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Split modes in asymmetric microstrip ring resonator by flexible perturbation
Author(s) -
Yogi R. A.,
Gangal S. A.,
Aiyer R. C.,
Karekar R. N.
Publication year - 1998
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19981005)19:2<168::aid-mop20>3.0.co;2-0
Subject(s) - microstrip , microwave , resonator , perturbation (astronomy) , amplitude , strips , physics , dielectric resonator , perturbation theory (quantum mechanics) , optics , acoustics , materials science , quantum mechanics , composite material
The microwave microstrip ring resonator (MRR) is perturbed by a flexible, nondestructive method of keeping cross and partial overlays of Al 2 O 3 strips. The splitting of the resonance curve is observed with amplitude variations as expected theoretically, but is not observed below a critial perturbation. Further empirical relations are reported for the first time, for the odd‐mode frequency ( f ro ) and even‐mode frequency ( f re ) variations, giving f re changes proportional to the perturbation, but f ro being independent of the same. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 168–171, 1998