Pseudo surface acoustic wave two-port synchronous resonator on (-74(degree))YX cut quartz

A pseudo surface acoustic wave (PSAW) two-port synchronous resonator on (-74(degree))YX cut quartz was designed, fabricated and measured. It was found that for the proper resonator structure at a frequency of 163.3 MHz, insertion loss changes were below 1 dB in the temperature range from -20 to 80(degree)C, and the temperature stability of frequency is about five times better than that of the ST cut.