Half-modular substrate integral wave guide filter

A half-mode substrate integration, waveguide filter technology, which is applied to waveguide-type devices, electrical components, circuits, etc., can solve the problems of difficult processing of filters, expensive production costs, high processing accuracy, etc., and achieves high Q value, high Q-values, easy-to-integrate effects

Inactive Publication Date: 2007-03-07
SOUTHEAST UNIV
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Problems solved by technology

Traditional microwave and millimeter wave metal waveguides can produce high-Q, low-loss, high-performance microwave filters, but this kind of filter is firstly difficult to process and requires high processing precision; secondly, the production cost is relatively expensive; thirdly, this kind of filter is difficult to process. The size of the filter is relatively large, and it is difficult to apply it to the design of microwave and millimeter wave integrated circuits

Method used

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  • Half-modular substrate integral wave guide filter
  • Half-modular substrate integral wave guide filter

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Embodiment Construction

[0018] We have implemented the semi-mode substrate integrated waveguide filter described above with a printed circuit board (Printed Circuit Board) process, with a center frequency of 7.8GHz and a relative bandwidth of 22%. The diameter of the metal through hole used to form the dielectric integrated waveguide is 0.4m, the distance between the through holes is 0.8mm, and the relative dielectric constant of the dielectric substrate is 2.25. The structure of the filter includes a dielectric substrate 1, a metal patch 2. Metal through hole 3, slot 6); a metal patch 2 is provided on the surface of the dielectric substrate 1, the middle part of the metal patch 2 is rectangular, and both sides are strip-shaped, respectively connected to the input terminal 5 and the output terminal 6 ; In the middle of the metal patch 2, a row of metal through holes 3 are provided along one side of the middle of the metal patch 2, and a slot 6 is provided on the other side; a section of half-mode subs...

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Abstract

This invention relates to semi-mode base slice integration waveguide filter applied in microwave circuit design, which comprises base, metal sticking pad, metal hole, and tank beam, wherein, metal sticking pad on medium base surface with rectangle in middle part and with two sides connected to input and output ends; locating one row of metal holes in one side in metal sticking part and other side set with tank seam; two tank beam one semi-mode base integration waveguide form one quarter of wave length resonance.

Description

technical field [0001] The half-mode substrate integrated waveguide filter can be used in the design of microwave and millimeter wave circuits, and can also be used in the design of microwave and millimeter wave integrated circuits. It belongs to the technical field of microwave filters. Background technique [0002] Microwave and millimeter wave filters are at the center of many design issues in microwave and millimeter wave RF systems such as frequency converters, frequency multipliers, and multiplex communications. The electromagnetic spectrum is limited and must be allocated according to the application; and the filter can be used to limit the radiation of the high-power transmitter in the specified frequency band, and in turn can be used to prevent the receiver from being interfered with outside the working frequency band. Traditional microwave and millimeter wave metal waveguides can produce high-Q, low-loss, high-performance microwave filters, but this kind of filter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/209H01P1/207
Inventor 洪伟董元旦王元庆
Owner SOUTHEAST UNIV
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