Asymmetric dual-line coupling strip for multiple notched bands : Theory and implementation

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

8 Scopus Citations
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Author(s)

  • Kaijun Song
  • Tao Pan
  • Quan Xue

Detail(s)

Original languageEnglish
Pages (from-to)416-422
Journal / PublicationMicroelectronics Journal
Volume43
Issue number6
Publication statusPublished - Jun 2012

Abstract

An asymmetric dual-line coupling strip (ADLCS) can provide main two paths for the signals, which make it possible to generate multiple transmission zeroes. The detailed analysis of the ADLCS is proposed in this paper. Based on the microwave network theory, the equivalent circuit of the ADLCS is also developed. Moreover, the structural parameters of ADLCS are studied by calculations and simulations. The center frequencies and bandwidths of the notch bands can be controlled by tuning the structural parameters. Obviously, The ADLCS can be used in the ultra-wideband (UWB) bandpass filter (BPF) to generate multiple notch bands within the passband. To demonstrate the performance of the ADLCS with UWB filter, the structure is applied to the input and output (I/O) of the single-stage UWB Y-shaped BPFs. The proposed UWB Y-shaped BPF has been designed, fabricated, and measured. The measured results agree with the predicted ones closely. The two notch bands of the fabricated UWB Y-shaped BPF centered at 4.5 and 8.1 GHz have 10-dB rejection fractional bandwidths of about 5.6% and 5%, respectively. © 2012 Published by Elsevier Ltd. All rights reserved.

Research Area(s)

  • Asymmetric dual-line coupling strip (ADLCS), Bandpass filter, Equivalent circuit, Multiple notch bands, Ultra-wideband (UWB), Y-shaped

Citation Format(s)

Asymmetric dual-line coupling strip for multiple notched bands: Theory and implementation. / Song, Kaijun; Pan, Tao; Xue, Quan.
In: Microelectronics Journal, Vol. 43, No. 6, 06.2012, p. 416-422.

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