Title :
Varactor loaded tunable split ring resonators with simple biasing network
Author :
Matthias Maasch;Christian Damm;Martin Schüßler;Erick González-Rodríguez;Rolf Jakoby
Author_Institution :
Microwave Engineering, Department of Electrical Engineering and Information Technology, Technische Universitä
fDate :
3/1/2011 12:00:00 AM
Abstract :
A concept for a voltage tunable split ring resonator array inside a WR90 waveguide operated below its cutoff frequency is presented. The DC tuning voltage is provided by using the existing RF structure for DC biasing. Tuning the semiconductor varactors shifts the backward wave transmission band below the waveguide cutoff frequency in the range of 0.9-2.2 GHz. The parasitic effects of the biasing network as well as the higher order mode coupling in the macroscopic structure are investigated. Experimental results are compared to theory in order to validate the biasing concept.
Keywords :
"Tuning","Arrays","Varactors","Load modeling","Resonant frequency","Resistors","Microwave theory and techniques"
Conference_Titel :
Microwave Conference (GeMIC), 2011 German
Print_ISBN :
978-1-4244-9225-1
