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Adjustable band elimination filter

A filter and adjustable resonator technology, applied in waveguide devices, electrical components, circuits, etc., can solve the problems of single implementation, difficult assembly, low reliability, etc., achieve small size, simple structure, and enhanced receiving sensitivity Effect

Inactive Publication Date: 2011-01-05
DFINE TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the technical problems of existing band-stop filters such as single implementation, complex structure, large size, difficult assembly, and low reliability, so as to provide an adjustable band-stop filter with small insertion loss, easy to manufacture, and trouble-free. Low efficiency, safe and reliable, adjustable band-stop filter that meets ROUHS standards

Method used

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Embodiment Construction

[0025] The detailed structure of the present invention, application principle, function and effect, refer to the appended figure 1 , which will be described through the following embodiments.

[0026] refer to figure 1 As shown in -2, the adjustable band-stop filter of the present invention is composed of an input and output port, an adjustable resonator and a microstrip coupling transmission line, and the input port 1 is connected in series with the microstrip coupling transmission line-2, the microstrip coupling transmission line Two 3, microstrip coupling transmission line three 4, microstrip coupling transmission line four 5 and microstrip coupling transmission line five 6 are connected to output port 7; adjacent microstrip coupling transmission line one 2 and microstrip coupling transmission line two 3 are connected with tunable Resonator two 9; Adjacent microstrip coupling transmission line two 3 and microstrip coupling transmission line three 4 are connected with adjus...

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Abstract

The invention relates to an adjustable band elimination filter, relating to the field of electronic communication and aiming at solving the technical problems of single realization mode, complex structure, large size, difficult assembly, low reliability and the like existing in the traditional band elimination filter. The adjustable band elimination filter comprises an input port, an output port, adjustable resonators and micro-band coupled transmission lines, wherein the input port (1) is connected with a plurality of sections of the micro-band coupled transmission lines in sequence in series and then is connected with the output port (7); one end of one adjustable resonator (8) is connected between the input port (1) and the adjacent micro-band coupled transmission line (2), and the other end is grounded; one adjustable resonator is connected between any two adjacent micro-band coupled transmission lines, one end of the adjustable resonator is connected between the adjacent micro-band coupled transmission lines, and the other end is grounded. The invention is applicable to the design of the adjustable band elimination filter.

Description

technical field [0001] The invention relates to the field of electronic communication, in particular to an adjustable band-stop filter used in the fields of triple network integration, mobile communication, microwave communication, satellite communication, aerospace electronic equipment and the like. Background technique [0002] The adjustable band-stop filter is a key component in the communication system. Due to the frequency selectivity of the resonator, the signal of the specified frequency can pass through the device, and the energy other than the specified frequency signal is reflected, thereby realizing the function of frequency selection. [0003] The application market of adjustable band-stop filter includes the fast-growing triple play market. With the rapid promotion of triple play, the speed of broadband network construction will be accelerated. Experts estimate that there will be 60 billion investment in network bandwidth construction. Adjustable The successful...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/20H01P1/203
Inventor 彭飞李承泽姚华
Owner DFINE TECH
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