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9 February 2009 Terahertz Schottky-diode balanced mixers
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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.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Neal R. Erickson and Thomas M. Goyette "Terahertz Schottky-diode balanced mixers", Proc. SPIE 7215, Terahertz Technology and Applications II, 721508 (9 February 2009); https://doi.org/10.1117/12.807505
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