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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2017-02-06
Highly Selective Lossy Dual-Band Bandstop Filter Synthesis and Design Based on Predistortion Hybrid Dual-Band Elliptic Refection Function
By
Socheatra Soeung,

    Dr. Socheatra Soeung

    Department of Electrical and Electronic Engineering

    Universiti Teknologi PETRONAS

    Malaysia

    Homepage

Peng Wen Wong,

    Dr. Peng Wen Wong

    Department of Electrical and Electronic Engineering

    Universiti Teknologi PETRONAS

    Malaysia

    Homepage

Sovuthy Cheab

    Dr. Sovuthy Cheab

    Cambodia Academy of Digital Technology

    Cambodia

    Homepage

Progress In Electromagnetics Research Letters, Vol. 66, 15-23, 2017
doi:10.2528/PIERL16112902 | Google Scholar

Abstract
This paper demonstrates a new class of highly selective bandstop filter based on cascading two identical lossy hybrid dual-band bandstop filters of low resonator Q factor. Each filter is synthesized based on multi-stage predistortion reflection mode technique. To demonstrate the approach, 4th order hybrid dual-band elliptic filter network which is a product of elliptic lowpass and highpass network functions has been predistorted and synthesized with low calculated Q factor. The lossy dual-band bandstop filters are fabricated and realized on microstrip planar structure. Both theoretical and experimental results clearly show good agreements with two stopband rejections up to 35 dB for one stage and 50 dB for two stages with passband loss of more than 10 dB.
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Citation
Socheatra Soeung, Peng Wen Wong, and Sovuthy Cheab, "Highly Selective Lossy Dual-Band Bandstop Filter Synthesis and Design Based on Predistortion Hybrid Dual-Band Elliptic Refection Function," Progress In Electromagnetics Research Letters, Vol. 66, 15-23, 2017.
doi:10.2528/PIERL16112902
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