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Direct-coupling substrate integrated wave-guide circular cavity wave-filter

A technology that integrates waveguides and circular cavities on a substrate, which is applied to waveguide-type devices, electrical components, circuits, etc., can solve the problems of bulky, high cost, and difficult to integrate, and achieve the effect of small size, low cost, and good integration.

Inactive Publication Date: 2006-10-25
SOUTHEAST UNIV
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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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  • Direct-coupling substrate integrated wave-guide circular cavity wave-filter
  • Direct-coupling substrate integrated wave-guide circular cavity wave-filter
  • Direct-coupling substrate integrated wave-guide circular cavity wave-filter

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Embodiment Construction

[0019] A direct-coupled substrate-integrated waveguide circular cavity filter for filtering, comprising a dielectric substrate 1 with metal patches 2 and 3 on both sides, and a substrate-integrated waveguide on the dielectric substrate 1 The circular cavities 4 are coupled through waveguides 5 between the substrate-integrated waveguide circular cavities, and the substrate-integrated waveguide circular cavities 4 on both sides are respectively connected with microstrip lines 6 and 7. The chip integrated waveguide circular cavity 4 is composed of metallized through-holes 8 arranged on the dielectric substrate 1 and arranged in a circle. The waveguide 5 is composed of two rows of metallized through-holes 9. Open a through hole on the substrate, set a metal sleeve 10 on the wall of the through hole and connect the metal sleeve with the metal patches covering both sides of the dielectric substrate. In this embodiment, the microstrip lines 6 and 7 pass through the coplanar The waveg...

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Abstract

This invention discloses a direct coupled chip integration waveguide round cavity filter including a medium chip set with metal pastes on the positive and negative faces, in which, chip integrated waveguide round cavities are set on the chip, the cavities are coupled by the waveguide and microstrip lines are connected on the cavities at the edges of both sides, said cavities are composed of metal through holes on the chip arrayed in circle and the waveguide is composed of two lines of metal through holes.

Description

technical field [0001] The invention relates to a key component of a microwave and millimeter radio frequency subsystem, in particular to a direct-coupled substrate integrated waveguide circular cavity filter for a microwave and millimeter wave integrated circuit. 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 direct-coupled substrate-integrated wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/207
Inventor 洪伟张玉林华光汤红军陈继新吴柯
Owner SOUTHEAST UNIV
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