LI Qing-liang, SHAO Qing-long. Novel passive communication system for referee based on surface acoustic wave technology[J]. 2010, 29(12): 79-81. DOI: 10.13873/j.1000-97872010.12.015.
A passive wireless communication system for referee based on surface acoustic wave(SAW) is presented.The principle is transceiver taken by referee emits RF pulse.Wireless reflector handed by lineman receives the RF pulse and reflects RF pulses that modulated by switch.It’s because different impedance results in different reflectivity.The merits of this system is real passive and wireless
can be used in harsh environment.The experiment validated the system can communicate accurately.