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Design of multilayered dual-band bandpass filter using cross-coupled stepped impedance resonators

✍ Scribed by Min-Hang Weng; Yu-Chi Chang; Hung-Wei Wu; Chun-Yueh Huang

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
306 KB
Volume
49
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

In this letter, a multilayered dual‐band bandpass filter (BPF) using cross‐coupled stepped impedance resonators (SIRs) is designed and implemented. By determining the impedance ratio (K) and physical length (α) of the SIRs, the dual‐band response at 2.4/5.2 GHz can be achieved. Cross‐coupling effect between two layers is introduced to generate the transmission zeros and improve the passband selectivity of the filter. In addition, the filter size is greatly reduced because of the use of multilayered folded SIRs. The measured results are in good agreement with the full‐wave simulation results. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2713–2717, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22853

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