Miniaturized rat race coupler with suppression of spurious passband

  • Jen Tsai Kuo*
  • , Juo Shiuan Wu
  • , Yi Chyun Chiou
  • *Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

131 Scopus citations

Abstract

A new hybrid ring coupler design is devised for circuit miniaturization based on the periodic stepped-impedance ring resonator structure. The circuit has an area of 21.5% of a conventional rat race coupler and no passband up to the sixth harmonic of the design frequency. The designs are validated by comparing measured four-port parameters with the simulated results.

Original languageEnglish
Pages (from-to)46-48
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume17
Issue number1
DOIs
StatePublished - 01 2007
Externally publishedYes

Keywords

  • Directional coupler
  • Miniaturization
  • Rat race
  • Ring hybrid
  • Stepped-impedance

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