Abstract
This paper proposes a compact circular cavity for dual-mode substrate integrated waveguide (SIW) filter design. By adding a pair of symmetrical metallic via-holes perturbations, the coupling between a pair of orthogonal high order modes TM110 is induced. Transmission zeros can be obtained at upper side and lower side of the passband to enhance selectivity of the SIW filter. Therefore, flexible design and compact structure are available for the dual-mode SIW filter at Q-band. The experimental results show that the center frequency of the filter is 44.86 GHz with a 3-dB FBW of 10.5% and the minimum insertion loss in-band is about 1.8 dB.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
