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A filter of direct coupling triangle substrate integral waveguide cavity

A cavity filter and triangular base technology, applied in the field of filters, can solve the problems of high cost, bulky, difficult integration, etc., and achieve the effect of low cost, strong anti-interference ability, and easy integration

Inactive Publication Date: 2007-05-16
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Filters manufactured by traditional technologies for manufacturing high-quality factor microwave and millimeter-wave filters (such as traditional metal waveguides) have the advantages of high quality factor value and low loss, but at the same time have the disadvantages of bulky, high cost, and difficulty in integration.

Method used

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  • A filter of direct coupling triangle substrate integral waveguide cavity
  • A filter of direct coupling triangle substrate integral waveguide cavity

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Embodiment Construction

[0017] A direct-coupled triangular substrate integrated waveguide cavity filter, referring to Figure 1, includes isosceles triangular cavities 1, each isosceles triangular cavity 1 is arranged in sequence to form a regular polygon, wherein any two adjacent isosceles triangular cavities The bodies are the start cavity and the end cavity respectively. The input port 2 and the output port 3 are respectively provided on the start cavity and the end cavity, and a coupling is provided between the start cavity and its adjacent cavity. Window 4, a coupling window is provided between the end cavity and its adjacent cavity, a coupling window is provided between adjacent cavities and the adjacent cavity is located between the start cavity and the end cavity Among them, the above-mentioned isosceles triangular cavity is composed of metallized through holes on the dielectric substrate 5 covered with metal foils 6 and 7 on both sides, and the metallized through holes are arranged in an isosc...

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Abstract

The disclosed direct-coupled triangular-substrate integrated waveguide cavity filter comprises: some isosceles triangular cavities to form regular polygon with any two near cavities as the initial and final cavity respectively; the inlet and outlet ports on cavity, the coupling window between the initial / final initial cavity and near one, and the cavities set between the initial and final cavities. This invention has well property beyond the pass band, and well square coefficient and selectivity on transfer parameters.

Description

technical field [0001] The invention relates to a filter, in particular to a directly coupled triangular substrate integrated waveguide cavity filter which can be used in the design of microwave and millimeter wave integrated circuits. Background technique [0002] The microwave and millimeter wave filter is a key component of the microwave and millimeter radio frequency subsystem, especially in the microwave and millimeter wave integrated circuits, the radio frequency front-end needs to use a filter with low insertion loss and good selectivity. Filters manufactured by traditional high-quality factor microwave and millimeter-wave filter technologies (such as traditional metal waveguides) have the advantages of high quality factor value and low loss, but at the same time have the disadvantages of bulkiness, high cost, and difficulty in integration. Contents of the invention [0003] The invention provides a small size, low cost, high quality factor, low insertion loss, easy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/207H01P5/00
Inventor 洪伟张玉林吴柯陈继新
Owner SOUTHEAST UNIV
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