A HIGH BAND ISOLATION AND WIDE STOPBAND DIPLEXER USING DUAL-MODE STEPPED-IMPEDANCE RESONATORS | Zendy

Chun-Yueh Huang | Zendy; MinHang Weng | Zendy; ChangSin Ye | Zendy; Yong-Xiang Xu | Zendy

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A HIGH BAND ISOLATION AND WIDE STOPBAND DIPLEXER USING DUAL-MODE STEPPED-IMPEDANCE RESONATORS

Author(s) -

Chun-Yueh Huang,

MinHang Weng,

ChangSin Ye,

Yong-Xiang Xu

Publication year - 2010

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier09112701

Subject(s) - diplexer , stopband , resonator , electrical impedance , multi band device , materials science , isolation (microbiology) , dual mode , dual (grammatical number) , acoustics , optoelectronics , electronic engineering , physics , electrical engineering , computer science , telecommunications , engineering , antenna (radio) , art , microbiology and biotechnology , literature , biology

In this paper, a high performance diplexer is designed and fabricated for Global Positioning System (GPS) and wireless local area network (WLAN) applications simultaneously. The diplexer mainly comprises two dual-mode ring bandpass fllters (BPFs), operated at 1.575GHz and 2.4GHz, respectively. By using the stepped-impedance resonator (SIR) in the BPFs, the size reduction and wide stopband from 2.8GHz to 6GHz are obtained. Moreover, several transmission zeros are located at the passband edges, thus improving the passband selectivity. Due to impedance matching between two BPFs, a high

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