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 May 21, 2025)
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Wafer Probe Transducer Efficiency
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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
Pub Type
Journals
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Created October 1, 1992, Updated November 10, 2018