Antenna measurement system using bi-directional optical fiber link system

We propose an antenna measurement system using the bi-directional type optical fiber link transceivers with the directional couplers. Our proposed system can measure the reflection signal and transmitting signal of the antenna after full-2-port calibration of vector network analyzer. In this paper, we show the frequency response of bi-directional type optical fiber link transceiver. Dynamic range of our proposed system is more than 50 dB in the frequency range from 10 MHz to 1000 MHz. Further, we show the antenna reflection coefficient and transmitting measurement results using our proposed system.