Title :
Tunable coupled microstrip line isolator by oblique magnetization
Author :
Subbiah, Shanthi ; Alphones, Arokiaswami
Author_Institution :
Centre for Wireless Commun., Nat. Univ. of Singapore, Singapore
Abstract :
A tunable isolator using the coupled microstrip line is proposed. The tunability is obtained by varying the applied angle of the DC bias magnetic field at the YIG film. The nonreciprocal coupling between the two microstrip lines on a ferrite substrate can be used to create an isolation mechanism. A frequency tunable isolator is designed for use at the microwave frequency band.
Keywords :
ferrite isolators; garnets; magnetic thin films; magnetisation; microstrip components; yttrium compounds; DC bias magnetic field; YFe5O12; YIG; YIG film; ferrite substrate; microwave frequency band; nonreciprocal coupling; oblique magnetization; tunable coupled microstrip line isolator; Conductors; Coupling circuits; Ferrites; Filters; Frequency; Isolators; Magnetization; Microstrip; Phase shifters; Tunable circuits and devices;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187884
