CN102904588A - Ku band receiver for satellites - Google Patents
Ku band receiver for satellites Download PDFInfo
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- CN102904588A CN102904588A CN2012102821070A CN201210282107A CN102904588A CN 102904588 A CN102904588 A CN 102904588A CN 2012102821070 A CN2012102821070 A CN 2012102821070A CN 201210282107 A CN201210282107 A CN 201210282107A CN 102904588 A CN102904588 A CN 102904588A
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Abstract
The invention discloses a Ku band receiver for satellites. The receiver comprises a Ku band receiver front end, an intermediate-frequency (IF) receiver and an I/Q demodulator, wherein after input radio-frequency (RF) signals with dynamic ranges being minus 110dBm-minus 45dBm and bandwidth being +/-160MHz are subjected to amplification, filtration, mixing and the like by the Ku band receiver front end, IF signals with bandwidth being 30MHz are generated, then after the IF signals are subjected to amplification, mixing, gain control, filtration and the like by the IF receiver, second IF signals with bandwidth being 3MHz are generated, and then the second IF signals are processed by the I/Q demodulator to generate I/Q signals for a posterior-stage digital unit to use; and the total gain of the receiver is more than 120dB. The receiver has the advantages of brief component circuit scheme, excellent performance, high reliability, large dynamic range and high sensitivity, and the performance of the existing receiver for satellites is improved.
Description
Technical field
The present invention relates to the product design of space flight Microwave Active and make the field, mainly relate to a kind of monitoring and investigation marine environment satellite radar altimeter subsystem of being applied to.
Background technology
Star with Ku wave band receiver with antenna reception to Ku band signal (13GHz～14GHz) produce i/q signal by twice down-conversion, and be amplified to the radar altitude scoring system of certain level output.At present domestic rarely have development to record and report.Abroad from open channel understand American-European method cooperation the JASON-2 Seeds of First Post-flight altimeter receiver, product adopts the superhet system substantially, realizes the frequency spectrum shift function by the double conversion mode.It can not be suitable for China's marine environment satellite radar altimeter subsystem, and it is imperative that development is applicable to the receiver used instead China ocean.
Summary of the invention
Goal of the invention technical problem solved by the invention is the marine environment satellite radar altimeter subsystem index request for China, and a kind of large dynamic, high sensitivity star receiver is provided.
Technical scheme: be the technical solution problem, the technical solution used in the present invention is:
A kind of star Ku wave band receiver, formed by Ku wave band receiving front-end, intermediate-frequency receiver and I/Q receiver, the Ku waveband radio frequency input signal that the radio frequency link of described Ku wave band receiving front-end is inputted the successively Ku wave band local oscillation signal through exporting with local oscillator link one behind waveguide isolator, low noise amplifier, the cavity body filter is undertaken exporting after the mixing by frequency mixer, and the intermediate-freuqncy signal that frequency mixer is exported is exported intermediate-freuqncy signal behind intermediate frequency amplifier; The local oscillation signal that one intermediate frequency input signal of intermediate-frequency receiver radio frequency link is exported with local oscillator link two behind an intermediate-frequency filter, an intermediate frequency amplifier is successively undertaken exporting after the mixing by frequency mixer, and frequency mixer institute output signal is output two intermediate-freuqncy signals behind two intermediate frequency amplifiers, numerical-control attenuator, two intermediate frequency amplifying units, two intermediate-frequency filters, two intermediate frequency amplifiers successively; Two intermediate-freuqncy signals of i/q demodulator radio frequency link are successively through exporting i/q signal behind final stage filter, two intermediate frequency amplifiers, i/q demodulator and the operational amplifier.
Remote unit is comprised of Medium link device, detecting circuit and amplifier, and two intermediate-freuqncy signals of output are by coupler, successively through exporting detecting circuit behind amplifier, wave detector, the operational amplifier as telemetered signal.
The rf input port of described radio frequency link is BJ140 waveguide mouth; The input signal interface of frequency mixer is the SMA interface; Described receiver power supply interface is little rectangular receptacle interface.
The integrated constructed of aluminium of the cavity body structure of described assembly.
Be provided with on the described secondary power supply power supply for+12V and+5V and electric current correspond to the power interface of 200mA and 50mA.
Beneficial effect: the present invention compared with prior art has following advantage:
1, circuitry is simple.
Thereby 2, select broadband device to guarantee that the amplitude flatness is better in the signal band.
3, reliability is high, and 3 years reliabilitys of receiver are 0.976.For the Assurance component reliability, assembly is carried out reliability design, adopt Ansys software to carry out heat, Mechanics Simulation.
4, input/output interface connects isolator, so that interface and outside connecting circuit have good coupling, eliminates simultaneously the index deterioration that the external circuit load causes the assembly traction.
5, design preferably filter of squareness factor, improve complete machine index performance.
6, the complete machine scheme is succinct, is easy to realize.
7, volume, weight and main electrical performance indexes are suitable with same kind of products at abroad.
8, low in energy consumption, power consumption maximum of the present invention only is 2W.
Description of drawings
Fig. 1 is the theory diagram of radio frequency link of the present invention.
Wherein: 1, radio frequency link; 2, waveguide isolator; 3, low noise amplifier; 4, radio-frequency filter; 5, frequency mixer; 6, intermediate frequency amplifier; 7, an intermediate-frequency filter; 8, an intermediate frequency amplifier; 9, frequency mixer; 10, two intermediate frequency amplifiers; 11, numerical-control attenuator; 12, two intermediate frequency amplifying units; 13, two intermediate-frequency filters; 14, final amplifier; 15, Surface Acoustic Wave Filter; 16, two intermediate frequency amplifiers; 17, i/q demodulator; 18, operational amplifier.
Embodiment
Below in conjunction with Figure of description the present invention is described in further detail:
As shown in Figure 1, the present invention is comprised of Ku wave band receiving front-end, intermediate-frequency receiver and i/q demodulator.The input radio frequency signal (dynamic range :-110dBm～-45dBm, bandwidth: ± 160MHz) through after the functions such as the amplification of Ku wave band receiving front-end, filtering, mixing, produce an intermediate-freuqncy signal (signal bandwidth: 30MHz), after passing through again the function such as amplification, mixing, gain control, filtering of intermediate-frequency receiver, produce two intermediate-freuqncy signals (signal bandwidth: 3MHz), pass through again i/q demodulator, produce i/q signal, use for the rear class digital units, the receiver overall gain is greater than 120dB.It is characterized in that: the Ku wave band local oscillation signal that the Ku waveband radio frequency input signal that the radio frequency link (1) of described Ku wave band receiving front-end is inputted is exported with local oscillator link one behind waveguide isolator (2), low noise amplifier (3), cavity body filter (4) is successively undertaken exporting after the mixing by frequency mixer (5), and the intermediate-freuqncy signal that frequency mixer is exported is exported intermediate-freuqncy signal behind intermediate frequency amplifier (6).The local oscillation signal that one intermediate frequency input signal of intermediate-frequency receiver radio frequency link (1) is exported with local oscillator link two behind an intermediate-frequency filter (7), an intermediate frequency amplifier (8) is successively undertaken exporting after the mixing by frequency mixer (9), and frequency mixer institute output signal is output two intermediate-freuqncy signals behind two intermediate frequency amplifiers (10), numerical-control attenuator (11), two intermediate frequency amplifying units (12), two intermediate-frequency filters (13), two intermediate frequency amplifiers (14) successively.Two intermediate-freuqncy signals of i/q demodulator radio frequency link (1) are exported i/q signal after passing through successively final stage filter (15), two intermediate frequency amplifiers (16), i/q demodulator (17) and operational amplifier (18).Wherein, two intermediate-freuqncy signals produce telemetered signal through overcoupling part signal.
The field effect transistor that described low noise amplifier adopts Fujitsu company to produce, its noise factor is less than 1.0dB.The frequency mixer of the described frequency conversion first time is selected the Ku wave band frequency mixer of Marki company; The frequency mixer of for the second time frequency conversion is selected the frequency mixer of Mini company.A described intermediate frequency amplifying unit adopts the SMA Series P wave band of 1 grade of M/A COM Inc. to amplify monolithic; Two intermediate frequency amplifying units divide level Four to amplify, and the SMA series radio frequency that all adopts M/A COM Inc. to produce amplifies monolithic.Wherein, front dual-stage amplifier requires low, the height that gains of noise factor, and final stage is amplified monolithic and required output P
-1Greater than 10dBm.Remote unit is comprised of Medium link device, detecting circuit and amplifier, and two intermediate-freuqncy signals of output are by coupler, successively through exporting detecting circuit behind amplifier, wave detector, the operational amplifier as telemetered signal.The filter of described limiting bandwidth adopts has the Surface Acoustic Wave Filter of fabulous squareness factor.Described i/q demodulator adopts the intermediate frequency i/q demodulator of Mini company.
The rf input port of described radio frequency link is BJ140 waveguide mouth; The reference signal input interface of local oscillator link is the SMA interface; The interface of the last power supply of described secondary power supply and star is little rectangular receptacle interface.Described radio frequency input/output interface design impedance is 50 Ω, and front and back are every straight input and output; Power interface serial connection decoupling network; Detect delivery outlet serial connection protective circuit.
The measure that described high reliability adopts comprises heat radiation and drag measure.Cooling measure comprises: select the printed board with space travel experience; Remove printed board bottom surface solder mask; Increase the ground connection via hole of some; Increase the density of installing hole between printed board and the casing; The copper face that covers that increases printing board surface amasss; Design and installation facial plane degree 0.1mm/100mm, roughness is less than 3.2 μ m.
The cavity body structure of described assembly is integral structure, from a whole aluminium, carries out rational configuration and layout, forms many microwave cavities through being machined to; Sidewall and lug place in fixed angles adopt larger circular arc excessive; Deepen the depth of thread of all hold-down screws and disperse the stressed screw stress overloading of avoiding.
Be provided with on the described secondary power supply power supply for+12V and+5V and electric current correspond to the power interface of 200mA and 50mA.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all belongs in the protection range of technical solution of the present invention.
Claims (5)
1. a star is with Ku wave band receiver, it is characterized in that: formed by Ku wave band receiving front-end, intermediate-frequency receiver and I/Q receiver, the Ku wave band local oscillation signal that the Ku waveband radio frequency input signal that the radio frequency link (1) of described Ku wave band receiving front-end is inputted is exported with local oscillator link one behind waveguide isolator (2), low noise amplifier (3), cavity body filter (4) is successively undertaken exporting after the mixing by frequency mixer (5), and the intermediate-freuqncy signal that frequency mixer is exported is exported intermediate-freuqncy signal behind intermediate frequency amplifier (6); The local oscillation signal that one intermediate frequency input signal of intermediate-frequency receiver radio frequency link (1) is exported with local oscillator link two behind an intermediate-frequency filter (7), an intermediate frequency amplifier (8) is successively undertaken exporting after the mixing by frequency mixer (9), and frequency mixer institute output signal is output two intermediate-freuqncy signals behind two intermediate frequency amplifiers (10), numerical-control attenuator (11), two intermediate frequency amplifying units (12), two intermediate-frequency filters (13), two intermediate frequency amplifiers (14) successively; Two intermediate-freuqncy signals of i/q demodulator radio frequency link (1) are exported i/q signal after passing through successively final stage filter (15), two intermediate frequency amplifiers (16), i/q demodulator (17) and operational amplifier (18).
2. a kind of star according to claim 1 is with Ku wave band receiver, it is characterized in that: remote unit is comprised of Medium link device, detecting circuit and amplifier, two intermediate-freuqncy signals of output are by coupler, successively through exporting detecting circuit behind amplifier, wave detector, the operational amplifier as telemetered signal.
3. a kind of star according to claim 1 is with Ku wave band receiver, and it is characterized in that: the rf input port of described radio frequency link is BJ140 waveguide mouth; The input signal interface of frequency mixer is the SMA interface; The interface of described receiver power supply is little rectangular receptacle interface.
4. a kind of star according to claim 1 is characterized in that: the integrated constructed of aluminium of the cavity body structure of described assembly with Ku wave band receiver.
5. a kind of star according to claim 1 is characterized in that with Ku wave band receiver: be provided with on the described secondary power supply power supply for+12V and+5V and electric current correspond to the power interface of 200mA and 50mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102821070A CN102904588A (en) | 2012-08-09 | 2012-08-09 | Ku band receiver for satellites |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102821070A CN102904588A (en) | 2012-08-09 | 2012-08-09 | Ku band receiver for satellites |
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| CN102904588A true CN102904588A (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102821070A Pending CN102904588A (en) | 2012-08-09 | 2012-08-09 | Ku band receiver for satellites |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579200A (en) * | 2014-12-22 | 2015-04-29 | 中国电子科技集团公司第五十四研究所 | Ku-waveband power amplifier |
| CN109150214A (en) * | 2018-10-12 | 2019-01-04 | 南京屹信航天科技有限公司 | A kind of miniaturization ODU transmission channel circuit |
| CN109167608A (en) * | 2018-10-10 | 2019-01-08 | 北京遥感设备研究所 | A kind of miniaturization S-Ku wave band Ultra-Wideband RF Receiver |
| CN109728829A (en) * | 2018-12-29 | 2019-05-07 | 同方电子科技有限公司 | A kind of high performance wideband Receiver Module |
| CN110429952A (en) * | 2019-06-04 | 2019-11-08 | 广东圣大电子有限公司 | A kind of comprehensive radio-frequency system of Ku wave band |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631171B1 (en) * | 1998-08-06 | 2003-10-07 | Alps Electric Co., Ltd. | QPSK modulation signal receiving unit |
| CN201114052Y (en) * | 2007-06-06 | 2008-09-10 | 安徽四创电子股份有限公司 | Ku double local oscillation multi-output system |
| CN101552881A (en) * | 2009-05-13 | 2009-10-07 | 桂林市思奇通信设备有限公司 | Television signal combining receiving method and television signal combining receiving system |
| CN201414125Y (en) * | 2009-04-15 | 2010-02-24 | 中国电子科技集团公司第五十四研究所 | Large dynamic range receiver |
| CN101944924A (en) * | 2010-09-30 | 2011-01-12 | 东南大学 | Broadband MIMO radio frequency transceiving system for next-generation wireless communication network |
| CN201774528U (en) * | 2010-01-22 | 2011-03-23 | 南京誉葆科技有限公司 | Integrated Ku-waveband comprehensive digital coding instruction transmitting and receiving device |
-
2012
- 2012-08-09 CN CN2012102821070A patent/CN102904588A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631171B1 (en) * | 1998-08-06 | 2003-10-07 | Alps Electric Co., Ltd. | QPSK modulation signal receiving unit |
| CN201114052Y (en) * | 2007-06-06 | 2008-09-10 | 安徽四创电子股份有限公司 | Ku double local oscillation multi-output system |
| CN201414125Y (en) * | 2009-04-15 | 2010-02-24 | 中国电子科技集团公司第五十四研究所 | Large dynamic range receiver |
| CN101552881A (en) * | 2009-05-13 | 2009-10-07 | 桂林市思奇通信设备有限公司 | Television signal combining receiving method and television signal combining receiving system |
| CN201774528U (en) * | 2010-01-22 | 2011-03-23 | 南京誉葆科技有限公司 | Integrated Ku-waveband comprehensive digital coding instruction transmitting and receiving device |
| CN101944924A (en) * | 2010-09-30 | 2011-01-12 | 东南大学 | Broadband MIMO radio frequency transceiving system for next-generation wireless communication network |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579200A (en) * | 2014-12-22 | 2015-04-29 | 中国电子科技集团公司第五十四研究所 | Ku-waveband power amplifier |
| CN104579200B (en) * | 2014-12-22 | 2017-09-29 | 中国电子科技集团公司第五十四研究所 | A kind of Ku band power amplifiers |
| CN109167608A (en) * | 2018-10-10 | 2019-01-08 | 北京遥感设备研究所 | A kind of miniaturization S-Ku wave band Ultra-Wideband RF Receiver |
| CN109150214A (en) * | 2018-10-12 | 2019-01-04 | 南京屹信航天科技有限公司 | A kind of miniaturization ODU transmission channel circuit |
| CN109150214B (en) * | 2018-10-12 | 2024-05-28 | 南京屹信航天科技有限公司 | Miniaturized ODU emission channel circuit |
| CN109728829A (en) * | 2018-12-29 | 2019-05-07 | 同方电子科技有限公司 | A kind of high performance wideband Receiver Module |
| CN109728829B (en) * | 2018-12-29 | 2024-04-19 | 同方电子科技有限公司 | High-performance broadband radio frequency receiving module |
| CN110429952A (en) * | 2019-06-04 | 2019-11-08 | 广东圣大电子有限公司 | A kind of comprehensive radio-frequency system of Ku wave band |
| CN110429952B (en) * | 2019-06-04 | 2024-04-19 | 广东圣大电子有限公司 | Ku wave band comprehensive radio frequency receiving and transmitting system |
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Application publication date: 20130130 |