A novel ultra-wideband differential filter based on double-sided parallel-strip line

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Xiao-Hua Wang
  • Quan Xue
  • Wai-Wa Choi

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)471-473
Journal / PublicationIEEE Microwave and Wireless Components Letters
Volume20
Issue number8
Online published7 Jun 2010
Publication statusPublished - Aug 2010

Abstract

In this letter, double-sided parallel-strip line (DSPSL) has been used to build a novel differential filter with ultra- wideband (UWB) response. Swap structures, based on DSPSL, are employed in the design to realize 180° phase shift. So the swap structures can realize the conversion between differential- and common-mode. Utilizing the characteristic, the input common- mode signals will be cancelled at the center of the filter, while the input differential-mode signals can propagate in the proposed filter. The proposed new differential filter was calculated in analytical method, and was simulated by the full-wave electromagnetic simulator, and was validated by the measurement. The last results show they have a good in-band and out-band performance. With fractional bandwidth of 110% centered at 3 GHz, the differential-mode signals can propagate with UWB frequency response, while the common-mode signals are suppressed below -20 dB in the whole frequency band. © 2010 IEEE.

Research Area(s)

  • differential filter, Differential-/common-mode, double-sided parallel-strip line (DSPSL), noise suppression, ultra-wideband (UWB) filter

Citation Format(s)

A novel ultra-wideband differential filter based on double-sided parallel-strip line. / Wang, Xiao-Hua; Xue, Quan; Choi, Wai-Wa.
In: IEEE Microwave and Wireless Components Letters, Vol. 20, No. 8, 08.2010, p. 471-473.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review