Abstract
We have already propose a microwave measurement system using a bi-directional type optical fiber link transceiver. Our proposed system with a vector network analyzer can measure the reflection signal and transmitting signal of the microwave device after s-parameter calibration of the vector network analyzer. However, our previous proposed bi-directional type optical fiber link transceivers can measure s-parameters up to 1 GHz. For this reason, we newly develop a bi-directional type optical fiber link transceiver that can measure s-parameter up to 4GHz. In this paper, we show the frequency response of our newly proposed bi-directional type optical fiber link transceiver. Dynamic range of our proposed system is more than 70 dB in the frequency range from 20 MHz to 4 GHz. Further, we demonstrate the antenna measurement using our optical fiber link transceiver for a single antenna measurement of log-periodic dipole array antenna.
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