A dual-band amplifier with flexible frequency ratios

Te Chuan Chen, Wei Hua, Kokou Gbele, Hualiang Zhang, Hao Xin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This article presents a dual-band amplifier with flexible frequency ratios. The amplifier features novel Wilkinson power divider/combiner with dual-band property that allows large frequency ratio (2.16-4.9) between its first and second operating bands. The measured combining efficiency on a stand-alone combiner is 97% at 2.25 GHz and 75% at 5.25 GHz. A 2.25/5.5 GHz prototype amplifier is tested to verify dual-band functionality. Measured linear gains are 12.85 dB and 12.07 dB at the first and second frequency bands, respectively.

Original languageEnglish (US)
Pages (from-to)2242-2247
Number of pages6
JournalMicrowave and Optical Technology Letters
Issue number10
StatePublished - Oct 1 2015


  • ABCD matrix
  • Wilkinson power divider
  • combiner
  • concurrent dual-band operation
  • dual-band amplifier

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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