Abstract

A compact substrate-integrated waveguide (SIW) filtering crossover is presented by embedding CPW quarter-wavelength resonators. By fully exploiting the orthogonality of the degenerate TE201 and TE 201 modes in an SIW square cavity, cross transmission and excellent isolation can successfully be realized for the two channels. Additionally, with four CPW quar-ter-wavelength resonators coupled at central symmetrical plane of the cavity, third-order filtering responses can be implemented for both transmission channels while maintaining an acceptable isolation. Benefitting from the embedded scheme of CPW resonators, a significant footprint reduction has been achieved for the crossover. A prototype centered at 10 GHz with ripple-fractional bandwidth of 4.05% is synthesized, designed, fabricated, and tested for demonstration, showing an isolation better than 22.5 dB over the interested band.

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 call

Disclaimer: 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.