A power efficient active integrated antenna

Joungyoung Lee, Chung Tse Michael Wu, Tatsuo Itoh

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


We have integrated a microwave oscillator with a zeroth-order resonance antenna to build an active oscillating antenna using the coplanar waveguide technology. In this design, the antenna is electrically small and the oscillator has an excellent phase noise performance of 92.5 dBc/Hz. Also, 16.11 dBm (40.83 mW) of effective isotropic radiated power is radiated with high direct current to radio frequency efficiency (27.2%), which is much higher than many other active oscillating antenna designs.

Original languageEnglish (US)
Pages (from-to)1240-1243
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number6
StatePublished - Jun 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


  • active antenna
  • active integrated antenna
  • antenna
  • zeroth-order antenna


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