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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2011-09-13
Compaccompact Dual-Mode Triple-Band Transversal Microstrip Bandpass Filter
By
Jing Li,

    Dr. Jing Li

    College of Science

    China Three Gorges University

    China

    Homepage

Chao Lei Wei

    Dr. Chao Lei Wei

    University of Electronic Science and Technology of China

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 26, 161-168, 2011
doi:10.2528/PIERL11072704 | Google Scholar

Abstract
A novel microstrip dual-mode tri-band bandpass filter is presented. The filter consists of an open stub loaded dual-mode resonator and two short stub loaded dual-mode resonators. By utilizing the odd- and even-mode resonance properties of the proposed dual-mode resonators and the introduced source-load coupling (S-L coupling), the filter is designed with two transmission zeros at both sides of each passband, which will improve the selectivity of the filter. To validate the design theory, one 100 MHz 3 dB absolute equal bandwidths dual-mode tri-band filter with three passbands located at the centre frequencies of 1.8, 2.4 and 5.0 GHz, respectively, is designed and fabricated. Both experimental results agree well with the simulations.
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Citation
Jing Li, and Chao Lei Wei, "Compaccompact Dual-Mode Triple-Band Transversal Microstrip Bandpass Filter," Progress In Electromagnetics Research Letters, Vol. 26, 161-168, 2011.
doi:10.2528/PIERL11072704
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