second directional coupler 202
Another input；
Frequency synthesizer 301 accesses the input of passage switching switch 303, passage switching switch 303 by resonance amplifier 302
An outfan be directly connected to another input of the first frequency mixer 105, another outfan of passage switching switch 303
It is linked in sequence after the 3rd wave filter 304 and doubler 305 and accesses another input of the second frequency mixer 205.
In the present embodiment, Ku/V dual frequency radiation meter front end have employed the heterodyne system down-conversion receiver structure of frequency scanning, in order to protect
Demonstrate,proving at least 12 frequency channel measurements, local oscillator uses program control frequency to combine scan pattern, local oscillator switch switching select Ku wave band and V
Band receiver, wherein Ku wave band frequency is combined signal and is fed directly into Ku multi-band mixer, and V-band frequency combines signal through one times
Frequently device and wave filter feed-in V-band frequency mixer again.Ku passage and V passage intermediate frequency carry out after exporting detection, low put, integration and
AD gathers (input voltage range 5V, 16) and processes, and is finally output to AD data acquisition module and is converted to after digital signal carries out
Continuous process.
Utilize total frequency synthesizer 301, produce local oscillation signal and can keep the concordance of binary channel signal well,
As in figure 2 it is shown, first antenna feed 101 uses the first corrugated horn 51, the second antenna feed 201 to use second
Corrugated horn 53, the first corrugated horn 51 connects Ku band receiver 52, the second corrugated horn by flexible waveguide
Antenna 53 connects V-band receiver 54 by flexible waveguide；
Equipment box 61 is set, the support frame 62 of fixing equipment is set in casing 61, at upper front end, the top of casing
Receiving uncovered with upper rear end formation, use electromagnetic wave transparent material to cover reception uncovered, employing electromagnetic wave transparent material utilizes support frame 62 to support；
At the internal left end of equipment box 61, fixed frame 56 is set, parabola antenna 55 is fixed on the three of fixed frame 56
On the hinged fixed support of degree of freedom, it is locked；Joint with three degress of freedom fixed support ensures that parabola antenna 55 adjusts pointing direction
Time, parabola antenna 55 aperture centre keeps fixing, is not subjected to displacement；
On the horizontal extension line of parabola antenna 55 aperture centre, the polarization separation parallel with parabola antenna 55 actinal surface is set
Grid 59, polarization separation grid 59 are centrally located on the horizontal extension line of parabola antenna 55 aperture centre；Polarization separation grid 59
For the most discoideus；
The outer wall two ends of polarization separation grid 59, are fixed in support frame 62 in the way of rotation is fixing；
Outer wall two ends are positioned at the diametric(al) vertical with the horizontal extension line of parabola antenna 55 aperture centre；
Electromagnetic wave transparent material uses Kevlar thin film；
The aperture centre of the second corrugated horn 53 is positioned on the horizontal extension line of parabola antenna 55 aperture centre, first wave
The aperture centre of stricture of vagina electromagnetic horn 51 is positioned at vertical with the horizontal extension line of parabola antenna 55 aperture centre, and by polarization point
On the vertical line of the vertical level at Li Shan 59 center, the center of polarization separation grid 59, the first corrugated horn 51 actinal surface in
In the aperture centre of the heart and the second corrugated horn 53 and parabola antenna 55 aperture centre are generally aligned in the same plane；
Ku band receiver 52, V-band receiver 54 are fixed on equipment box 61 inwall, temperature and humidity monitor equipment 57 (as
The PID/feedback circuit of integrated temperature sensor and humidity sensor) and the temperature and humidity regulation equipment 58 that is controlled (such as variable-frequency constant
Constant temperature and humidity air-conditioning) it is fixed on equipment box 61 inner bottom part.
Incidence wave is reflexed to polarization separation grid 59 by parabola antenna 55, and incidence wave is divided into the two of horizontal polarization and vertical polarization
Shu Bo, respectively enters Ku band receiver 52, the corrugated horn of V-band receiver 54, thus completes two wave bands
Signal receives.This structure parabola is kept completely separate with corrugated horn, receiver, it is achieved simple in construction, and turntable load is only parabolic
Reflecting surface, reduces turntable cost.Owing to receiver can be kept completely separate with other structure, can the most heat insulation, individually carry out temperature
Degree controls, it is achieved two-stage temperature control, improves receiver temperature control precision.All output signal interfaces use winding displacement or its
He exports unity of form.
By the appropriate design to feedback meta structure, it is ensured that the stability that signal receives, it is ensured that signal RX path equidistant,
Ensure to eliminate physical background noise.
As it is shown on figure 3, polarization separation grid 59 are made up of edge rings 71 and the grid 72 being fixed therein；
Edge rings 71 uses commercial-purity aluminium material；Ensure thermal diffusivity, to reduce the thermal deformation of reflecting surface；
Grid 72 uses Kevlar plectane, uniformly offers parallel rectangular through slot on the end face towards parabola antenna 55 actinal surface,
In rectangular through slot, Electroplating Aluminum film 73 fills rectangular through slot, on the end face of parabola antenna 55 actinal surface dorsad, offers concentric
Cannelure 74；
Cannelure 74 spacing is identical with rectangular through slot spacing.
Utilize above polarization separation grid 59 can weaken the thermal deformation of reflecting surface when reflecting a kind of wave beam, keep the most steady of grid
Qualitative avoiding the occurrence of leakage penetrates loss, reduces signal intensity, and cannelure 74 sight line utilizes the alternately loss difference shape that electromagnetic wave transparent material is small
The wave beam becoming limited converges, and improves the signal intensity in per surface area.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model is not limited to
This, any those familiar with the art in the technical scope that this utility model discloses, the change that can readily occur in or
Replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be wanted with right
The protection domain seeking book is as the criterion.
Claims (6)
- The signal receiving device of 1.Ku/V waveband double-frequency radiometer, Ku frequency range front end reception of wireless signals treatment channel includes first Antenna feed, V-band front end reception of wireless signals treatment channel includes the second antenna feed, it is characterised in that:First antenna feed uses the first corrugated horn, the second antenna feed to use the second corrugated horn, the first ripple Electromagnetic horn connects Ku band receiver by flexible waveguide, and the second corrugated horn connects V-band receiver by flexible waveguide；Equipment box is set, the support frame of fixing equipment is set in casing, on upper front end, top and the rear end of casing It is uncovered that portion forms reception, uses electromagnetic wave transparent material to cover reception uncovered, uses electromagnetic wave transparent material to utilize support frame to support；At the internal left end of equipment box, arranging fixed frame, the joint with three degress of freedom that parabola antenna is fixed on fixed frame is solid On fixed rack, it is locked；On the horizontal extension line of parabola antenna aperture centre, arrange parallel with parabola antenna actinal surface Polarization separation grid, polarization separation grid are centrally located on the horizontal extension line of parabola antenna aperture centre；Polarization separation grid are the most discoideus, the outer wall two ends of polarization separation grid, fix on the support frame in the way of rotation is fixing； Outer wall two ends are positioned at the diametric(al) vertical with the horizontal extension line of parabola antenna aperture centre；The aperture centre of the second corrugated horn is positioned on the horizontal extension line of parabola antenna aperture centre, the first corrugated horn The aperture centre of antenna is positioned at vertical with the horizontal extension line of parabola antenna aperture centre, and hanging down by polarization separation grid center On the vertical line of straight horizontal plane, the center of polarization separation grid, the aperture centre of the first corrugated horn and the second corrugated horn Aperture centre and parabola antenna 55 aperture centre be generally aligned in the same plane in.
- 2. the signal receiving device of Ku/V waveband double-frequency radiometer as claimed in claim 1, it is characterised in that: Ku wave band Receiver, V-band receiver are fixed on equipment box inwall, and temperature and humidity monitor equipment and the temperature and humidity regulation being controlled set For being fixed on equipment box inner bottom part.
- 3. the signal receiving device of Ku/V waveband double-frequency radiometer as claimed in claim 2, it is characterised in that: polarization separation Grid are made up of edge rings and the grid being fixed therein；Edge rings uses commercial-purity aluminium material；Grid uses electromagnetic wave transparent material plectane, uniformly offers parallel rectangular through slot on the end face towards parabola antenna actinal surface, In rectangular through slot, Electroplating Aluminum film fills rectangular through slot.
- 4. the signal receiving device of Ku/V waveband double-frequency radiometer as claimed in claim 3, it is characterised in that: throwing dorsad On the end face of object plane Antenna aperture, offer concentric cannelure.
- 5. the signal receiving device of Ku/V waveband double-frequency radiometer as claimed in claim 4, it is characterised in that: between cannelure Away from identical with rectangular through slot spacing.
- 6. the signal receiving device of the Ku/V waveband double-frequency radiometer as described in claim 1 to 5 is arbitrary, it is characterised in that: Electromagnetic wave transparent material uses Kevlar material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620350340.1U CN205864394U (en) | 2016-04-22 | 2016-04-22 | The signal receiving device of Ku/V waveband double-frequency radiometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620350340.1U CN205864394U (en) | 2016-04-22 | 2016-04-22 | The signal receiving device of Ku/V waveband double-frequency radiometer |
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| CN205864394U true CN205864394U (en) | 2017-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970069A (en) * | 2020-08-18 | 2020-11-20 | 成都爱科特科技发展有限公司 | Satellite signal x and ku frequency band spectrum monitoring sensor and monitoring method |
-
2016
- 2016-04-22 CN CN201620350340.1U patent/CN205864394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970069A (en) * | 2020-08-18 | 2020-11-20 | 成都爱科特科技发展有限公司 | Satellite signal x and ku frequency band spectrum monitoring sensor and monitoring method |
| CN111970069B (en) * | 2020-08-18 | 2022-06-21 | 成都爱科特科技发展有限公司 | Satellite signal x and ku frequency band spectrum monitoring sensor and monitoring method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190514 Address after: Room A205, 1st Floor, Building No. 1, Ruiwang Fenjia 12 (West Court), Haidian District, Beijing Patentee after: Beijing Huasheng Panda Technology Co., Ltd. Address before: Room 207, West Fourth Floor, 83 Fuxing Road, Haidian District, Beijing 100039 Patentee before: Beijing Huasheng Xinrui Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210809 Address after: 610000 Room 201, floor 2, unit 4, building 6, No. 88, Tianchen Road, hi tech Zone, Chengdu, Sichuan Patentee after: Chengdu Dingsheng LianBo Technology Co.,Ltd. Address before: Room A205, 1st Floor, Building No. 1, Ruiwang Fenjia 12 (West Court), Haidian District, Beijing Patentee before: Beijing Huasheng Panda Technology Co.,Ltd. |