CN103501204B - A kind of X-band power output telemetry-acquisition device - Google Patents
A kind of X-band power output telemetry-acquisition device Download PDFInfo
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- CN103501204B CN103501204B CN201310461831.4A CN201310461831A CN103501204B CN 103501204 B CN103501204 B CN 103501204B CN 201310461831 A CN201310461831 A CN 201310461831A CN 103501204 B CN103501204 B CN 103501204B
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Abstract
A kind of X-band power output telemetry-acquisition device, be arranged in the transmitting prime of a spaceborne X-band data transmitter, in order to produce the power output remote measurement voltage signal launching prime, X-band power output telemetry-acquisition device comprises: microstrip coupler, the X-band modulated signal sent in order to the part transmitting prime that is coupled; Detecting circuit, connects microstrip coupler, in order to carry out detection and filtering to the signal through overcoupling, to form stable magnitude of voltage; Remote measurement Circuit tuning, in order to carry out amplification adjustment to magnitude of voltage, produces power output remote measurement voltage signal.This remote measurement voltage signal amount helps satellite user by the size of power output during telemetry monitoring prime operation on orbit, moment reflection prime operating state, when the number received when ground passes signal power generation exception, can quick position, judge abnormal whether causing by prime power output is abnormal.
Description
Technical field
The present invention relates to technical field of data transmission, particularly a kind of X-band power output telemetry-acquisition device.
Background technology
Spaceborne X-band power output telemetry-acquisition device is mainly used on spaceborne X-band data transmitter.Spaceborne data transmitter adopts the pattern of launching prime and the cascade of power amplifier level usually.During transfer of data, launch prime and first carry out chnnel coding, modulation to satellite load data, modulated signal, after the power amplification of power amplifier level, sends to ground or relay satellite by antenna.There is the relation of power match between prime and power amplifier level, need ensure that prime output power range is in power amplifier level saturation region, the output signal power of power amplifier level is stablized, be conducive to ground station or relay satellite receiving equipment and transmission data are processed.
At present, only have the remote measurement of local oscillator power output in-orbit and in the data transmitter prime of grinding, without the remote measurement of prime power output, for user, remote measurement amount lacks to some extent.When data transmitter power amplifier level power output is abnormal, be difficult to judge whether to be caused by prime output abnormality.
Summary of the invention
The present invention is directed to prior art above shortcomings, provide a kind of X-band power output telemetry-acquisition device, in order to produce number transmission transmitter prime power output remote measurement voltage signal.This remote measurement amount helps satellite user by the size of power output during telemetry monitoring prime operation on orbit, moment reflection prime operating state, the number received when ground passes signal power when occurring abnormal, can quick position, judges abnormal whether extremely being caused by prime power output.
The present invention is achieved through the following technical solutions:
A kind of X-band power output telemetry-acquisition device, be arranged in the transmitting prime of a spaceborne X-band data transmitter, in order to produce the power output remote measurement voltage signal launching prime, X-band power output telemetry-acquisition device comprises:
Microstrip coupler, the X-band modulated signal sent in order to the part transmitting prime that is coupled;
Detecting circuit, connects microstrip coupler, in order to carry out detection and filtering to the signal through overcoupling, to form stable magnitude of voltage;
Remote measurement Circuit tuning, in order to carry out amplification adjustment to magnitude of voltage, produces power output remote measurement voltage signal.
Preferably, microstrip coupler comprises: straight-through branch road, coupling branch road, and the X-band modulated signal that part transmitting prime sends enters detecting circuit through overcoupling branch road, and the X-band modulated signal that another part transmitting prime sends exports through straight-through branch road.
Preferably, microstrip coupler is one 90 ° of branch line couplers.
Preferably, remote measurement Circuit tuning comprises an operational amplifier, in order to carry out amplification adjustment to magnitude of voltage.
Preferably, remote measurement Circuit tuning also comprises the diode and integrated circuit that adopt bipolar process to manufacture, with immune single-particle inversion.
Preferably, detecting circuit comprises a detector diode, in order to X-band modulated signal is converted to magnitude of voltage.
Preferably, detecting circuit also comprises a filter circuit, comprises some resistance and electric capacity, in order to filtering high fdrequency component, to form stable magnitude of voltage.
Preferably, adopt micro strip to be connected with printed board cross-over connection between microstrip coupler, detecting circuit, remote measurement Circuit tuning, and be installed on same housing.
Accompanying drawing explanation
Shown in Fig. 1 is structural representation of the present invention;
Shown in Fig. 2 is the structural representation of 90 ° of branch line couplers of the present invention;
Shown in Fig. 3 is the structural representation of detecting circuit of the present invention;
Shown in Fig. 4 is the structural representation of remote measurement Circuit tuning of the present invention.
Embodiment
Below with reference to accompanying drawing of the present invention; clear, complete description and discussion are carried out to the technical scheme in the embodiment of the present invention; obviously; as described herein is only a part of example of the present invention; it is not whole examples; based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to protection scope of the present invention.
For the ease of the understanding to the embodiment of the present invention, be further explained for specific embodiment below in conjunction with accompanying drawing, and each embodiment does not form the restriction to the embodiment of the present invention.
Fig. 1 is the structural representation of X-band power output telemetry-acquisition device of the present invention.This device forms primarily of microstrip coupler 1, detecting circuit 2 and remote measurement Circuit tuning 3, adopts micro strip to be connected with printed board cross-over connection pattern; Use same housing to install, realize the telemetry-acquisition of X-band transmitter prime power output.
Fig. 2 is the structural representation of 90 ° of branch line couplers.Straight-through branch road 12, coupling branch road 11, the X-band modulated signal that part transmitting prime sends enters detecting circuit 2 through overcoupling branch road 11, and the X-band modulated signal that another part transmitting prime sends exports through straight-through branch road 12.
Microstrip coupler 1 adopts 90 ° of branch line couplers, this coupled modes are compared to traditional parallel lines power splitter etc., there are following three advantages: first, the coupling merit that can adapt to small-signal is divided, the power of transmitter prime output signal is generally-5 ~ 5dBm, adopt 90 ° of branch line couplers can ensure that the Insertion Loss of straight-through branch road is little, can ensure that again coupling tributary signal size meets subsequent conditioning circuit requirement; Secondly, the degree of coupling is flexible, the degree of coupling needed for being produced by the size changing branch line, and 90 ° of branch line coupler sizes that this device adopts are fixed, and the degree of coupling designed is 3dB; In addition, coupling isolation, reverse isolation degree and standing wave performance are all greatly improved, and are convenient to realize being connected with the coupling of other radio-frequency devices; directly be connected with isolator after straight-through output; realize the insulation blocking function of signal output part, reduce development difficulty, increase versatility.By design, the property indices of this coupler circuit is as follows:
Straight-through end Insertion Loss: <-2dB;
The isolation on coupling branch road and straight-through road: >-25dB;
Reverse isolation degree: >-30dB;
Standing-wave ratio: <1.3;
Fig. 3 is the structural representation of detecting circuit 2.By the detector diode 21 of X-band, high-frequency signal is converted to magnitude of voltage, is reflected the energy size of coupled signal by magnitude of voltage, thus indirectly reflect the size of power output.Due to the modulation signal that transmitter prime output signal is X frequency range, signal waveform has the characteristic of roll-offing of modulation signal, general diode is used to be difficult to meet detection requirement, this device has selected the high-frequency high-speed diode with capability of fast response---and MA40115 type Schottky diode, is encapsulated as 276 types.Again by RC filter circuit filtering high fdrequency component after detection, according to the concrete frequency of radiofrequency signal, electric capacity C1 selects suitable capacitance, to form galvanic current pressure value.
Fig. 4 is the structural representation of remote measurement Circuit tuning 3.Remote measurement Circuit tuning forms primarily of an operational amplifier 31, the magnitude of voltage that detecting circuit exports is adjusted by operational amplifier, by selecting suitable peripheral circuit resistance value to change amplification coefficient, meeting the requirement of whole star remote measurement amount, exporting after completing telemetry-acquisition function.What circuit was selected is not by the device that space radiation affects, and forms primarily of diode ZW53 and integrated circuit LM158AJ/883, can meet on-board equipment space environment reliability requirement.
In addition, the present invention also has the feature of miniaturization, lightweight, low-power consumption.This device overall dimension is 28.0mm*25.8mm, and weight is 0.3Kg, and power consumption is 0.48w.Whole apparatus structure is compact, and adopt " entirely bright " housing design, any parts only need be opened corresponding cover plate and can carry out debugging or taking pictures.This design prevents the difficulty of installation that sandwich causes, dismounting, debugging, reduce the hidden danger of residual fifth wheel, be convenient to the production and processing of structural member.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (5)
1. an X-band power output telemetry-acquisition device, it is characterized in that, be arranged in the transmitting prime of a spaceborne X-band data transmitter, in order to produce the power output remote measurement voltage signal of described transmitting prime, described X-band power output telemetry-acquisition device comprises:
Microstrip coupler, the X-band modulated signal sent in order to a part of described transmitting prime that is coupled;
Detecting circuit, connects described microstrip coupler, in order to carry out detection and filtering to the signal through overcoupling, to form stable magnitude of voltage;
Remote measurement Circuit tuning, in order to carry out amplification adjustment to described magnitude of voltage, produces described power output remote measurement voltage signal;
Described microstrip coupler is one 90 ° of branch line couplers, and the degree of coupling is 3dB;
Described microstrip coupler comprises: straight-through branch road, coupling branch road, the X-band modulated signal that described part transmitting prime sends enters described detecting circuit through described coupling branch road, the X-band modulated signal that another part transmitting prime sends exports through described straight-through branch road, is directly connected with isolator after straight-through output;
Described detecting circuit comprises a detector diode, and in order to described X-band modulated signal is converted to magnitude of voltage, described detector diode is MA40115 type Schottky diode.
2. X-band power output telemetry-acquisition device according to claim 1, it is characterized in that, described remote measurement Circuit tuning comprises an operational amplifier, in order to carry out amplification adjustment to described magnitude of voltage.
3. X-band power output telemetry-acquisition device according to claim 2, is characterized in that, described remote measurement Circuit tuning also comprises the diode and integrated circuit that adopt bipolar process to manufacture, with immune single-particle inversion.
4. X-band power output telemetry-acquisition device according to claim 1, it is characterized in that, described detecting circuit also comprises a filter circuit, comprises some resistance and electric capacity, in order to filtering high fdrequency component, to form stable magnitude of voltage.
5. X-band power output telemetry-acquisition device according to claim 1, is characterized in that, adopt micro strip to be connected with printed board cross-over connection, and be installed on same housing between described microstrip coupler, detecting circuit, remote measurement Circuit tuning.
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| CN201310461831.4A CN103501204B (en) | 2013-10-08 | 2013-10-08 | A kind of X-band power output telemetry-acquisition device |
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| CN201310461831.4A CN103501204B (en) | 2013-10-08 | 2013-10-08 | A kind of X-band power output telemetry-acquisition device |
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| CN103501204B true CN103501204B (en) | 2016-01-27 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103944631B (en) * | 2014-05-13 | 2018-01-30 | 上海航天电子通讯设备研究所 | A kind of miniature spaceborne X-band number based on sip technique passes emitter |
| CN110677189B (en) * | 2019-10-09 | 2022-02-15 | 四川灵通电讯有限公司 | Low-orbit satellite multi-beam detection device |
| CN111446975A (en) * | 2020-04-01 | 2020-07-24 | 上海航天测控通信研究所 | Satellite-borne VHF frequency band transmitter |
| CN112666636B (en) * | 2020-12-18 | 2023-07-14 | 西安空间无线电技术研究所 | Channel coupling performance test method for spectrum subdivision receiver of microwave radiometer |
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| JP2964883B2 (en) * | 1994-09-30 | 1999-10-18 | 日本電気株式会社 | Transmitter |
| CN101710711B (en) * | 2009-12-21 | 2013-03-27 | 中国电力科学研究院 | Monitoring system for energy storing device for output power of smooth wind power system |
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| CN101034877A (en) * | 2007-02-16 | 2007-09-12 | 上海杰盛无线通讯设备有限公司 | Balance power amplifier based on 90 degree branch mixed electrical bridge |
| CN101051860A (en) * | 2007-05-24 | 2007-10-10 | 华为技术有限公司 | Feed network device, aerial feed subsystem and base station system |
| CN101242027A (en) * | 2007-11-12 | 2008-08-13 | 杭州电子科技大学 | Polarization antenna for directional coupler feedback low profile back cavity round |
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