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Quarter-structured substrate integrated waveguide bipass live-line tune filter

A technology for tuning filters and integrating waveguides, applied in waveguide-type devices, circuits, electrical components, etc., can solve the problems of volume and cost burden of communication systems, undesired filters, etc., and achieve light weight, reduced structure, and power capacity. big effect

Active Publication Date: 2017-12-15
YANCHUANG PHOTOELECTRIC TECH GANZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional solution is to use radio frequency switches to select filters with corresponding indicators, which imposes a burden on the volume and cost of the communication system, and as more and more communication systems need to be integrated, switchable filters are becoming more and more impossible Pick

Method used

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  • Quarter-structured substrate integrated waveguide bipass live-line tune filter
  • Quarter-structured substrate integrated waveguide bipass live-line tune filter
  • Quarter-structured substrate integrated waveguide bipass live-line tune filter

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Embodiment Construction

[0020] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0021] A quarter-structure substrate integrated waveguide double-pass charged tuning filter, comprising a dielectric substrate 1, a quarter copper-clad structure 21 on the upper surface of the dielectric substrate 1, and a lower layer metal copper 22 on the lower surface of the dielectric substrate 1;

[0022]The quarter copper-clad structure 21 is provided with a metallized through-hole 31 constituting the integrated waveguide of the ...

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Abstract

The invention provides a quarter-structured substrate integrated waveguide bipass live-line tune filter. The filter includes a dielectric substrate, a quarter copper-clad structure on the upper surface of the dielectric substrate, a lower copper metal on the lower surface of the dielectric substrate. The quarter copper-clad structure is provided with a metalized through hole that forms the substrate integrated waveguide, the left lower side of the quarter copper-clad structure is a 50-ohm input microstrip line, the right side of the L-shaped groove in the quarter copper-clad structure is provided with a complementary square spiral resonance ring, the right side of the 50-ohm input microstrip line is a big square metal plane, the center of the big square metal plane is provided with an inverted recessed punching metal sheet, the center of the inverted recessed punching metal sheet is provided with a center through hole, and six square metal pads are arranged under the quarter copper-clad structure and the 50-ohm input microstrip line. The filter has the characteristics of small size, low insert loss, continuous adjustment of center frequency, high outband suppression, convenient DC feed loading, fast tuning speed, and convenient tuning.

Description

technical field [0001] The invention relates to the field of microwave and millimeter wave technology, in particular to a quarter-structure substrate integrated waveguide double-pass charged tuning filter. Background technique [0002] With the continuous development of modern wireless communication, there are a large number of wireless communication services in different frequency bands, especially with the development of software radio technology, there is an urgent need to develop an RF front-end with multi-band coverage and tunable functional characteristics. The RF filter is an important part of the RF front-end of wireless communication. It is widely used to suppress the RF signal outside the frequency band to achieve the purpose of frequency band selection, suppress image interference, and reduce intermodulation distortion. It has the characteristics of tunable frequency response. Radio frequency modulation filters will be an important support for future wireless comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/20H01P1/212
CPCH01P1/2002H01P1/212
Inventor 徐自强谭力王晓薇吴孟强廖家轩夏红李元勋巩峰
Owner YANCHUANG PHOTOELECTRIC TECH GANZHOU
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