Title :
Microwave frequency discriminating devices based on composite right-/left-handed transmission-line unit-cell
Author :
Ahmed, Kafil Uddin
Abstract :
This paper reviews and presents design approaches for microwave filter and multiplexers based on resonant-type composite right/left-handed metamaterial. The proposed filter design offers better transmission performances in terms of insertion losses and out-of-band rejection. In addition, it enables substantial tuning to be achieved in the order of over 30 % at the unit-cell´s resonant frequency. The passband channels inside the new diplexer/triplexer topology have high isolation between them which is critical in order to prevent undesired interaction which would otherwise adversely affect their passband response.
Keywords :
band-pass filters; metamaterials; microwave filters; multiplexing equipment; composite right-left-handed transmission-line unit-cell; diplexer topology; filter design; insertion losses; microwave filter; microwave frequency discriminating device; multiplexer; out-of-band rejection; passband channel; passband response; resonant-type composite right-left-handed metamaterial; triplexer topology;
Conference_Titel :
Passive RF and Microwave Components, 3rd Annual Seminar on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-542-3
DOI :
10.1049/ic.2012.0062