Abstract
This letter presents a high- ${Q}$ quadruple-mode rectangular waveguide resonator. The resonator has a ${Q}$ better than 14 500 in all the four modes at 3.7 GHz using an aluminum cavity. Two narrowband filters (fourth and eighth order) at 3.7 GHz with a bandwidth (BW) of 50 MHz (1.35%) are realized using the proposed resonator as a proof of concept. Due to the high- ${Q}$ nature of the resonator, the filters exhibit very low insertion loss which is better than 0.3 and 1 dB for the fourth- and eighth-order filters, respectively. Furthermore, a transversal coupling scheme is also explored to enhance the spurious performance.
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.
