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A waveguide step attenuator

An attenuator and signal attenuation technology, applied in the field of electronic communication, can solve the problems of high difficulty in processing and assembly, step attenuators that cannot be applied to the THz frequency band, and cannot be used

Inactive Publication Date: 2021-07-23
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of attenuator is widely used in the low frequency range, but as the frequency increases to the THz frequency band, the traditional coaxial step attenuator cannot be used due to the small parts and high difficulty in processing and assembly; in addition, when the frequency increases to After the THz frequency band, the external interface of the microwave test system has also changed from coaxial at low frequency to waveguide
[0004] That is, the traditional step attenuator cannot be applied to the THz frequency band due to the limitation of its own structural characteristics.

Method used

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Embodiment Construction

[0033] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0034] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0035] In the present invention, the orientations or positional relationships indicated by terms such as "top", ...

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Abstract

The invention discloses a waveguide step attenuator, which comprises a cavity, a cover plate and several attenuating components; the cover plate is fixedly arranged on the top of the cavity; the attenuating component is arranged in the space formed by the cavity and the cover plate; It includes a sliding block, and the inside of the sliding block is provided with two straight-through signal channels and attenuation signal channels arranged in parallel up and down; the attenuation values ​​of different attenuation signal channels are different; the attenuation component is slidably connected to the cavity; the attenuation component slides up and down to make The centerline of the through or attenuated signal path is collinear with the centerline of the input. In the present invention, several attenuating components that can slide up and down are arranged in the cavity, so that the direct signal channel or different attenuating signal channels are connected with the input signal channel and the output signal channel, so that the specification or quantity of the attenuating sheets connected to the signal channel can be controlled. , to realize the step control of the attenuation value of the signal channel between the input port and the output port.

Description

technical field [0001] The invention belongs to the technical field of electronic communication, and in particular relates to a waveguide step attenuator. Background technique [0002] The attenuator is a passive two-port network, which is often used to control the input and output signals of the system, and has the function of adjusting circuit matching, etc., making it widely used in various test systems. [0003] Traditional step attenuators usually adopt a coaxial structure, that is, the attenuation can be controlled by controlling the conduction state of the suspension line and the through reed or attenuator. This kind of attenuator is widely used in the low frequency range, but as the frequency increases to the THz frequency band, the traditional coaxial step attenuator cannot be used due to the small parts and high difficulty in processing and assembly; in addition, when the frequency increases to After the THz frequency band, the external interface of the microwave ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/22
Inventor 王书见王景新牛之友熊为华汪择宏文春华姜万顺
Owner CHINA ELECTRONIS TECH INSTR CO LTD
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