W-Band Dual Channel AM/PM Noise Measurement System — An Update

A. Hati, C.W. Nelson, J.F. Garcia Nava, D.A. Howe, F.L. Walls, H. Ascarrunz, J. Lanfranchi, B. Riddle

Abstract:	We discuss the performance of a W-band (92-96) GHz amplitude modulated (AM) and phase modulated (PM) noise measurement system. The system uses two nearly identical channels to measure the residual noise in amplifiers in pulsed mode with a duty cycle of 10 % to 100 % (CW) at a given pulse repetition frequency (PRF). We describe details of the dual-channel measurement test set system and several design considerations that are essential for accurately extracting the device noise from measurement-system noise. We also discuss the modifications made to the synthesis scheme of the (92-96) GHz signal compared to the previous scheme. Finally, we present updated results for the source noise and the noise floor of the measurement system.
Published in:	Proceedings of the 37th Annual Precise Time and Time Interval Systems and Applications Meeting August 29 - 31, 2005 Vancouver, Canada
Pages:	503 - 508
Cite this article:	Hati, A., Nelson, C.W., Nava, J.F. Garcia, Howe, D.A., Walls, F.L., Ascarrunz, H., Lanfranchi, J., Riddle, B., "W-Band Dual Channel AM/PM Noise Measurement System — An Update," Proceedings of the 37th Annual Precise Time and Time Interval Systems and Applications Meeting, Vancouver, Canada, August 2005, pp. 503-508.
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