Antenna system for use in an automatic vehicular identification system
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United States of America Patent
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Jun 27, 1995
Grant Date -
N/A
app pub date -
Sep 28, 1993
filing date -
Sep 28, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An antenna system for use in an Automatic Vehicle Identification (AVI) system 10 having a plurality of non-resonant antenna loops 14 which operate as a single loop antenna during a transmit cycle and individual antenna during a receive cycle. The antenna system includes individual antenna 14 each having amplifier 29 connected to a single source. A switch circuit selectively switches the system from a transmit to receive mode and from a receive to a transmit mode.
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