Title :
Magnetically tunable microstrip resonator based on polycrystalline ferrite
Author :
Dubey, A. ; Tyagi, G.S. ; Srivastava, G.P.
Author_Institution :
Dept. of Phys. & Comput. Sci., Dayalbagh Educ. Inst., Agra, India
fDate :
10/11/2001 12:00:00 AM
Abstract :
A conventional microstrip ring resonator consisting of a polycrystalline ferrite substrate is demonstrated. This resonator produces improved tunability compared with other available versions. Resonators with tunability approaching 31% at a minimum insertion loss of 11.17 dB in a magnetic field of 3 kG applied longitudinally along wave propagation have been demonstrated using LiZiTi ferrite composition. Tunability of 31% is the best reported for any tunable structure
Keywords :
ferrite devices; lithium compounds; magnetic microwave devices; microstrip resonators; titanium compounds; tuning; zinc compounds; 11.17 dB; 3 kG; LiZnTiFe2O4; insertion loss; magnetic field; microstrip ring resonator; polycrystalline ferrite substrate; tunability;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010886
