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Stability of grid amplifiers

Liu, Cheh-Ming and De Lisio, Michael P. and Moussessian, Alina and Rutledge, David B. (1998) Stability of grid amplifiers. IEEE Transactions on Microwave Theory and Techniques, 46 (6). pp. 769-774. ISSN 0018-9480. http://resolver.caltech.edu/CaltechAUTHORS:LIUieeemtt98

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Abstract

We present a stability model for quasi-optical grid amplifiers. This model is useful for predicting and suppressing the common-mode oscillations that often occur in amplifier grids. Three stabilization techniques will be discussed. The first technique uses a capacitor to stabilize the grid. The second approach employs resistance to suppress the oscillations. The final technique stabilizes the grid by reducing the on-chip common-mode resistance, allowing greatly increased amplifier efficiencies. Experimental evidence will be presented to confirm the validity of our stability model.


Item Type:Article
Additional Information:© Copyright 1998 IEEE. Reprinted with permission. Manuscript received November 11, 1997; revised March 4, 1998. This work was supported by the U.S. Air Force Material Command/Rome Laboratory and by the U.S. Army Research Office under a MURI Grant to Caltech. The authors would like to thank E.A. Sovero of Rockwell Science Center, Thousand Oaks, CA, S.W. Duncan of Lockheed Martin, Nashua, NH, and R.P. Smith of NASA Jet Propulsion Laboratory, Pasadena, CA. The authors are also grateful to J.J. Rosenberg of Harvey Mudd College, Claremont, CA, for many insightful discussions.
Subject Keywords:Grid amplifiers, quasi-optics, stability
Record Number:CaltechAUTHORS:LIUieeemtt98
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:LIUieeemtt98
Alternative URL:http://dx.doi.org/10.1109/22.681199
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5903
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:08 Nov 2006
Last Modified:26 Dec 2012 09:16

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