Title: Non-coaxial substrate integrated waveguide circular cavity filter
Application Number: 200610038498 Application Date: 2006.02.27
Publication Number: 1825681 Publication Date: 2006.08.30
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01P1/207
Applicant(s) Name: Dongnan Univ. Address: 210096
Inventor(s) Name: Hong Wei
Attorney & Agent: lu zhibin
Abstract:
     The invention discloses a non-coaxial substrate integrated waveguide circular cavity filter, comprising a dielectric substrate with double sides provided with metal chips, where the substrate is provided with two substrate integrated waveguide circular cavities, there is coupling hole arranged between the two cavities, the two cavities are provided with signal input microband transmission line and signal output microband transmission line, respectively, and a connection line between the centers of each cavity and its corresponding input (output) port makes an included angle of 60 deg.-90 deg. with that between the centers of it and the coupling hole. And the invention has advantages of balanced upper and lower side band performances, convenient to integrating with an active circuit, good selectivity, low cost, high accuracy, easy to make large-scale production, etc.
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