H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 21/00 (2006.01) H01Q 1/22 (2006.01) H01Q 7/04 (2006.01) H01Q 11/12 (2006.01)
Patent
CA 2153041
An antenna (102) for simultaneously transmitting a receiving electromagnetic energy is disclosed. The antenna (102) includes first and second transmit element (104, 106) and a transmitter (108) for supplying a first current to the first transmit element (104) and a second current to the second transmit element (106) such that the first and second transmit elements (104, 106) radiate electromagnetic fields. Preferably, the supplied first and second currents are substantially equal. The antenna (102) also includes a sensor (120) for sensing differences between currents flowing through the first and second transmit elements. The differences are caused by an electromagnetic field external to the antenna such that antenna effectively receives the external electromagnetic field by sensing the current differences.
Bowers John H.
Lizzi Philip J.
Checkpoint Systems Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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