A miniaturized 3 dB 90° hybrid coupler using coupled-line section with spurious rejection

Jikwon Kim, Jong Gwan Yook

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19 Citations (Scopus)


In this letter, a novel miniaturization method for 3 dB 90° hybrid coupler is proposed. The proposed structure is composed of a conventional structure with a coupled line section inserted in the low impedance section. The proposed coupler occupies an area of only 9.6% compared to a conventional branch-line coupler, and reveals comparable S-parameter characteristics in the operation band. Furthermore, the proposed structure demonstrates a harmonic suppression property due to the a periodicity at odd order harmonics.

Original languageEnglish
Article number6908036
Pages (from-to)766-768
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number11
Publication statusPublished - 2014 Nov 1


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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