Patent ID: 8792837
Filing Date: 2014-07-29
Classification: G06K,H01Q

Abstract:
1. A transmission/reception device, comprising: a transmission/reception antenna; a transmitter structured to forward a transmission signal to the transmission/reception antenna; a receiver structured to receive a reception signal from the transmission/reception antenna and a controller structured to control the transmitter and the receiver; wherein the transmission/reception antenna comprises: a dielectric base board; an excitation loop antenna disposed on the dielectric base board; a transmission/reception loop antenna disposed on the dielectric base board in close proximity of but not in contact with the excitation loop antenna; and a resonance capacitor connected between two ends of the transmission/reception loop antenna; wherein a coupling capacitor is connected to one of the two ends of the transmission/reception loop antenna, and wherein the excitation loop antenna is connected to the transmitter and the transmission/reception loop antenna is connected to the receiver via the coupling capacitor.