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2012-10-24

Microstrip Wideband Bandpass Filter with Six Transmission Zeros Using Transversal Signal-Interaction Concepts

By Shujian Xue, Wenjie Feng, Haotian Zhu, and Wenquan Che
Progress In Electromagnetics Research C, Vol. 34, 1-12, 2013
doi:10.2528/PIERC12092814

Abstract

A high-selectivity microstrip wideband bandpass filter with six transmission zeros using transversal signal-interaction concepts is proposed. A fifth-order wide passband with six transmission zeros (0-2f0, f0 is center frequency of the passband) can be realized two transmission paths. The bandwidth and locations of the transmission zeros can be adjusted conveniently by changing the characteristic impedances of open stub and coupling coefficients of the open/shorted coupled lines. A prototype of planar wideband bandpass filter with 3 -dB fractional bandwidth 43.3% (2.33-3.63 GHz) is designed and fabricated. The measured and simulated results both indicate good performances of high selectivity and wideband harmonic suppression.

Citation


Shujian Xue, Wenjie Feng, Haotian Zhu, and Wenquan Che, "Microstrip Wideband Bandpass Filter with Six Transmission Zeros Using Transversal Signal-Interaction Concepts," Progress In Electromagnetics Research C, Vol. 34, 1-12, 2013.
doi:10.2528/PIERC12092814
http://jpier.org/PIERC/pier.php?paper=12092814

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