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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-11-20
Compact Microstrip BPF with High Selectivity Using Extended Tapped Lines
By
Yi-Qiang Gao,

    Dr. Yi-Qiang Gao

    Shanghai Institute of Microsystem and Information Technology

    China

    Homepage

Wei Shen,

    Dr. Wei Shen

    Shanghai Aerospace Institute of Electronic Technology

    China

    Homepage

Liang Wu,

    Dr. Liang Wu

    Shanghai Institute of Microsystem and Information Technology

    Chinese Academy of Science

    China

    Homepage

Xiao-Wei Sun

    Dr. Xiao-Wei Sun

    Key Laboratory of Terahertz Solid-State Technology

    Shanghai Institute of Microsystem and Information Technology

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 80, 39-46, 2018
doi:10.2528/PIERL18081303 | Google Scholar

Abstract
This paper proposes a compact microstrip bandpass filter (BPF) with high selectivity. A folded stepped-impedance resonator (SIR) of which the high impedance part is realized by a coplanar waveguide on the ground layer is introduced to the filter design for miniaturization. Furthermore, source-load coupling is implemented by extended tapped lines (ETLs). High selectivity with four transmission zeros (TZs) can be achieved. The analysis of the filter is presented based on atransmission line circuit model and even- and odd-mode analysis method. An experimental filter with the size of 0.15λg*0.13λg (where λg is the guide wave-length at the center frequency) is designed to validate our methods.
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Citation
Yi-Qiang Gao, Wei Shen, Liang Wu, and Xiao-Wei Sun, "Compact Microstrip BPF with High Selectivity Using Extended Tapped Lines," Progress In Electromagnetics Research Letters, Vol. 80, 39-46, 2018.
doi:10.2528/PIERL18081303
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