Compact bandpass filter design using folded coupled‐line resonators | Zendy

Wang Wen | Zendy; Fu Jeffrey S. | Zendy; Lu Yilong | Zendy; Xiong Yong Zhong | Zendy

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Compact bandpass filter design using folded coupled‐line resonators

Author(s) -

Wang Wen,

Fu Jeffrey S.,

Lu Yilong,

Xiong Yong Zhong

Publication year - 2005

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.20714

Subject(s) - band pass filter , resonator , electronic engineering , electronic filter topology , filter (signal processing) , footprint , filter design , microwave , engineering , prototype filter , m derived filter , line (geometry) , topology (electrical circuits) , electrical engineering , mathematics , telecommunications , geometry , paleontology , biology

In this paper, a compact bandpass filter using folded λ/4 coupled‐line resonators is presented. An accurate model is made by using an efficient analytic design approach. Equations for extraction of the equivalent parallel‐coupled‐line structure representing the folded‐line section are developed. A simple systematic design procedure is established for filter designers. Finally, a three‐pole bandpass filter for the new resonators is designed. The new folded coupled‐line filter exhibits a significant reduction in footprint as compared to the conventional design. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 32–35, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20714

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