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Novel dual‐mode square‐loop resonators using Hilbert perturbation for simultaneous size reduction and mode splitting
Author(s) -
Liu JiChyun,
Lu PoChiang,
Chang JunMao,
Chien ChiHsu,
Kuei ChingPin
Publication year - 2007
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.22503
Subject(s) - resonator , microwave , perturbation (astronomy) , hilbert space , dual mode , insertion loss , physics , loop (graph theory) , multi band device , mathematics , topology (electrical circuits) , electronic engineering , optics , engineering , telecommunications , quantum mechanics , electrical engineering , combinatorics , antenna (radio)
The novel dual‐mode square‐loop resonator (DMSLR) with Hilbert perturbation is introduced to design bandpass filter in this paper. To obtain low insertion loss (0.55 dB), high out‐of‐band rejection level (−28.8 dB), and wider splitting band (BW 26.14%) filters, iterative Hilbert perturbation and space‐filling technique usage are proposed here. Significant size reduction of over 19% is obtained at 0.948 GHz. Results including surface current distributions and frequency responses are presented and discussed. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1735–1739, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22503