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Published March 1981 | Published
Journal Article Open

Impedance Transformations For The Generalized Reflection Modulator


A procedure is given for obtaining the impedance transformer which will produce a prescribed pair of phasor reflection coefficients by transformation from a given pair of impedance states terminating the transformer. The transformer may be used in a general two-state reflection modulator: as a phase shifter with phase change at constant amplitude or as an amplitude modulator with level shift at constant or variable phase. The condition governing the reflection coefficients available from a given pair of impedance states is given. Examples and limitations are discussed.

Additional Information

© 1981 IEEE. Manuscript. received September 18, 1980; revised October 29, 1980. This work was sponsored by the Department of the Army. The views and conclusions in this document are those of the contractor and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the United States Government. Acknowledgment is owed to Dr. D. H. Steinbrecher for introduction to the concept of the use of impedance transformation for the predetermination of reflection characteristics in switching. M. L. Smith is thanked for discussions of the analytical aspects of the derivation.

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