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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2010-05-17
Design of a Dual-Mode Dual-Band Filter Using Stepped Impedance Resonators
By
Long Guo,

    Dr. Long Guo

    University of Electronic Science and Technology of China

    China

    Homepage

Zhi-Yuan Yu,

    Dr. Zhi-Yuan Yu

    School of Physic electronics

    University of Electronic Science and Technology of China

    China

    Homepage

Long Zhang

    Mr. Long Zhang

    University of Electronic Science and Technology of China

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 14, 147-154, 2010
doi:10.2528/PIERL10032601 | Google Scholar

Abstract
A microstrip dual-mode dual-band bandpass filter using stepped impedance resonators (SIRs) is designed for dual-band wireless local area network (WLAN) applications at 2.4 and 5.2 GHz. By appropriately selecting the impedance ratio (Rz) and length ratio (α) of the SIRs, the harmonic frequencies can be tuned for generating the dual-bandpass response. Based on SIRs, a dual-mode dual-band bandpass filter is designed with one transmission zero. To improve the selectivity, another three transmission zeros in stopbands be created by introducing two stubs in input/output (I/O) lines. Two experimental filters are fabricated. Both simulated resulted and measured resulted are presented.
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Citation
Long Guo, Zhi-Yuan Yu, and Long Zhang, "Design of a Dual-Mode Dual-Band Filter Using Stepped Impedance Resonators," Progress In Electromagnetics Research Letters, Vol. 14, 147-154, 2010.
doi:10.2528/PIERL10032601
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