Abstract: A method of radio frequency identification (RFID) tag bearing estimation comprises: at an RFID tag reader having a plurality of antenna elements, emitting a primary transmit beam; receiving a response signal from an RFID tag via the antenna elements; generating a first set of signal measurements corresponding to a first set of receive beam characteristics, based on a first partition of the response signal; generating a second set of signal measurements corresponding to a second set of receive beam characteristics, based on a second partition of the response signal; and combining the first and second sets of signal measurements, for selection of an estimated tag bearing for the RFID tag from the first and second receive beam characteristics.

Abstract: A method of radio frequency identification (RFID) tag bearing estimation comprises: at an RFID tag reader having a plurality of antenna elements, emitting a primary transmit beam; receiving a response signal from an RFID tag via the antenna elements; generating a first set of signal measurements corresponding to a first set of receive beam characteristics, based on a first partition of the response signal; generating a second set of signal measurements corresponding to a second set of receive beam characteristics, based on a second partition of the response signal; and combining the first and second sets of signal measurements, for selection of an estimated tag bearing for the RFID tag from the first and second receive beam characteristics.

Abstract: The present disclosure provides an integrated antenna activity monitor system and method that provides an integrated activity indicator for the antenna by tapping a portion of the radio frequency (RF) energy from the antenna and utilizing the RF energy to drive the integrated activity indicator. In an exemplary embodiment, the integrated activity indicator circuit comprises an impedance matching network, a high-frequency rectifier circuit, and a light emitting diode. The impedance matching network is coupled to an antenna feed of the antenna, and configured to tap a portion of radio frequency energy from the antenna feed. The high-frequency rectifier circuit is coupled to the impedance matching network, and the light emitting diode coupled to an output of the high-frequency rectifier circuit.