Feed-forward technique to measure the reflection coefficient under CW high-power signals
PublisherIEEE Microwave Theory and Techniques Society
Rights accessOpen Access
This paper describes a measurement setup to obtain the reflection coefficient response over the frequency of a given device when this is subjected to a single-tone high-power (HP) signal. The proposed system is based on a feed-forward technique to cancel the reflected HP signal before reaching the vector network analyzer. This allows measuring the effects of the HP interfering signal into the device's low-power frequency response. This technique does not require either power-calibrated standards or complex calibration techniques. Experiments in several devices are also reported to validate the suitability of this technique.
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CitationCollado, J., Gonzalez-Rodriguez, M., Gonzalez, J., Mateu, J., Verdu, J., Hueltes, A. Feed-forward technique to measure the reflection coefficient under CW high-power signals. "IEEE transactions on microwave theory and techniques", 1 Octubre 2018, vol. 66, núm. 10, p. 4627-4633.