Abstract: Various techniques are provided to efficiently detect the position and angular velocity of an object relative to a compact radar system including a transmitter antenna array and a receiver antenna array. In one example, a method includes repeatedly scanning a transmitter antenna array and a receiver antenna array of an object sensing system through a plurality of designated transmitter and receiver channels over a period of time to generate a time series of measured channel responses corresponding to each one of the designated channels, determining a time series of directional vectors to or from an object scanned by at least one of the designated channels, and/or a corresponding time series of average phase differences, based, at least in part, on the time series of measured channel responses, and determining an angular velocity of the object from the time series of directional vectors and/or the corresponding time series of average phase differences.

Abstract: A voltage controlled oscillator (VCO) having a harmonic trap is disclosed. A VCO includes first and second transistors cross-coupled with one another. The VCO further includes a first inductor having first and second loops coupled to one another, wherein the first inductor is arranged such that current flow through first loop is in the opposite direction of current flow in the second loop. The VCO further includes a second inductor that implements a third loop surrounding the first inductor.

Abstract: Various techniques are provided to efficiently detect the position and angular velocity of an object relative to a compact radar system including a transmitter antenna array and a receiver antenna array. In one example, a method includes repeatedly scanning a transmitter antenna array and a receiver antenna array of an object sensing system through a plurality of designated transmitter and receiver channels over a period of time to generate a time series of measured channel responses corresponding to each one of the designated channels, determining a time series of directional vectors to or from an object scanned by at least one of the designated channels, and/or a corresponding time series of average phase differences, based, at least in part, on the time series of measured channel responses, and determining an angular velocity of the object from the time series of directional vectors and/or the corresponding time series of average phase differences.

Abstract: A voltage controlled oscillator (VCO) having a harmonic trap is disclosed. A VCO includes first and second transistors cross-coupled with one another. The VCO further includes a first inductor having first and second loops coupled to one another, wherein the first inductor is arranged such that current flow through first loop is in the opposite direction of current flow in the second loop. The VCO further includes a second inductor that implements a third loop surrounding the first inductor.

Abstract: A Wilkinson Combiner circuit is disclosed. The circuit includes first and second input ports, and a resistive-capacitive (RC) network coupled there between. The circuit further includes an amplifier having an amplifier input node, and a coupled inductor. The coupled inductor includes first, second, and third terminals, coupled to the first input port, the second input port, and the amplifier input node, respectively. Signals conveyed from the first and second input ports are passed through the corresponding portions of the coupled inductor, are combined into a composite signal and amplified by the amplifier.

Abstract: A Wilkinson Combiner circuit is disclosed. The circuit includes first and second input ports, and a resistive-capacitive (RC) network coupled there between. The circuit further includes an amplifier having an amplifier input node, and a coupled inductor. The coupled inductor includes first, second, and third terminals, coupled to the first input port, the second input port, and the amplifier input node, respectively. Signals conveyed from the first and second input ports are passed through the corresponding portions of the coupled inductor, are combined into a composite signal and amplified by the amplifier.

Abstract: Various techniques are provided to efficiently detect the position and angular velocity of an unmanned aerial vehicle (UAV) of a UAV system including a transmitter antenna array and a receiver antenna array. In one example, a method includes establishing a wireless link between a UAV controller and a UAV using at least one transmitter antenna array and/or at least one receiver antenna array, communicating link state data corresponding to the established wireless link over the established wireless link, generating UAV operational data based, at least in part, on the link state data, wherein the UAV operational data is configured to control operation of the UAV, and controlling operation of the UAV using the UAV operational data.

Abstract: A transceiver circuit that includes a receiver and transmitter circuits may send and receive data signals using an antenna. The transceiver circuit may be coupled to the antenna and other circuits using multiple impedance matching networks configured to match input and output impedance values of the receiver and transmitter circuits to the antenna and other circuits. The impedance matching networks may selectively couple and decouple different ports of the receiver and transmitter circuits to other circuit nodes based on whether the transceiver is operating in transmit or receive mode.

Abstract: A disclosed wireless tunneling system tunnels communications between two processing apparatuses through a wireless link, while maintaining compliance of the communications between the two processing apparatuses with at least two different wired communication protocols. In one embodiment, the wireless tunneling system includes two wireless tunneling apparatuses that communicate with each other through the wireless link. A local wireless tunneling apparatus is coupled to a local processing apparatus through a wired connection and a remote wireless tunneling apparatus is coupled to the remote processing apparatus through another wired connection. The two processing apparatuses may communicate with each other through the wireless link using the two wireless tunneling apparatuses as if the two processing apparatuses were connected through wired connections.

Abstract: A triplexer having integrated switching circuitry is disclosed. In one embodiment, a triplexer is used, in a transmit mode, to combine a clock signal, a control signal, and a modulated (e.g., a radio frequency, or RF) signal into a composite signal for transmission over a transmission line. In a receive mode, the triplexer receives and separates the composite signal into the clock signal, the control signal, and the modulated signal. The triplexer further includes switching circuitry integrated therein. The switching circuitry is operable to switch the triplexer between the transmit and receive modes.

Abstract: A triplexer having integrated switching circuitry is disclosed. In one embodiment, a triplexer is used, in a transmit mode, to combine a clock signal, a control signal, and a modulated (e.g., a radio frequency, or RF) signal into a composite signal for transmission over a transmission line. In a receive mode, the triplexer receives and separates the composite signal into the clock signal, the control signal, and the modulated signal. The triplexer further includes switching circuitry integrated therein. The switching circuitry is operable to switch the triplexer between the transmit and receive modes.

Abstract: A transmit-receive (T/R) switch is disclosed. An apparatus including a T/R switch includes a transceiver to transmit signals to an antenna and to receive signals from the antenna. The signals are conveyed to and from the transceiver by a T/R switch. The T/R switch includes a transmit path and a receive path. The receive path includes a three-port inductor having a first terminal coupled to an input/output (I/O) terminal of the T/R switch and a second terminal coupled to a first pass transistor, and a third terminal. A pull-down transistor is coupled between the third terminal and a ground node. When active, the pull-down transistor pulls the receive path down toward ground.

Abstract: Various techniques are provided to efficiently detect the position of an object relative to a compact radar system including a transmitter antenna array and a receiver antenna array. In one example, a method includes designating a plurality of transmitter and receiver channels for a transmitter antenna array and a receiver antenna array of an object sensing system, scanning the transmitter antenna array and the receiver antenna array through the designated channels to measure channel responses corresponding to each one of the designated channels, and determining a directional vector to or from an object scanned by at least one of the designated channels based, at least in part, on the measured channel responses.

Abstract: Disclosed wireless tunneling system includes two wireless tunneling apparatuses that communicate with each other through the wireless link. A local wireless tunneling apparatus is coupled to a local processing apparatus through a wired connection and a remote wireless tunneling apparatus is coupled to the remote processing apparatus through another wired connection. The two processing apparatuses bi-directionally communicate with each other through the wireless link using the two wireless tunneling apparatuses as if the two processing apparatuses were connected through a wired connection.

Abstract: Disclosed wireless tunneling system includes two wireless tunneling apparatuses that communicate with each other through the wireless link. A local wireless tunneling apparatus is coupled to a local processing apparatus through a wired connection and a remote wireless tunneling apparatus is coupled to the remote processing apparatus through another wired connection. The two processing apparatuses bi-directionally communicate with each other through the wireless link using the two wireless tunneling apparatuses as if the two processing apparatuses were connected through a wired connection.

Abstract: Various techniques are provided to efficiently detect the position and angular velocity of an object relative to a compact radar system including a transmitter antenna array and a receiver antenna array. In one example, a method includes repeatedly scanning a transmitter antenna array and a receiver antenna array of an object sensing system through a plurality of designated transmitter and receiver channels over a period of time to generate a time series of measured channel responses corresponding to each one of the designated channels, determining a time series of directional vectors to or from an object scanned by at least one of the designated channels, and/or a corresponding time series of average phase differences, based, at least in part, on the time series of measured channel responses, and determining an angular velocity of the object from the time series of directional vectors and/or the corresponding time series of average phase differences.

Abstract: A disclosed wireless tunneling system tunnels communications between two processing apparatuses through a wireless link, while maintaining compliance of the communications between the two processing apparatuses with at least two different wired communication protocols. In one embodiment, the wireless tunneling system includes two wireless tunneling apparatuses that communicate with each other through the wireless link. A local wireless tunneling apparatus is coupled to a local processing apparatus through a wired connection and a remote wireless tunneling apparatus is coupled to the remote processing apparatus through another wired connection. The two processing apparatuses may communicate with each other through the wireless link using the two wireless tunneling apparatuses as if the two processing apparatuses were connected through wired connections.

Abstract: A disclosed wireless tunneling system tunnels communications between two processing apparatuses through a wireless link, while maintaining compliance of the communications between the two processing apparatuses with at least two different wired communication protocols. In one embodiment, the wireless tunneling system includes two wireless tunneling apparatuses that communicate with each other through the wireless link. A local wireless tunneling apparatus is coupled to a local processing apparatus through a wired connection and a remote wireless tunneling apparatus is coupled to the remote processing apparatus through another wired connection. The two processing apparatuses may communicate with each other through the wireless link using the two wireless tunneling apparatuses as if the two processing apparatuses were connected through wired connections.

Abstract: Various techniques are provided to efficiently detect the position and angular velocity of an unmanned aerial vehicle (UAV) of a UAV system including a transmitter antenna array and a receiver antenna array. In one example, a method includes establishing a wireless link between a UAV controller and a UAV using at least one transmitter antenna array and/or at least one receiver antenna array, communicating link state data corresponding to the established wireless link over the established wireless link, generating UAV operational data based, at least in part, on the link state data, wherein the UAV operational data is configured to control operation of the UAV, and controlling operation of the UAV using the UAV operational data.

Abstract: Disclosed wireless tunneling system includes two wireless tunneling apparatuses that communicate with each other through the wireless link. A local wireless tunneling apparatus is coupled to a local processing apparatus through a wired connection and a remote wireless tunneling apparatus is coupled to the remote processing apparatus through another wired connection. The two processing apparatuses bi-directionally communicate with each other through the wireless link using the two wireless tunneling apparatuses as if the two processing apparatuses were connected through a wired connection.