The microwave transceiver system is one of the core components of EPR (ESR) spectroscopy, which mainly includes microwave transmitter and microwave receiver. After years of technology accumulation, CIQTEK has accumulated rich experience in low-noise wave sources, microwave pulse generation technology, high-power pulse amplification technology, low-noise signal extraction technology, etc., which makes the microwave transceiver system of EPR (ESR) spectroscopy in the industry-leading level.