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Waveguide probe coupler

A probe coupling and waveguide technology, applied in waveguide-type devices, circuits, connecting devices, etc., can solve problems such as large fluctuations in coupling amount, and achieve the effects of small size, improved signal detection accuracy, and simple and reliable structure

Active Publication Date: 2017-11-07
PIVOTONE COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem of large fluctuations in the coupling amount in the wide frequency range existing in the prior art, and to provide a waveguide probe coupler with excellent coupling flatness in the wide frequency range

Method used

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Embodiment Construction

[0027] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0028] Aiming at the problem of large fluctuations in the coupling amount in the wide frequency range existing in the traditional waveguide probe coupler, the idea of ​​the present invention is to optimize the internal structure of the coupling via so that the equivalent circuit of the coupling via in the coupler is expressed as A plurality of coaxial transmission lines with different characteristic impedances are connected in series to compensate for the flatness of the coupling amount, thereby effectively improving the flatness of the coupling amount of the waveguide probe coupler of the present invention in an extremely wide frequency range, thereby greatly improving the system Signal detection accuracy.

[0029] There are many ways to realize the above-mentioned optimized structure, and the present invention preferably adopts at least one of the fol...

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Abstract

The invention discloses a waveguide probe coupler, and belongs to the technical field of electrommunication components and parts. For solving the problem that in the prior art, the coupling amount fluctuations are large within the broadband range, the internal structure of coupling through holes of the waveguide probe coupler is optimized, the multiple coupling through holes are connected in series through coaxial transmission lines with different characteristic impedances in an equivalent circuit in the coupler, and the flatness of the coupling amount is compensated for, so that the coupling amount flatness of the waveguide probe coupler within the ultra-broadband range can be effectively improved, and the signal detection accuracy of the system is greatly improved. On one hand, the advantages that a traditional waveguide probe coupler is simple and reliable in structure, small in size and low in cost are reserved; on the other hand, the coupling flatness index can be lowered to one tenth or lower of the coupling flatness index of the traditional waveguide probe coupler.

Description

technical field [0001] The invention relates to a coupler, in particular to a waveguide probe coupler, and belongs to the technical field of electronic communication components. Background technique [0002] The waveguide probe coupler has the advantages of simple and reliable structure, small size and low cost, and is a microwave device commonly used in satellite communication systems. This device is often used in the front section of the waveguide to extract a coupling signal with a certain amount of coupling and monitor the working status of the entire communication system. It is a weakly coupled coupler. [0003] At present, the traditional waveguide probe coupler is to directly open a coupling hole on the waveguide wall at the wide side of the waveguide, and extend the metal core of the coaxial connector (such as an SMA connector) into the waveguide cavity to couple a certain proportion. the coupling signal. The structure is only composed of two parts, a waveguide cav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/12
CPCH01P5/12
Inventor 江顺喜周方平殷实梁国春项显赵媛媛
Owner PIVOTONE COMM TECH
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