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Vector voltmeter applications in microwave imaging.
Microwave Journal
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November 1, 1991|
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COPYRIGHT 1991 Horizon House Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.
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Vector Voltmeter Applications in Microwave Imaging
Introduction
Measuring the amplitude and phase of a microwave signal with respect to a reference signal requires the use of a microwave vector voltmeter. Because it is not possible to place a probe without disturbing the signal, a set-up made of couplers based on the reflectometer principle may be used.
A vector voltmeter is a device that measures the complex voltage ratio of two input waves [a.sub.1] and [a.sub.2]. However, in microwave measurements, only power readings are available. In order to ...
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