Novel Low-Pass Microwave Filter Based on Rectangular Ring DGS

Bao Ping Li; Yan Liang Zhang

doi:10.4028/www.scientific.net/AMM.273.371

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 273Novel Low-Pass Microwave Filter Based on...

Novel Low-Pass Microwave Filter Based on Rectangular Ring DGS

Abstract:

Due to the frequency response periodicity of distributed transmission line, microstrip band-pass filter usually produces parasitic pass-band and outputs harmonics away from the center frequency of main pass-band. Based on the study of rectangular ring defected ground structure, a 5-order microstrip LPF(low-pass filter) was designed using the single-pole band-stop and slow-wave characteristics of the rectangular ring DGS(Defected Ground Structure) and SISS(Step-Impedance Shunt Stub) structure. Compared with traditional LPF, this LPF presents the advantages of compact size, low insertion loss, broad stop-band and high steep. It also validates the requirements of miniaturization and high performance for filters.

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Periodical:

Applied Mechanics and Materials (Volume 273)

Pages:

371-374

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.273.371

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Online since:

January 2013

Authors:

Bao Ping Li, Yan Liang Zhang

Keywords:

Defected Ground Structure, Low-Pass Filter, Rectangular Ring, Step-Impedance Shunt Stub

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