Wave-front adaptive control structure (WACS) for quasi-optical power amplifiers in intelligent RF front-ends

Hao Xin, J. B. Hacker, A. Sailer, G. Nagy, J. A. Higgins, D. Pilz, M. J. Rosker

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Tunable electromagnetic crystal (EMXT) surfaces are used as rectangular waveguide sidewalls to provide uniform excitation for quasi-optical power amplifiers. InP hetero-barrier varactors are monolithically integrated into periodic metal-dielectric structures to realize a reconfigurable EMXT surface that has a tunable resonance frequency from 30 to 45 GHz. Real-time reconfigurable (30-40 GHz) and low-loss quasi-TEM wave-front control with only 2-mm long EMXT waveguide section is demonstrated. Experimental results are in good agreement with design simulations. Such waveguides can be readily integrated into an intelligent RF front-end with self-assessment and self-adjustment capabilities.

Original languageEnglish (US)
Pages (from-to)404-406
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume14
Issue number9
DOIs
StatePublished - Sep 1 2004
Externally publishedYes

Keywords

  • Electromagnetic crystal (EMXT) surfaces
  • Hetero-barrier varactors (HBV)
  • Transverse electromagnetic (TEM)

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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