Novel broadband bandpass filters using Y-shaped dual-mode microstrip resonators

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

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Author(s)

  • Kaijun Song
  • Quan Xue

Detail(s)

Original languageEnglish
Article number5200447
Pages (from-to)548-550
Journal / PublicationIEEE Microwave and Wireless Components Letters
Volume19
Issue number9
Publication statusPublished - Sept 2009

Abstract

A Y-shaped dual-mode microstrip bandpass filter (BPF) with input-output cross-coupling is presented. The characteristic of the Y-shaped dual-mode resonator has been investigated. The resonance frequencies of the degenerate modes can be adjusted easily to satisfy the bandwidth of the BPF. A parallel-coupling feed structure with a cross coupling has been used to generate two transmission zeros at the lower and upper stopband, which can improve the out-of-band performance. A broadband dual-mode microstrip BPF has been designed, fabricated, and measured. The simulated and measured results are in agreement generally. Within the 3.1 to 5.4 GHz bandwidth, the measured insertion loss, return loss and group delay variation are below 0.5 dB, above 15 dB, and below 0.2 ns, respectively. © 2006 IEEE.

Research Area(s)

  • Bandpass filter (BPF), Broadband, Dual mode, Microstrip, Y-shaped resonator

Citation Format(s)

Novel broadband bandpass filters using Y-shaped dual-mode microstrip resonators. / Song, Kaijun; Xue, Quan.
In: IEEE Microwave and Wireless Components Letters, Vol. 19, No. 9, 5200447, 09.2009, p. 548-550.

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