Design and Simulation of a SAW Filter and a New Approach for Bandwidths Tuning
In this paper the analysis and structure of the SAW devices including SAW filters are examined and improved. The SAW devices have good stability and reliability and they are widely used in high-frequency communication systems such as mobile and TV sets. The design procedure of band-pass SA W filter is explained and accordingly a band-pass SAW filter with center frequency of 100 MHz is designed and simulated by COMSOL MULT1PHYSISC and MATLAB soft ware. The idea of adding a sensitive layer between the input and out inter digital transducers (IDT) is also examined.It is shown that by changing the dimension of this layer,the specification of the filter is changed.Hence,it can be used as an effective tool for adjusting the desired specification of the filter such as the bandwidth and insertion loss.
SAW filter MEMS devices sensitive layer
M.Sadeghi R.Ghayour H.Abiri M.Karimi
Shiraz University,IRAN Electrical and Computer Engineering Department,University of Shiraz,IRAN
国际会议
2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)
长沙
英文
642-645
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）