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

✍ Scribed by Ji-Chyun Liu; Chiung-Hung Li; Ching-Pin Kuei; Bing-Hao Zeng

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 433 KB
Volume: 51
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.24311

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✦ Synopsis

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 Hilbert‐curve perturbation and cascaded technique are proposed here. The equivalent circuit and Chebyshev response are presented for approximation and analysis. Results including surface current distributions and frequency responses are presented and discussed. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1294–1298, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24311

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

✍ Ji-Chyun Liu; Po-Chiang Lu; Jun-Mao Chang; Chi-Hsu Chien; Ching-Pin Kuei 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 409 KB

## 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 perturb