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Proceedings Paper

Terahertz Schottky-diode balanced mixers
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Paper Abstract

We report on the first THz balanced mixer/upconverter using a Schottky diode MMIC chip. Using an optically pumped laser at 1562 GHz as an LO source with a coupled power of about 1 mW, and 1 mW input at an IF frequency of 10 GHz, we obtained a sideband output power of 23 uW (sum of two sidebands). As a mixer, at an LO of 1621 GHz, we obtain a conversion loss of 12.4 dB DSB and a noise temperature of 5600 K DSB. Response is believed to be similar over a band 1250-1650 GHz. New diodes have been designed for easier application as mixers up through 3 THz, and a new wafer run is in process.

Paper Details

Date Published: 9 February 2009
PDF: 5 pages
Proc. SPIE 7215, Terahertz Technology and Applications II, 721508 (9 February 2009); doi: 10.1117/12.807505
Show Author Affiliations
Neal R. Erickson, Univ. of Massachusetts Amherst (United States)
Thomas M. Goyette, Univ. of Massachusetts Lowell (United States)

Published in SPIE Proceedings Vol. 7215:
Terahertz Technology and Applications II
Kurt J. Linden; Laurence P. Sadwick; Créidhe M. O'Sullivan, Editor(s)

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