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Wafer Probe Transducer Efficiency

Published

Author(s)

Dylan F. Williams, Roger Marks, Dave K. Walker, Fred R. Clague

Abstract

Experimental evidence is presented that shows the conventional expression relating the transducer efficiency of a two-port to measured scattering parameters is incorrect when the characteristic impedance at one of the ports is complex. This evidence is based on the measurement of the power from a microwave source transferred through a probe to a lossy coplanar waveguide. The conventional expression differs from the measurement by up to 20%. An alternative expression, accounting for the complex characteristic impedance, gives accurate results.
Citation
IEEE Microwave and Guided Wave Letters
Volume
2
Issue
10

Citation

Williams, D. , Marks, R. , Walker, D. and Clague, F. (1992), Wafer Probe Transducer Efficiency, IEEE Microwave and Guided Wave Letters, [online], https://doi.org/10.1109/75.160116 (Accessed June 23, 2024)

Issues

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Created October 1, 1992, Updated November 10, 2018