Accurate synchronization method of 38-GHz 5G channel measurement system

An accurate synchronization method for 5G channel measurement is proposed. This method provides stable and accurate (<; 1 ns error) synchronized trigger signal to the transmitter and the receiver. Because this method does not need a long cable to provide the synchronized trigger signal, the setup for channel measurement is easy. A verification of a channel in a simple environment is measured. By comparing the 38 GHz measured power delay profile, this proposed method can provide smaller trigger error than the conventional method with a trigger signal transmitted by a long cable.