Measurement of Amplitude and Phase Differences Between Two RF Signals by Using Signal Power Detection
Author:
- 15 January 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Wireless Components Letters
- Vol. 24 (3) , 206-208
Abstract
This letter proposes a method for measuring the amplitude and phase differences between two RF signals at the same frequency. It uses power combining components and a signal power detector. The differences are calculated from the proposed equations using the power measurements of each signal and the combined signal. The method is demonstrated at 10 MHz and 5 GHz frequencies. The maximum errors in the GHz-band are 3.6% in the amplitude and 4.5 ° in the phase, and the standard deviations in the measurement are 1.94% in the amplitude and 2.16 ° in the phase.Keywords
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