W-band dual channel PM/AM noise measurement system

Published

August 23, 2004

Author(s)

Archita Hati, Craig Nelson, J Nava, David A. Howe, Fred L. Walls

Abstract

We discuss the performance of a W-band (92 to 96 GHz) PM and AM noise measurement system. The system uses two nearly identical channels to measure the AM or P M noise added by an amplifier or any passive component. It is principally designed to measure amplifiers in pulsed mode with a duty cycle of 5 % to 100 % (CW) at a given pulse repetition frequency. The system is calibrated using a single sideband (SSB) modulator. We describe the details of the dual-channel measurement test set and several design considerations that are essential for accurately extracting device noise from measurement-system noise. Data are presented for the noise of reference oscillator as well as for the measurement system¿s noise floor.

Proceedings Title

IEEE Intl. Freq. Cont. Symp. and UFFC Conf., Proc. Joint Mtg.

Conference Dates

August 24-27, 2004

Conference Location

, USA

Conference Title

Joint Mtg. IEEE Intl. Freq. Cont. Symp. and UFFC Conf.

Pub Type

Conferences

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Keywords

AM noise, GaAs multiplier, harmonic mixer, PM noise, single sideband modulator, varactor-tuned Gunn oscillator, W-band

Citation

Hati, A. , Nelson, C. , Nava, J. , Howe, D. and Walls, F. (2004), W-band dual channel PM/AM noise measurement system, IEEE Intl. Freq. Cont. Symp. and UFFC Conf., Proc. Joint Mtg., , USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50163 (Accessed October 16, 2025)