Abstract
This paper presents a new type of second-order reconfigurable diplexers by using common lumped-element dual-resonance resonator (LE-DRR) and LC resonators. As examples, a 0.9/1.8 GHz second-order diplexer is firstly designed to investigate the design theory, which has merits of wide passband, low insertion loss and extremely compact size. Then, a second-order switchable diplexer is simply designed by embedding two p-i-n diodes in two end-stage LC resonators of the above diplexer to switch on/off each channel independently. Finally, the capacitors of the above diplexer are replaced by the varactor diodes, so that a second-order tunable diplexer with two independently tuned channels is proposed. Measured results of proposed tunable diplexer show that its lower channel can be tuned from 0.492 GHz to 0.995 GHz with corresponding frequency tuning range (FTR) of 66.58%, while its upper channel can be tuned from 0.974 GHz to 1.7 GHz with FTR of 51.92%.
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 callMore From: International Journal of RF and Microwave Computer-Aided Engineering
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.
