Rectangular waveguide microstrip airtight seal transition circuit

A rectangular waveguide and hermetic sealing technology, applied in circuits, waveguide-type devices, electrical components, etc., can solve the problem that the rectangular waveguide interface is difficult to achieve sealing, and achieve the effect of compact structure, small reflection coefficient, and good sealing.

Inactive Publication Date: 2018-10-26
10TH RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that it is difficult to seal the rectangular waveguide interface of microwave/millimeter wave components, and provide a fully airtight rectangular waveguide micro

Method used

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  • Rectangular waveguide microstrip airtight seal transition circuit
  • Rectangular waveguide microstrip airtight seal transition circuit
  • Rectangular waveguide microstrip airtight seal transition circuit

Examples

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Embodiment Construction

[0017] refer to figure 1 . In the embodiment described below, a rectangular waveguide microstrip airtight transition circuit includes: a glass insulator coaxial connector 2 fixed on the vertical plane of the rectangular waveguide 1 perpendicular to the waveguide transmission direction, and a coaxial stepped cylinder 6 The end-connected microstrip line 5 is characterized in that: the coaxial inner conductor probe 11 connected to the coaxial step cylinder 6 in the same body axially, the coaxial line from the rectangular waveguide cavity 12 passes through the waveguide cavity partition wall 13, the glass insulator coaxial The connector 2 and the air-medium radio frequency coaxial connector 4 and the air matching coupling ring 3 fixedly connected between the two are connected to the microstrip line 5 that is hermetically sealed in the microstrip cavity 14 through the transition extension of the terminal bonded gold wire 7 ; The radio frequency signal that enters from waveguide po...

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Abstract

The invention discloses a rectangular waveguide microstrip airtight seal transition circuit, and aims at providing the rectangular waveguide microstrip airtight seal transition circuit of low insertion loss, broad band and all airtight. The rectangular waveguide microstrip airtight seal transition circuit is implemented through the following technical scheme: the radio frequency signal entering from the waveguide port (8) is totally reflected on the center of a coaxial step cylinder (6) through a waveguide short surface (10) so as to form the wave loop of the strongest electric field. The electric field in the rectangular waveguide (1) is coupled to the microstrip line (5) airtight sealed in a microstrip cavity (14) through a segment of coaxial inner conductor probe (11) having the coupling effect to complete electromagnetic field mode conversion between the dominant modes of the rectangular waveguide and the microstrip line, and thus transmission of the electromagnetic signal in two different transmission media can be realized. The rectangular waveguide microstrip airtight seal transition circuit is compact in structure, broad in band and great in sealing performance and can meetthe sealing requirement of the rectangular waveguide port in the practical engineering and can greatly overcome the problems caused by using the antipodal fin line and the ridge waveguide for transition.

Description

technical field [0001] The invention relates to a sealed transition circuit for switching between a microstrip line and a rectangular waveguide for transmitting microwave signals in the field of microwave / millimeter wave circuits. Specifically, it relates to a rectangular waveguide-microstrip airtight transition circuit used for signal transmission between a rectangular waveguide of a microwave / millimeter wave module and a component and a microstrip circuit in an airtight isolation mode. Background technique [0002] Millimeter-wave hybrid integrated circuits and monolithic integrated circuits mostly use microstrip lines with simple structure and small size as radio frequency transmission lines. Rectangular waveguides are widely used in long-distance transmission systems in microwave / millimeter wave circuits and systems because of their large power capacity, low loss, no radiation loss, and high Q value. The waveguide-microstrip transition circuit is an important structure ...

Claims

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Application Information

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IPC IPC(8): H01P5/107
CPCH01P5/107
Inventor 党章刘祚麟李凯张能波忽文杰胡顺勇朱海帆
Owner 10TH RES INST OF CETC
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