发明名称 RADIO FREQUENCY TAG SYSTEM
摘要 The RF tag system (10) of the present invention minimizes the effect of the RF tag on the overall radar cross section (RCS) of the object with which it is associated, tailors the signal reflected from the tag to match the actual RCS of the object with which it is associated, utilizes an RF tag design that reduces degenerative RF coupling at the tag, and is designed to exploit the operational features of conventional pulse Doppler radars. In accordance with one embodiment of the present invention, a radio frequency tag system (10) is provided including an interrogator (20) and a tag (30). The tag is secured to an object (40). The interrogator is configured to generate a transmitted electromagnetic interrogation signal at a predetermined interrogation frequency. The tag comprises an antenna array including a plurality of receiver antennas (32) and a plurality of transmitter antennas (34).
申请公布号 WO0016234(A8) 申请公布日期 2001.03.08
申请号 WO1999US19467 申请日期 1999.08.26
申请人 SPECTRA RESEARCH, INC. 发明人 ZIDEK, PAUL, DONALD;SELLERS, JOHN, WILLIAM, JR.;THIELE, GARY, A.;MAYLE, EUGENE, EDWIN, JR.;RIECHERS, RONALD, GEORGE
分类号 G01S13/76;G06K19/07;H01Q1/22;(IPC1-7):G01S13/76 主分类号 G01S13/76
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