Abstract: A device for estimating a two-dimensional direction of arrival (DOA) of an electromagnetic beam includes an antenna system, and a signal processor operatively coupled to the antenna elements of the antenna system. The antenna system includes a plurality of antenna elements arranged in a rectangular planar array and configured to receive signal components of the electromagnetic beam. The signal processor estimates the two-dimensional DOA of the electromagnetic beam based on relative phases of the signal components of the electromagnetic beam.

Abstract: A transceiver with a spectrum sensing unit configured to detect, within a plurality of millimeter wave bands, one or more channels with tolerably low interference for selection. The transceiver has a transmitter configured to modulate a transmit signal to an output transmit signal using a transmit carrier frequency compatible with a transmit channel selected from the one or more channels, and using a transmit duplexing operating mode compatible with a transmit millimeter wave of the plurality of millimeter wave bands that correspond to the transmit channel. The transceiver has a receiver configured to demodulate a receive signal from an input receive signal using a receive carrier frequency compatible with a receive channel selected from the one or more channels, and using a receive duplexing operating mode compatible with a receive millimeter wave of the plurality of millimeter wave bands that correspond to the receive channel.

Abstract: A transceiver with a spectrum sensing unit configured to detect, within a plurality of millimeter wave bands, one or more channels with tolerably low interference for selection. The transceiver has a transmitter configured to modulate a transmit signal to an output transmit signal using a transmit carrier frequency compatible with a transmit channel selected from the one or more channels, and using a transmit duplexing operating mode compatible with a transmit millimeter wave of the plurality of millimeter wave bands that correspond to the transmit channel. The transceiver has a receiver configured to demodulate a receive signal from an input receive signal using a receive carrier frequency compatible with a receive channel selected from the one or more channels, and using a receive duplexing operating mode compatible with a receive millimeter wave of the plurality of millimeter wave bands that correspond to the receive channel.

Abstract: A device for estimating a two-dimensional direction of arrival (DOA) of an electromagnetic beam includes an antenna system, and a signal processor operatively coupled to the antenna elements of the antenna system. The antenna system includes a plurality of antenna elements arranged in a rectangular planar array and configured to receive signal components of the electromagnetic beam. The signal processor estimates the two-dimensional DOA of the electromagnetic beam based on relative phases of the signal components of the electromagnetic beam.