关键词: 氮化铝陶瓷, 射频信号拖尾, 收发组件, 氧化铝陶瓷

Abstract: Based on the application background of transceiver module, it is found that RF circuits based on aluminum nitride (AlN) ceramic substrates cause RF signal tailing, and the RF signal tailing time directly affects the limited amplitude recovery time of the receiving channel, thereby seriously affecting the receiving sensitivity of the transceiver system. It is found that AlN ceramics are piezoelectric semiconductor materials that generate piezoelectric effect during RF signal transmission, leading to RF signal tailing. The higher the transmission power, the stronger the piezoelectric effect and the longer the RF signal tailing time. The research results have important theoretical guidance significance and engineering application value for the selection of high-power transceiver module circuit substrates, especially in radar application fields such as high-precision height measurement and ultra-close range measurement.

Key words: aluminum nitride ceramics, RF signal trailing, transceiver module, aluminum oxide ceramics