发明名称 Passive transponders using acoustic surface wave devices
摘要 A passive transponder sensitive to electromagnetic pulses received in the form of surface acoustic waves. The device utilizes a plurality of interdigital transponders each consisting of a metallic deposit on a piezoelectric substrate and serving as an electrode. Transponder deactivation and energy interruption means provide programability and coding.
申请公布号 US4059831(A) 申请公布日期 1977.11.22
申请号 US19750617251 申请日期 1975.10.06
申请人 NORTHWESTERN UNIVERSITY 发明人 EPSTEIN, MAX
分类号 G01S13/75;(IPC1-7):G01S9/56 主分类号 G01S13/75
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