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2014-08-25
Compact Wideband Differential Bandpass Filter Using a Marchand Balun
By
Progress In Electromagnetics Research C, Vol. 53, 67-73, 2014
Abstract
A novel compact wideband differential bandpass filter with wideband common mode suppression using a Marchand balun is presented in this paper. Open/shorted coupled lines and stubs are used to improve the selectivity for the differential mode and common mode suppression. The demonstrated filter with a compact size of 50 mm × 30 mm exhibits a fractional bandwidth of 53% centered at 3.0 GHz and 13 dB common-mode suppression from 0 to 9 GHz. The theoretical and measured results agree well with each other and show good in-band performances.
Citation
Shi Bai, Wenjie Feng, and Wenquan Che, "Compact Wideband Differential Bandpass Filter Using a Marchand Balun," Progress In Electromagnetics Research C, Vol. 53, 67-73, 2014.
doi:10.2528/PIERC14072405
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