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Filter and electronic device

A filter and bandpass filter technology, which is applied in the field of signal processing, can solve the problems of large filter size and high design cost, and achieve the effect of low manufacturing cost and small space occupation

Pending Publication Date: 2022-07-29
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a filter and electronic equipment, which are used to realize the functions of broadband band-pass, dual-band band-pass and band-rejection in the same communication device, but the filter occupies a large volume and the design cost is high.

Method used

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  • Filter and electronic device
  • Filter and electronic device
  • Filter and electronic device

Examples

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Embodiment Construction

[0039] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

[0040] Other embodiments of the present application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of this application that follow the general principles of this application and include common knowledge or conventional techniques in the ...

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Abstract

The invention provides a filter and electronic equipment, and relates to a signal processing technology. The filter comprises a signal input end, a signal output end, at least one coupling circuit and a switching module. The at least one coupling circuit is connected in series between the signal input end and the signal output end; at least one coupling circuit is connected in parallel with the switching module; wherein when the switching module is in the first connection state, the filter is a broadband band-pass filter; when the switching module is in the second connection state, the filter is a dual-band band-pass filter, and when the switching module is in the third connection state, the filter is a band elimination filter. Therefore, the same filter can realize the functions of broadband band-pass, dual-band band-pass and band elimination. It can be understood that the filter capable of achieving the broadband band-pass function, the dual-band band-pass function and the band-stop function is small in occupied space and low in manufacturing cost.

Description

technical field [0001] The present application relates to signal processing technology, and in particular, to a filter and electronic equipment. Background technique [0002] A filter is a frequency-selective device that allows certain frequency components in a signal to pass while greatly attenuating other frequency components. Using this frequency selection function of the filter, interference noise can be filtered out or spectrum analysis can be performed. [0003] Types of filters include wideband bandpass filters, dual band bandpass filters, and bandstop filters. At present, in order to realize the functions of broadband bandpass, dual band bandpass and bandstop in the same communication device, it is necessary to install the broadband bandpass filter, dual band bandpass filter, and bandpass filter at three positions of the communication device respectively. blocking filter. In this way, the installed broadband band-pass filter, dual-band band-pass filter, and band-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/01
CPCH03H7/0138H03H7/0161H03H2007/013
Inventor 邓希达董戈
Owner TSINGHUA UNIV