Miniature ultra-wideband power divider using bridged T-coils

Yo Shen Lin, Jun Hua Lee

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


In this work, a miniature ultra-wideband (UWB) power divider (PD) is proposed. By implementing the transmission lines of a two-stage Wilkinson PD using bridged T-coils, very compact size with no reduction in bandwidth can be achieved. Specifically, a proposed UWB two-way PD with a center frequency f 0=5.5 GHz is implemented using the commercial GaAs pHEMT process. The circuit size without pads is only 1.45 mm × 0.84 mm, which is about 0.027 λ 0 × 0.016 λ 0 at f 0. The fractional bandwidth for 15-dB input/output return loss and isolation is 110%, and the in-band insertion loss is within 1.3 ± 0.36 dB.

Original languageEnglish
Article number6232473
Pages (from-to)391-393
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number8
StatePublished - 2012


  • (PD)
  • Bridged T coil
  • GaAs
  • lumped-element
  • p.d
  • power divider
  • ultra-wideband (UWB)


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