Optics design for a millimeter‐wave phase‐imaging system and its application to plasma diagnostics

Kazuhiro Uehara, Takeshi Yonekura, Hiroshi Nishimura, Kazuhito Miyashita, Koji Mizuno

Research output: Contribution to journalArticle

Abstract

A ten‐element imaging array which consists of an integrated antenna‐detector system that incorporates trap‐loaded Yagi antennas and Schottky diodes has been developed for operation in the millimeter‐wave band around 70 GHz. Also, a prototype optical system that comprises a millimeter‐wave phase‐imaging interferometer has been designed and fabricated. They were fitted to the GAMMA 10 tandem mirror at Tsukuba University. A real‐time measurement of the radial distribution of the plasma electron density was successfully demonstrated using those systems.

Original languageEnglish
Pages (from-to)103-112
Number of pages10
JournalElectronics and Communications in Japan (Part I: Communications)
Volume76
Issue number12
DOIs
Publication statusPublished - 1993
Externally publishedYes

Keywords

  • Millimeter wave
  • Yagi antenna
  • imaging
  • plasma diagnostics

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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