NEW U-SHAPED DGS BANDSTOP FILTERS | Zendy

JianKang Xiao | Zendy; Yu-Feng Zhu | Zendy

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NEW U-SHAPED DGS BANDSTOP FILTERS

Author(s) -

JianKang Xiao,

Yu-Feng Zhu

Publication year - 2011

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.884

H-Index - 38

ISSN - 1937-8718

DOI - 10.2528/pierc11091805

Subject(s) - band stop filter , electrical engineering , engineering , filter (signal processing) , low pass filter

In this paper, new microstrip bandstop filters with single band, dual-band and tri-band by using U-shaped defected ground structures are presented without the assistance of coupled lines or certain resonators, and the application of DGS is developed. The proposed bandstop filters have good performances of low loss, multi-band operation, transmission zeros which improve the filter frequency selectivity, and miniaturization because of the cascade of DGS and minimum defected patterns which reduce the circuit size. The new designs are demonstrated by measurement.

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