Non-contact type ridge waveguide, micro-strip and coupling slot probe transition circuit

A non-contact, ridged waveguide technology, applied in circuits, waveguide devices, electrical components, etc., can solve problems such as operating bandwidth limitations, achieve low-loss transition, strong electric field signals, and avoid effects.

Active Publication Date: 2019-06-21
10TH RES INST OF CETC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the penetrating mechanism is not in direct contact with the back of the waveguide, the strength of the coupl

Method used

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  • Non-contact type ridge waveguide, micro-strip and coupling slot probe transition circuit
  • Non-contact type ridge waveguide, micro-strip and coupling slot probe transition circuit
  • Non-contact type ridge waveguide, micro-strip and coupling slot probe transition circuit

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Embodiment Construction

[0017] refer to Figure 1 to Figure 5 . In the preferred embodiment described below, a non-contact ridge waveguide microstrip coupling slot probe transition structure includes: a single ridge waveguide composed of a waveguide ridge back 4 is fabricated in a rectangular waveguide 1, perpendicular to the center of the upper end plane of the rectangular waveguide 1 The windowed waveguide 9 of the line, the waveguide back gap 2 formed by the upper end plane of the waveguide ridge 4 and the upper bottom plane of the rectangular waveguide 1, and the microstrip probe 6 inserted into the window channel of the windowed waveguide 9. It is characterized in that: the waveguide ridge 4 extends below the window at the bottom of the windowed waveguide 9, cuts down and turns vertically to form a section of the ridge open end 3, and is a microstrip substrate inserted downward from the side wall of the window terminal of the windowed waveguide 9 5 is divided into a waveguide coupling slot and ...

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Abstract

The invention discloses a non-contact type ridge waveguide, micro-strip and coupling slot probe transition structure, and aims to provide a transition circuit having wide frequency band and low insertion loss. The non-contact type ridge waveguide, micro-strip and coupling slot probe transition structure in the invention is realized through the following technical scheme: a waveguide ridge extendsto be below the bottom of a windowed waveguide, and forms a section of a ridge open-end after being downwardly cut off and vertically turned; furthermore, it is separated into a waveguide coupling slot and a shielding cavity by a micro-strip substrate, which is downwardly inserted from the side wall of the window terminal of the windowed waveguide; a micro-strip probe is vertically inserted into the coupling slot from the rectangular window of the windowed waveguide; an electromagnetic coupling slot transition area is formed by facing the vertical wall surface of the ridge open-end; an electric field line parallel to the vertical surface of the ridge open-end 3 and an electric field line of the waveguide shielding cavity at the back of the micro-strip substrate act on the surface of the micro-strip probe together, so that surface current is formed; after distributed capacitance between the micro-strip probe and the side wall of the ridge open-end is offset through a section of high-impedance micro-strip line in the window channel of the windowed waveguide, a high-resistance ridge waveguide standard-TE<10> mode is converted into a micro-strip standard-TEM mode; and thus, transitionis completed.

Description

technical field [0001] The invention relates to the field of microwave / millimeter wave circuits, in particular to microwave / millimeter wave modules and components including ridge waveguides, which are mainly used in high-efficiency signal transmission between ridge waveguides and microstrip circuits. Background technique [0002] Although microwave monolithic integrated circuits use microstrip lines to realize signal transmission and interconnection, in many high-power applications, rectangular waveguides are required as the input and output interfaces of radio frequency signals. Therefore, how to design a waveguide-microstrip transition circuit with wide frequency band, low insertion loss, small size and easy fabrication is particularly important, which will have a direct impact on the performance of the system. At present, the commonly used transition conversion methods from waveguide to microstrip include: waveguide-ridge waveguide-microstrip transition, waveguide-couplin...

Claims

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Application Information

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IPC IPC(8): H01P5/107
Inventor 党章朱海帆黄建刘祚麟
Owner 10TH RES INST OF CETC
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