Compact LTCC bandpass filter with wide stopband using discriminating coupling

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

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Author(s)

  • Xiu Yin Zhang
  • Xin Dai
  • Hsuan-Ling Kao
  • Bai-Hong Wei
  • Ze Yu Cai
  • And 1 others
  • Quan Xue

Detail(s)

Original languageEnglish
Article number6717183
Pages (from-to)656-663
Journal / PublicationIEEE Transactions on Components, Packaging and Manufacturing Technology
Volume4
Issue number4
Publication statusPublished - Apr 2014

Abstract

This paper presents a novel compact low-temperature cofired ceramic (LTCC) bandpass filter (BPF) with wide stopband and high selectivity. The proposed circuit consists of two coupled \lambda-{g}/4 transmission-line resonators. A special coupling region is selected to realize a novel discriminating coupling scheme for generating a transmission zero (TZ) at the third harmonic frequency. The mechanism is analyzed and the design guideline is described. The source-load coupling is introduced to generate two TZs near the passband and one in the stopband. Thus, wide stopband can be obtained without extra circuits. Due to the LTCC multilayer structures, the filter size is 0.058~\lambda-{g}\times 0.058~\lambda-{g}\times 0.011~\lambdag, or 2.63 mm ×,2.61 mm ×,0.5 mm. The simulated and measured results of the demonstrated LTCC BPF are presented to validate the proposed design. © 2011-2012 IEEE.

Research Area(s)

  • Bandpass filter (BPF), discriminating coupling, low-temperature cofired ceramic (LTCC), miniaturization, source-load (S-L) coupling, wide stopband

Citation Format(s)

Compact LTCC bandpass filter with wide stopband using discriminating coupling. / Zhang, Xiu Yin; Dai, Xin; Kao, Hsuan-Ling et al.
In: IEEE Transactions on Components, Packaging and Manufacturing Technology, Vol. 4, No. 4, 6717183, 04.2014, p. 656-663.

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