A compact planar power combiner with complex impedance matching

Te Chuan Chen, Xiaoju Yu, Hao Xin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This article presents a compact power combiner/divider for solid-state amplifier applications inspired by spatial combiner. The proposed "one-stage" combining structure is realized by a single port tapered to an oversized microstrip connecting to parallel multiport microstrip sections. By adjusting the geometries of the structure, uniform amplitude/phase, and complex impedance matching at the multiport outputs can be achieved. A prototype 1-to-4 divider/combiner is designed and characterized at 5 GHz. Measured and simulated results showed similar trend and decent agreement. The measured combining efficiency of the circuit is 82.44% at 5 GHz.

Original languageEnglish (US)
Pages (from-to)1121-1125
Number of pages5
JournalMicrowave and Optical Technology Letters
Issue number5
StatePublished - May 1 2016


  • combiner
  • complex matching
  • microstrip
  • power divider

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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