CN105933258B - Calibration local oscillator module of modularized microwave assembly - Google Patents
Calibration local oscillator module of modularized microwave assembly Download PDFInfo
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- CN105933258B CN105933258B CN201610454293.XA CN201610454293A CN105933258B CN 105933258 B CN105933258 B CN 105933258B CN 201610454293 A CN201610454293 A CN 201610454293A CN 105933258 B CN105933258 B CN 105933258B
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Abstract
The invention discloses a calibration local oscillator module of a modularized microwave assembly, and relates to the technical field of microwaves. The calibration local oscillator module of the modular microwave assembly comprises a main narrow band down-conversion calibration module and an auxiliary narrow band down-conversion calibration module. The invention provides a calibration local oscillator module of a modularized microwave assembly, which has the advantages of multiple frequency conversion and good calibration effect.
Description
Technical Field
The invention relates to the technical field of microwaves, in particular to a calibration local oscillator module of a modularized microwave assembly.
Background
The microwave assembly is a product assembled by various microwave components (at least one is active) and other parts, and is mostly designed in a customized way. In the prior art, the design difficulty of a calibration local oscillator module in a microwave component lies in the control of link gain, and because the amplitude of an input signal is low, a local oscillator generation link needs to provide a high gain, but the conditions of self-excitation, clutter deterioration and the like are caused by the high gain of radio frequency. Therefore, the gain of the frequency conversion needs to be reasonably distributed for several times.
Disclosure of Invention
Aiming at the defects in the technology, the invention provides the calibration local oscillator module of the modularized microwave component, which has the advantages of multiple frequency conversion and good calibration effect.
To achieve these objects and other advantages in accordance with the present invention, the present invention is implemented by:
the invention relates to a calibration local oscillator module of a modular microwave assembly, which comprises a main narrow band down-conversion calibration module and an auxiliary narrow band down-conversion calibration module;
the main narrow-band down-conversion calibration module comprises a first adder connected with a signal, the output end of the first adder is connected with a first amplifier and then connected with a first filter, the output end of the first filter is connected with a first attenuator, the output end of the first attenuator is connected with a first power divider, and the output end of the first power divider is connected with a first detector; the first detector is input into a second amplifier after detection, and the output end of the second amplifier is connected with a second attenuator; the output end of the second attenuator is connected with a second adder, and the output end of the second adder is connected with a third attenuator; the output end of the third attenuator is connected with a second detector, and the output end of the second detector is connected with a third amplifier; the output end of the third amplifier is connected with a fourth attenuator, and the output end of the fourth attenuator is connected with a third adder; the output end of the third adder is connected with a fourth amplifier, and the output end of the fourth amplifier is connected with the first temperature-compensated attenuator; the output end of the first temperature compensation attenuator is connected with a third detector, and the output end of the third detector outputs a tracking local oscillator signal;
the auxiliary narrow-band down-conversion calibration module comprises a fourth adder connected with a signal, the output end of the fourth adder is connected with a fifth amplifier and then connected with a second filter, the output end of the second filter is connected with a fifth attenuator, the output end of the fifth attenuator is connected with a second power divider, the output end of the second power divider is connected with a load and a fifth adder, the fifth adder is connected with a second temperature compensation attenuator after being merged into a tracking local oscillator signal output by the main narrow-band down-conversion calibration module, the output end of the second temperature compensation attenuator is connected with a sixth amplifier, the output end of the sixth amplifier is connected with a fourth detector, the output end of the fourth detector is connected with a seventh amplifier, and the output end of the seventh amplifier is connected with the sixth attenuator and then outputs a calibration signal.
Preferably, the first, second, third, fourth, fifth and sixth attenuators are all numerical control attenuators.
Preferably, the first detector, the second detector, the third detector, the fourth detector and the fifth detector are all high-speed tunnel diodes.
The invention at least comprises the following beneficial effects: the calibration local oscillator is generated by two times of frequency conversion, and a local oscillator signal which is lower than the input radio frequency signal by 70MHz is generated by amplifying and frequency converting the radio frequency input signal.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic diagram of a main narrowband down-conversion calibration module in a calibration local oscillator module of a modular microwave component according to the present invention;
fig. 2 is a schematic diagram of an auxiliary narrowband down-conversion calibration module in a calibration local oscillator module of a modular microwave component according to the present invention;
wherein: 1. the first attenuator, the second attenuator, the third attenuator, the fourth adder, the fourth amplifier, the 15, the first temperature compensation attenuator, the 16, the third attenuator, the 17, the fourth adder, the 18, the fifth amplifier, the 19, the second filter, the 20, the fifth attenuator, the 21, the second power divider, the 22, the fifth adder, the 23, the second temperature compensation attenuator, the sixth amplifier, the 25, the fourth detector, the 26, the seventh amplifier, the 27, the sixth attenuator, and the 28.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-2, the present invention provides a calibration local oscillator module of a modular microwave component, which includes a main narrow band down-conversion calibration module and an auxiliary narrow band down-conversion calibration module;
the main narrow-band down-conversion calibration module comprises a first adder 1 for accessing a signal, an output end of the first adder 1 is connected with a first amplifier 28 and then connected with a first filter 2, an output end of the first filter 2 is connected with a first attenuator 3, an output end of the first attenuator 3 is connected with a first power divider 4, and an output end of the first power divider 4 is connected with a first detector 5; the first detector 5 is input into a second amplifier 6 after detection, and the output end of the second amplifier 6 is connected with a second attenuator 7; the output end of the second attenuator 7 is connected with a second adder 8, and the output end of the second adder 8 is connected with a third attenuator 9; the output end of the third attenuator 9 is connected with a second detector 10, and the output end of the second detector 10 is connected with a third amplifier 11; the output end of the third amplifier 11 is connected with a fourth attenuator 12, and the output end of the fourth attenuator 12 is connected with a third adder 13; the output end of the third adder 13 is connected with a fourth amplifier 14, and the output end of the fourth amplifier 14 is connected with a first temperature-compensated attenuator 15; the output end of the first temperature compensation attenuator 15 is connected with a third detector 16, and the output end of the third detector 16 outputs a tracking local oscillator signal;
the auxiliary narrow-band down-conversion calibration module comprises a fourth adder 17 connected with a signal, an output end of the fourth adder 17 is connected with a second filter 19 after being connected with a fifth amplifier 18, an output end of the second filter 19 is connected with a fifth attenuator 20, an output end of the fifth attenuator 20 is connected with a second power divider 21, an output end of the second power divider 21 is connected with a load and a fifth adder 22, the fifth adder 22 is connected with a second temperature-compensated attenuator 23 after being merged into a tracking local oscillator signal output by the main narrow-band down-conversion calibration module, an output end of the second temperature-compensated attenuator 23 is connected with a sixth amplifier 24, an output end of the sixth amplifier 24 is connected with a fourth detector 25, an output end of the fourth detector 25 is connected with a seventh amplifier 26, and an output end of the seventh amplifier 26 is connected with a sixth attenuator 27 and then outputs a calibration signal.
The first, second, third, fourth, fifth and sixth attenuators adopted in the invention are all numerical control attenuators.
The first detector, the second detector, the third detector and the fourth detector are all high-speed tunnel diodes.
The calibration local oscillator is generated by two times of frequency conversion, and a local oscillator signal which is lower than the input radio frequency signal by 70MHz is generated by amplifying and frequency converting the radio frequency input signal.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a calibration local oscillator module of modularization microwave subassembly which characterized in that: the calibration local oscillator module comprises a main narrow band down-conversion calibration module and an auxiliary narrow band down-conversion calibration module;
the main narrow-band down-conversion calibration module comprises a first adder connected with a signal, the output end of the first adder is connected with a first amplifier and then connected with a first filter, the output end of the first filter is connected with a first attenuator, the output end of the first attenuator is connected with a first power divider, and the output end of the first power divider is connected with a first detector; the first detector is input into a second amplifier after detection, and the output end of the second amplifier is connected with a second attenuator; the output end of the second attenuator is connected with a second adder, and the output end of the second adder is connected with a third attenuator; the output end of the third attenuator is connected with a second detector, and the output end of the second detector is connected with a third amplifier; the output end of the third amplifier is connected with a fourth attenuator, and the output end of the fourth attenuator is connected with a third adder; the output end of the third adder is connected with a fourth amplifier, and the output end of the fourth amplifier is connected with the first temperature compensation attenuator; the output end of the first temperature compensation attenuator is connected with a third detector, and the output end of the third detector outputs a tracking local oscillator signal;
the auxiliary narrow-band down-conversion calibration module comprises a fourth adder connected with a signal, the output end of the fourth adder is connected with a fifth amplifier and then connected with a second filter, the output end of the second filter is connected with a fifth attenuator, the output end of the fifth attenuator is connected with a second power divider, the output end of the second power divider is connected with a load and a fifth adder, the fifth adder is connected with a second temperature compensation attenuator after being merged into a tracking local oscillator signal output by the main narrow-band down-conversion calibration module, the output end of the second temperature compensation attenuator is connected with a sixth amplifier, the output end of the sixth amplifier is connected with a fourth detector, the output end of the fourth detector is connected with a seventh amplifier, and the output end of the seventh amplifier is connected with the sixth attenuator and then outputs a calibration signal;
the calibration local oscillator is generated by two frequency conversions, and a local oscillator signal which is 70MHz lower than the input radio frequency signal is generated by amplifying and frequency converting the radio frequency input signal.
2. A calibrated local oscillator module for a modular microwave module according to claim 1, wherein; the first attenuator, the second attenuator, the third attenuator, the fourth attenuator, the fifth attenuator and the sixth attenuator are all numerical control attenuators.
3. The calibrated local oscillator module for a modular microwave module according to claim 1, wherein: the first detector, the second detector, the third detector, the fourth detector and the fifth detector are all high-speed tunnel diodes.
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| CN103731181A (en) * | 2014-01-16 | 2014-04-16 | 四川九洲电器集团有限责任公司 | Broadband signal generator |
| CN103956975A (en) * | 2014-05-21 | 2014-07-30 | 北京遥测技术研究所 | Multi-channel phase matching type down-conversion link |
| CN104301047A (en) * | 2014-10-22 | 2015-01-21 | 中国电子科技集团公司第四十一研究所 | Power self-calibration device and method of multi-mode multi-frequency multi-channel system |
| CN204886942U (en) * | 2015-07-17 | 2015-12-16 | 安徽四创电子股份有限公司 | Integration X wave band transceiver module |
| CN205754411U (en) * | 2016-06-22 | 2016-11-30 | 安徽天兵电子科技有限公司 | A kind of calibration local oscillator module of modularity microwave components |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6606583B1 (en) * | 1998-09-21 | 2003-08-12 | Ben K. Sternberg | Real-time error-suppression method and apparatus therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101605007A (en) * | 2009-07-31 | 2009-12-16 | 中国电子科技集团公司第四十一研究所 | The stabilizing amplitude in generation time slot of time division-synchronous code division multiple access signals device and method |
| CN102752010A (en) * | 2011-04-21 | 2012-10-24 | 沈阳中科微电子有限公司 | Transceiving module used for communication base stations |
| CN102843113A (en) * | 2012-09-18 | 2012-12-26 | 成都林海电子有限责任公司 | Down converter gain control method |
| CN103731181A (en) * | 2014-01-16 | 2014-04-16 | 四川九洲电器集团有限责任公司 | Broadband signal generator |
| CN103956975A (en) * | 2014-05-21 | 2014-07-30 | 北京遥测技术研究所 | Multi-channel phase matching type down-conversion link |
| CN104301047A (en) * | 2014-10-22 | 2015-01-21 | 中国电子科技集团公司第四十一研究所 | Power self-calibration device and method of multi-mode multi-frequency multi-channel system |
| CN204886942U (en) * | 2015-07-17 | 2015-12-16 | 安徽四创电子股份有限公司 | Integration X wave band transceiver module |
| CN205754411U (en) * | 2016-06-22 | 2016-11-30 | 安徽天兵电子科技有限公司 | A kind of calibration local oscillator module of modularity microwave components |
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