作者: Ken-ya Hashimoto , Shuji Tanaka , Masayoshi Esashi
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摘要: This paper discusses possibilities of tunable radio frequency (RF) surface and bulk acoustic wave (SAW/BAW) filters. First, configuration RF front-end in current wireless communication systems is surveyed, research trends the flexible software defined (SDR) are discussed. Second, various filters introduced, we discuss how high performances expected by use SAW/BAW provided that above mentioned key technologies developed. Finally, explain what kinds subjects going on our projects for realization SDR.