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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2019-09-02
Miniaturized Microstrip Lowpass Filter with Ultra-Wide Stopband Performance Using Trapezoid Patch Resonators
By
Bing Xie,

    Dr. Bing Xie

    University of Shaoyang

    China

    Homepage

Hongbin Yu

    Dr. Hongbin Yu

    Henan Vocational College of Light Industry

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 87, 39-43, 2019
doi:10.2528/PIERL19062606 | Google Scholar

Abstract
A new miniaturized microstrip lowpass filter with ultra-wide stopband performance using trapezoid patch resonators is investigated. To achieve compact design and ultra-wide band rejection, trapezoid patch resonators are employed in the filter. To further reduce the circuit size of the filter, a meander transmission line is also introduced in the design. A demonstration filter with 3 dB cutoff frequency at 0.50 GHz has been designed, fabricated, and measured. Results indicate that the proposed filter is able to suppress the 26th harmonic response referred to a suppression degree of 15 dB. Furthermore, the proposed filter exhibits a small size of 0.122λg×0.109λg, where λg is the guided wavelength at 0.50 GHz.
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Citation
Bing Xie, and Hongbin Yu, "Miniaturized Microstrip Lowpass Filter with Ultra-Wide Stopband Performance Using Trapezoid Patch Resonators," Progress In Electromagnetics Research Letters, Vol. 87, 39-43, 2019.
doi:10.2528/PIERL19062606
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