A 15 Element Focal Plane Array for 100 GHz

Neal R. Erickson, Paul F. Goldsmith, G. Novak, Ronald M. Grosslein, P. J. Viscuso, Ronna B. Erickson, C. Read Predmore

Research output: Contribution to journalArticlepeer-review

87 Scopus citations


A focal plane imaging array receiver is described which covers the 86–115 GHz frequency range for radio astronomical observations. The 3x5 element array uses cryogenic Schottky diode mixers with integrated HEMT IF amplifiers. A cold quasi-optical filter selects the desired sideband, and terminates the image at 20 K. Polarization interleaving is used to minimize the array size on the sky. LO power is provided by a frequency tripled YIG tuned oscillator. The average receiver noise temperature of the array pixels varies from 250–350 K SSB depending on the frequency. Only three mechanical tuners are used in the system and all functions are under computer control.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number1
StatePublished - Jan 1992

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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