CN2742451Y - Integrated coaxial microwave detector - Google Patents
Integrated coaxial microwave detector Download PDFInfo
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- CN2742451Y CN2742451Y CN 200420108665 CN200420108665U CN2742451Y CN 2742451 Y CN2742451 Y CN 2742451Y CN 200420108665 CN200420108665 CN 200420108665 CN 200420108665 U CN200420108665 U CN 200420108665U CN 2742451 Y CN2742451 Y CN 2742451Y
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Abstract
The utility model relates to a microwave crystal detector in the technical field of microwaves, particularly an integrated coaxial microwave detector. An inner and an outer conductors on an input coaxial port (L16) are respectively connected in series with a blocking high-pass filtering circuit which is connected in series with an n-shaped power attenuating network afterwards, the power attenuating network is connected with a wave detecting crystal (D1) and an impedance matching network thereof afterwards, and a low-power signal output by the wave detecting crystal (D1) is sent to an input port of a low-frequency amplifier (A). The circuits are together arranged in a metal shielding box (1), an output signal of the low-frequency amplifier (A) is output by a mounting joint (Q9), and a microwave signal to be measured is input by a radio frequency joint (L16). The utility model can singly form a microwave power measuring system, and has the advantage of convenient assembly and use; in addition, all the components of the integrated coaxial microwave detector are encapsulated in the shielding box, and therefore, the utility model has good mechanical stability and good performance of space disturbance prevention.
Description
Affiliated technical field:
The utility model relates to the microwave pyron detector in the microwave technical field, exactly is a kind of integrated coaxial ripple wave detector that declines.
Background technology:
Microwave detector is the simplest, a sensitiveest a kind of microwave power detector spare, and the microwave power signal that is often used as in the microwave system detects.General microwave detector is that crystal diode is packed in one section microwave transmission line, being aided with impedance matching network and low-pass filter again forms, but above-mentioned microwave detector is in actual detected, also must be together in series and form a measuring system, just can finish microwave power measurement work with devices such as block isolating device, microwave attenuator, low-frequency amplifiers.The measuring system of Zu Chenging like this, because the mechanical connection link is many, thereby cause the electrical contact reliability between the device to descend, and under the forceful electric power magnetic environment, the signal parameter detection of microwave system is easy to be interfered, in the HIGH-POWERED MICROWAVES system, the surge voltage of the line doughtily interference that the earth potential sudden change produces also can appear, even the possibility of burning the detection crystal.
The utility model content
For the poor reliability that overcomes the measuring system that existing microwave detector forms, the disturbed and defective damaged easily, it is a kind of simple in structure that the utility model provides, the integrated coaxial that can under complex electromagnetic environment, the work ripple wave detector that declines, and working stability is reliable.
The technical scheme that the utility model adopted is: a kind of integrated coaxial ripple wave detector that declines, it is characterized in that: described integrated coaxial decline be serially connected with respectively on the internal and external conductor of input coaxial port of ripple wave detector one can only anti-3000V-6000V DC voltage the microwave capacitors device, constitute every straight high-pass filtering circuit; The ∏ type power attenuation network that described high-pass filtering circuit back serial connection is made of five microwave resistors, with the power attenuation of the microwave signal to be detected of input to the interval that is fit to detection crystal operate as normal; Described attenuation network back connects detection crystal and impedance matching network thereof, the feeble signal of detection crystal output is delivered to the input port of low-frequency amplifier again, by low-frequency amplifier with this signal be amplified to can be directly by computing machine or other gather, in the level range of control device requirement; Above-mentioned all circuit are concentrated to be placed in the metallic shield box, and the output signal of low-frequency amplifier is by the Q9 joint output that is installed in shielding box housing one end, and microwave signal to be measured is via the L16 radio-frequency joint input that is installed on the shielding box housing other end.
Electromagnetic interference (EMI) comprises that space electromagnetic interference (EMI) and ground wire disturb, wherein the eliminating of ground wire interference is particularly complicated, through the spectrum measurement analysis, its energy mainly concentrates on below the 100MHz, therefore the about 100MHz of passage front end adding cutoff frequency can measured, the Hi-pass filter of withstand voltage 3000V-6000V can effectively suppress ground wire and disturb from the coupling of microwave main transmission line to the measurement passage, stops the infringement to the detection crystal of earth potential, electrostatic potential and other low-frequency disturbance.
The beneficial effect of the art of this patent is: the utility model not only possesses all performances of conventional microwave detector, can also form the microwave power measurement system separately, no longer need to be equipped with devices such as block isolating device, microwave attenuator, low-frequency amplifier, install and use more convenient.Described in addition integrated coaxial all parts of ripple wave detector that decline all are packaged in the shielding box, have favorable mechanical stability and good anti-spatial interference performance, can be under complex electromagnetic environment steady operation for a long time.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described further:
Fig. 1 is the structural representation of the microwave power measurement system of the common microwave detector of employing,
Fig. 2 is the structural representation of the microwave power measurement system of employing integrated form microwave detector,
Fig. 3 is the structural representation of integrated form microwave detector,
Fig. 4 is integrated form microwave detector circuit theory diagrams.
Embodiment
As can be seen from Figure 1, the microwave power measurement system that is made up of common microwave detector needs block isolating device, microwave attenuator, microwave detector and four discrete devices of low-frequency amplifier to compose in series measurement branches mutually, be to connect between the device with the L16 coaxial fitting, the butt joint of L16 joint is after repeatedly plugging, contact between the inner wire just might be become flexible, thus the reliability that influence is electrically connected.
The microwave power measurement system of Fig. 2 for adopting the integrated form microwave detector to form, measurement branches has only device of integrated form microwave detector, has both avoided above-mentioned connectivity problem, makes measuring system become very succinct again.
Fig. 3 is a structural representation of the present utility model, coaxial input adapter L16 is screwed the end at shielding box 1 housing, input port as microwave signal to be measured, connecting every straight high-pass filtering circuit, microwave power attenuator circuit, microwave crystal detection circuit and low frequency signal amplifying circuit thereafter, low frequency signal amplifying circuit output be rectified signal after amplifying, it is by being installed in the 09 joint output on the shielding box 1 housing other end.The required direct supply of low-frequency amplifier A by external power supply 3 via the joint feed-in that is fixed on shielding box 1 housing, its enlargement factor is then regulated by accurate multiturn potentiometer, the adjusting knob 2 of this potentiometer also is fixed on shielding box 1 housing, with handled easily.
Fig. 4 is the circuit theory diagrams of integrated form microwave detector, wherein, C1, C2 high frequency capacitance constitute every straight Hi-pass filter, R1, R2, R3, R4, R5 form attenuator, R6 is a band compensation resistance, and D1 is that square-law is proofreaied and correct resistance for the anti-detector diode that burns, R0, what R0 adopted simultaneously is thermistor, but the compensation temperature characteristic.
A described microwave detector (around controlled thermonuclear fusion device) under complex electromagnetic environments extremely used surplus once having 50 in actual the use, the about 1MW of the through-put power of microwave system, work after 2 years, do not occur device damage phenomenon substantially, detected signal stabilization is reliable.
In order further to improve the electric reliability and the interference free performance of this wave detector, can also use every methods such as straight high-pass filtering and metallic shields on the one hand, reasonably optimize circuit parameter on the other hand, improve signal to noise ratio (S/N ratio).
Claims (1)
1. a kind of integrated coaxial of relating to of the utility model ripple wave detector that declines, it is characterized in that: described integrated coaxial decline be serially connected with respectively on the internal and external conductor of input coaxial port (L16) of ripple wave detector one can only anti-3000V-6000V DC voltage microwave capacitors device (C1, C2), constitute every straight high-pass filtering circuit; The ∏ type power attenuation network that described high-pass filtering circuit back serial connection is made of five microwave resistors (R1, R2, R3, R4, R5), with the power attenuation of the microwave signal to be detected of input to the interval that is fit to detection crystal (D1) operate as normal; Described attenuation network back connects detection crystal (D1) and impedance matching network thereof, the feeble signal of detection crystal (D1) output is delivered to the input port of low-frequency amplifier (A) again, by low-frequency amplifier (A) with this signal be amplified to can be directly by computing machine or other gather, in the level range of control device requirement; Above-mentioned all circuit are concentrated to be placed in the metallic shield box (1), the output signal of low-frequency amplifier (A) is by (Q9) joint output that is installed in shielding box (1) housing one end, and microwave signal to be measured is via (L16) radio-frequency joint input that is installed on shielding box (1) the housing other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108665 CN2742451Y (en) | 2004-11-09 | 2004-11-09 | Integrated coaxial microwave detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108665 CN2742451Y (en) | 2004-11-09 | 2004-11-09 | Integrated coaxial microwave detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2742451Y true CN2742451Y (en) | 2005-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108665 Expired - Fee Related CN2742451Y (en) | 2004-11-09 | 2004-11-09 | Integrated coaxial microwave detector |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076585A (en) * | 2012-12-28 | 2013-05-01 | 北京无线电计量测试研究所 | N-type coaxial thermistor type power transmission standard seat |
| CN103529420A (en) * | 2013-10-29 | 2014-01-22 | 北京无线电计量测试研究所 | 3.5 mm coaxial thermistor type power transmission standard seat |
| CN103698597A (en) * | 2013-12-27 | 2014-04-02 | 中国人民解放军63655部队 | High-power microwave power detector |
| CN103995187A (en) * | 2013-04-22 | 2014-08-20 | 中国人民解放军63655部队 | X-wave band high-power microwave integration radiation field measuring system |
| CN106645918A (en) * | 2016-12-29 | 2017-05-10 | 西北核技术研究所 | Integrated microwave measurement device |
| CN107192910A (en) * | 2017-07-13 | 2017-09-22 | 安徽博微长安电子有限公司 | Microwave monitored automatically channel components |
| CN108414082A (en) * | 2018-02-22 | 2018-08-17 | 中国科学院近代物理研究所 | A kind of light radiation monitoring system of High-Power Microwave cavity |
| CN112034224A (en) * | 2020-08-25 | 2020-12-04 | 中国电子科技集团公司第三十六研究所 | Coupling detector |
-
2004
- 2004-11-09 CN CN 200420108665 patent/CN2742451Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076585B (en) * | 2012-12-28 | 2015-11-04 | 北京无线电计量测试研究所 | A kind of N-type coaxial thermistor type power transmission standard seat |
| CN103076585A (en) * | 2012-12-28 | 2013-05-01 | 北京无线电计量测试研究所 | N-type coaxial thermistor type power transmission standard seat |
| CN103995187B (en) * | 2013-04-22 | 2016-06-01 | 中国人民解放军63655部队 | X-band High-Power Microwave integrated radiation field measuring system |
| CN103995187A (en) * | 2013-04-22 | 2014-08-20 | 中国人民解放军63655部队 | X-wave band high-power microwave integration radiation field measuring system |
| CN103529420B (en) * | 2013-10-29 | 2016-03-09 | 北京无线电计量测试研究所 | A kind of 3.5mm coaxial thermistor type power transmission standard seat |
| CN103529420A (en) * | 2013-10-29 | 2014-01-22 | 北京无线电计量测试研究所 | 3.5 mm coaxial thermistor type power transmission standard seat |
| CN103698597A (en) * | 2013-12-27 | 2014-04-02 | 中国人民解放军63655部队 | High-power microwave power detector |
| CN106645918A (en) * | 2016-12-29 | 2017-05-10 | 西北核技术研究所 | Integrated microwave measurement device |
| CN107192910A (en) * | 2017-07-13 | 2017-09-22 | 安徽博微长安电子有限公司 | Microwave monitored automatically channel components |
| CN107192910B (en) * | 2017-07-13 | 2023-04-18 | 安徽博微长安电子有限公司 | Microwave automatic control detection channel assembly |
| CN108414082A (en) * | 2018-02-22 | 2018-08-17 | 中国科学院近代物理研究所 | A kind of light radiation monitoring system of High-Power Microwave cavity |
| CN108414082B (en) * | 2018-02-22 | 2024-02-02 | 中国科学院近代物理研究所 | Optical radiation monitoring system of high-power microwave cavity |
| CN112034224A (en) * | 2020-08-25 | 2020-12-04 | 中国电子科技集团公司第三十六研究所 | Coupling detector |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |