A 15 element focal plane array for 100 GHz
IEEE Transactions on Microwave Theory and Techniques1992Vol. 40(1), pp. 1–11
Citations Over TimeTop 10% of 1992 papers
N. R. Erickson, P. F. Goldsmith, Giles Novak, R. M. Grosslein, P. J. Viscuso, R.B. Erickson, C. R. Predmore
Abstract
A focal plane imaging array receiver is described which covers the 86-115 GHz frequency range for radio astronomical observations. The 3*5 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.>
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