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Substrate integrated waveguide quasi-sensitive window filter

A substrate integration and filter technology, applied in the coupling of optical waveguide, optical waveguide, etc., can solve the problems of difficult microwave and millimeter wave integrated circuit design, difficult processing of filters, high production cost, etc., and achieve low loss , High Q value, the effect of high Q value

Inactive Publication Date: 2007-03-14
SOUTHEAST UNIV
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Problems solved by technology

High-Q, low-loss, high-performance microwave filters can be produced by using microwave and millimeter-wave metal waveguides, but this kind of filter is firstly difficult to process and requires high processing accuracy; secondly, the production cost is relatively expensive; thirdly, this kind of filter The volume of the device is relatively large, and it is difficult to apply to the design of microwave and millimeter wave integrated circuits

Method used

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Embodiment Construction

[0017] The substrate integrated waveguide quasi-inductive window filter of the present invention comprises a metal patch 1, a dielectric substrate 2, and a metal through hole 3; The middle part is rectangular, and the two ends are called "funnel"-shaped ports. In the rectangle in the middle of the metal patch 1, there are four pairs of middle metal through holes 31 arranged along the direction from the input end 4 to the output end 5. The middle metal through holes are divided into four rows. Arrangement, in which 4 middle metal through-holes are located in the middle two rows, and the other 4 middle metal small through-holes are located on both sides of the metal middle large through-hole. The outer connection lines of the metal middle large through-hole form a small rectangle, and the outer sides of the metal middle small through-hole The connecting lines form a large rectangle. The aperture vr=0.2~0.8mm of the metal via 3, the pitch d=0.8~1.2mm. The microstrip line width w=1...

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Abstract

The substrate-integrated waveguide pseudo-inductive window filter for wavelet / millimeter wave circuit comprises: a metal paster (1) on the media substrate (2), which has rectangular middle and funnel-like ends; four couple of through holes (31) in middle rectangle of (1) arranged from the input end (4) to the output end (5) as four rows, wherein, four large holes on the middle rows. Compared with prior art, this invention is convenient to integrate and process with low cost.

Description

technical field [0001] The invention is a substrate integrated waveguide quasi-inductive window filter which can be applied to 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. High-Q, low-loss, high-performance microwave filters can be produced by using microwave and millimeter-wave meta...

Claims

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Application Information

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IPC IPC(8): G02B6/24G02B6/12
Inventor 洪伟王元庆董元旦
Owner SOUTHEAST UNIV
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