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Novel dual-mode square-loop resonators using Hilbert perturbation for simultaneous size reduction and mode splitting

✍ Scribed by Ji-Chyun Liu; Po-Chiang Lu; Jun-Mao Chang; Chi-Hsu Chien; Ching-Pin Kuei

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 409 KB
Volume: 49
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.22503

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✦ Synopsis

Abstract

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

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Cascaded dual-mode square-loop resonator

Cascaded dual-mode square-loop resonators using Hilbert-curve perturbation for wide bandpass filter applications

✍ Ji-Chyun Liu; Chiung-Hung Li; Ching-Pin Kuei; Bing-Hao Zeng 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 433 KB

## Abstract The cascaded dual‐mode square‐loop resonator (DMSLR) with Hilbert‐curve perturbation is introduced to design wide band‐pass filter in this article. To obtain low insertion loss (__−__0.85 dB), high out‐of‐band rejection level (__−__51.82 dB), and wider band (BW 62.3%) responses, using H