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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2010-03-30
A Dual-Band Bandpass Filter Having Wide and Narrow Bands Simultaneously Using Multilayered Stepped Impedance Resonators
By
Min-Hang Weng,

    Dr. Min-Hang Weng

    Medical devices and opto-electronics equipment department

    Metal Industries Research & Development Center

    Taiwan

    Homepage

Shih-Kun Liu,

    Dr. Shih-Kun Liu

    Institute of Photonics and Communications

    National Kaohsiung University of Applied Sciences

    Taiwan

    Homepage

Hung-Wei Wu,

    Prof. Hung-Wei Wu

    Department of Computer & Communication

    Kun Shan University

    Taiwan

    Homepage

Chia-Ho Hung

    Dr. Chia-Ho Hung

    National Kaohsiung University of Applied Sciences

    Taiwan

    Homepage

Progress In Electromagnetics Research Letters, Vol. 13, 139-147, 2010
doi:10.2528/PIERL10022401 | Google Scholar

Abstract
Compact dual-band bandpass filter (BPF) with wide and narrow bands simultaneously is presented. By using the stepped impedance resonators (SIRs) in multilayered structure, the dual-band responses with wide and narrow bands simultaneously can be obtained. The filter has 3-dB fractional bandwidths (FBWs) of 45% and 10% for 2.4 GHz and 5.2 GHz, respectively. The circuit size is compact due to the multilayered structure. Moreover, multi-path propagation inside the multilayered structure generates transmission zeros at each skirt of the passbands for improving the passband selectivity. Measured results of the filter are in good agreement with the full-wave electromagnetic (EM) simulation.
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Citation
Min-Hang Weng, Shih-Kun Liu, Hung-Wei Wu, and Chia-Ho Hung, "A Dual-Band Bandpass Filter Having Wide and Narrow Bands Simultaneously Using Multilayered Stepped Impedance Resonators," Progress In Electromagnetics Research Letters, Vol. 13, 139-147, 2010.
doi:10.2528/PIERL10022401
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