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Novel dual‐mode square patch bandpass filter using slot‐type SRR perturbation for mode splitting
Author(s) -
Fu ShuHong,
Tong ChuangMing,
Li XiMin,
Zhou Ming
Publication year - 2011
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/mop.26148
Subject(s) - resonator , split ring resonator , degenerate energy levels , dual mode , microwave , physics , perturbation (astronomy) , topology (electrical circuits) , square (algebra) , passband , band pass filter , acoustics , optics , electronic engineering , engineering , electrical engineering , mathematics , geometry , quantum mechanics
A slot‐type split‐ring resonator (SRR) as a new type of perturbation element for dual‐mode square patch resonator is introduced in this article.The slot‐type SRR used in the patch resonator allows coupling between the two degenerate modes. Moreover, coupling characteristics can be adjusted by the location of slot‐type SRR. By adding two notches in the dual‐mode filter with slot‐type SRR, the high degenerate mode near the passband is eliminated, and the center frequency is lowered slightly. It has been verified by both simulation and measurement. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26148