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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-08-27
Miniaturized Microstrip Lowpass Filter with Compact Size for Harmonic Suppression
By
Guan-Nan Chen,

    Dr. Guan-Nan Chen

    Student Affairs Department

    Baoji University of Arts and Sciences

    China

    Homepage

Jing-Bo Hu

    Dr. Jing-Bo Hu

    Department of Electronic Engineering

    City University of Hong Kong

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 78, 59-63, 2018
doi:10.2528/PIERL18070507 | Google Scholar

Abstract
A new miniaturized microstrip lowpass filter with compact size and a wide spurious-free stopband is investigated. To achieve compact design and ultra-wide band rejection, both triangular patch resonators and trapezoid patch resonators are introduced in the filter. To further reduce the circuit size of the filter, the meander transmission line is also adopted in the design. A demonstration filter with 3 dB cutoff frequency at 0.76 GHz has been designed, fabricated and measured. Results indicate that the proposed filter is able to suppress the 16th harmonic response referred to a suppression degree of 15 dB. Furthermore, the proposed filter exhibits a small size of 0.080λg×0.072λg, where λg is the guided wavelength at 0.76 GHz.
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Citation
Guan-Nan Chen, and Jing-Bo Hu, "Miniaturized Microstrip Lowpass Filter with Compact Size for Harmonic Suppression," Progress In Electromagnetics Research Letters, Vol. 78, 59-63, 2018.
doi:10.2528/PIERL18070507
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