Sideband Noise Screening of Multiplier-Based Sub-Millimeter LO Chains using a WR-10 Schottky Mixer

Details Sideband Noise Screening of Multiplier-Based Sub-Millimeter LO Chains using a WR-10 Schottky Mixer Sideband Noise Screening of Multiplier-Based Sub-Millimeter LO Chains using a WR-10 Schottky Mixer

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008stt..conf..499b&link_type=abstract

Proceedings of the Ninteenth International Symposium on Space Terahertz Technology, held April 28-30, 2008, in Groningen. Edited

Computer Science

Scientific paper

A method is presented for measuring the AM noise of signal sources as a function of frequency offset from the carrier. This method is particularly helpful for local oscillator sources for sub-millimeter wave single-ended mixers with wide IF bandwidths. Measurements on ALMA LO sources are presented using the described tests. The measurements are compared to receiver noise measurements using a SIS mixer. Close agreement is seen, indicating that these measurements can be used to predict added noise of sub-millimeter wave local oscillators for SIS mixers with room temperature millimeterwave measurements.

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