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Measurement of antennas and microwave components using time-domain reflectometry of a voltage impulse
Abstract
Band-pass microwave systems such as ultra-wideband antennas are traditionally characterized in the frequency-domain through a vector network analyzer in an anechoic chamber. A recent study proved antennas could be accurately measured in the time-domain using a step-function time-domain reflectometer (TDR), without the need for an anechoic chamber. We propose a new advance in the TDR characterization method. An impulse generator is employed in place of the step generator in a TDR set-up. The advantage conferred by this change is that more energy is available beyond a given frequency than with a step, and so a higher signal-to-noise ratio is achieved. The theoretical result is compared with measurement.
Type
Journal Article
Type of thesis
Series
Citation
McCabe, S. & Scott, J. (2011). Measurement of antennas and microwave components using time-domain reflectometry of a voltage impulse. IEEE Microwave and Wireless Components Letters, (99), 1-1.
Date
2011
Publisher
IEEE
Degree
Supervisors
Rights
©2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.