A novel evaluation method for semi-anechoic chamber using zero biased optical devices and time-domain analysis

We propose an optical fiber link electromagnetic interference measurement system that consists of a transmitting optical fiber link module, a receiving optical fiber link module, and a vector network analyzer. Using our proposed optical system, we can measure S₂₁ (ω) and calculate S₂₁ (t) for the radiated electromagnetic interference measurement. We show experimental results of S_21S between a small biconical antenna with a comb generator box and a log-periodic antenna or a biconical antenna measured by our proposed optical link system. It is proved that our proposed optical system can be used to evaluate the radiated electromagnetic interference measurement. At first, we explain our optical fiber link system. Then, we explain the experimental results of S_21S between a small biconical antenna with a comb generator box that simulate a conventional comb generator system, and a log-periodic antenna or a biconical antenna. To validate the performance of our optical fiber link system, we compare the measurement results by our optical fiber link system with those by a conventional coaxial cable system and a comb generator system with a small biconical antenna.