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Design of the Microwave Frequency Measurement System Based on Six-Port Device
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Design of the Microwave Frequency Measurement System Based on Six-Port Device
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Journal Article
Design of the Microwave Frequency Measurement System Based on Six-Port Device
2025
Overview
According to the requirement of microwave frequency measurement, a microwave frequency measurement system is designed based on six-port device. The system includes a microwave power divider, delay lines, a microwave phase discriminator, detectors, a signal source, a oscilloscope and so on. The microwave phase discriminator is realized by six-port circuit. The determination method of delay line length is explained, the phase calculation method of six–port phase discriminator is deduced, and the relationship between frequency, phase difference and delay line is given. According to the method, a microwave frequency measurement system is built to measure the sine wave signal with frequency of 2GHz to 8GHz. The best relative error of the measurement is 1.9×10 −3 . The results show that the six-port device can be applied to the microwave frequency measurement system. In the future, the research on wide-band and high accuracy frequency measurement technology will be further carried out.
Publisher
IOP Publishing
