Test method of frequency response based on diamond surface acoustic wave devices

• 作 者: 陈希明 杨保和 吴小国 吴佚卓
• 机 构: Tianjin Key Laboratory of Film Electronic and Communication Device,Tianjin University of Technology,
• 出 处: Optoelectronics Letters
• 发表日期: 2011年04期
• 关键词: diamond resonant bandwidth simulating instead Fabry exactly selectivity quickly

In order to reduce the noises affixed to the signals when testing high frequency devices,a single-port test mode(S11) is used to test frequency response of high frequency(GHz) and dual-port surface acoustic wave devices(SAWDs) in this paper.The feasibility of the test is proved by simulating the Fabry-perot model.The frequency response of the high-frequency dual-port resonant-type diamond SAWD is measured by S11 and the dual-port test mode(S21),respectively.The results show that the quality factor of the device is 51.29 and the 3 dB bandwidth is 27.8 MHz by S11-mode measurement,which is better than the S21 mode,and is consistent with the frequency response curve by simulation.

In order to reduce the noises affixed to the signals when testing high frequency devices, a single-port test mode (S11) is used to test frequency response of high frequency (GHz) and dual-port surface acoustic wave devices (SAWDs) in this paper. The feasibility of the test is proved by simulating the Fabry-perot model. The frequency response of the high-frequency dual-port resonant-type diamond SAWD is measured by S11 and the dual-port test mode (S21), respectively. The results show that the quality factor of the device is 51.29 and the 3 dB bandwidth is 27.8 MHz by S11-mode measurement, which is better than the S21 mode, and is consistent with the frequency response curve by simulation.