Phased array radar systems for unmanned aerial vehicles (UAVs) are disclosed. A disclosed example radar apparatus for a small UAVs includes a transmitter to transmit a transmit signal in the X-band, a receive phased array including at least two receive antennas, wherein the receive phased array provides a field-of-view of at least 100 degrees in a first direction and at least 20 degrees in a second direction perpendicular to the first direction, a first processor programmed to determine a location of an object based on an output from each of the at least two antennas, a second processor programmed to perform collision avoidance based on the location of the object, and a mount to mechanically couple the radar apparatus to the UAV.

The methods and device disclosed herein provide an array such as a Radio Frequency (FR) antenna array for measuring the array movement or displacement of the array relative to a reference location. In some cases the array may be attached to or in communication with the device. The array comprises at least two transducers (e.g. RF antennas), wherein at least one of the at least two transducers is configured to transmit a signal towards the object, and at least one transceiver attached to said at least two transducers, the at least one transceiver is configured to repetitively transmit at least one signal toward an object and receive a plurality of signals affected or reflected while the array is moved in proximity to the object/medium or scene; and at least one processor unit, configured to: process the affected signals to yield a plurality of signal measurements and compare said signal measurements obtained at different locations over time of said second object and calculate a movement of the object relative to a reference location.

The methods and device disclosed herein provide an array such as a Radio Frequency (FR) antenna array for measuring the array movement or displacement of the array relative to a reference location. In some cases the array may be attached to or in communication with the device. The array comprises at least two transducers (e.g. RF antennas), wherein at least one of the at least two transducers is configured to transmit a signal towards the object, and at least one transceiver attached to said at least two transducers, the at least one transceiver is configured to repetitively transmit at least one signal toward an object and receive a plurality of signals affected or reflected while the array is moved in proximity to the object/medium or scene; and at least one processor unit, configured to: process the affected signals to yield a plurality of signal measurements and compare said signal measurements obtained at different locations over time of said second object and calculate a movement of the object relative to a reference location.

An imaging system (MIS), optionally a medical imaging system, with wireless communication capability and related method. The imaging system comprises a gantry (RG) rotatable around a rotation axis. The gantry includes a detector device (D) capable of recording, in plural spatial positions, measurement data in relation to a subject (such as a patient) (PAT) to be imaged. The system also includes a radio transmitter (TX) for generating a directed radio beam propagatable along a propagation axis to transmit the measurement data to a radio receiver (RX). The radio transmitter (TX) is arranged at the rotatable gantry and is operable so that the propagation direction intersects the rotation axis in a location that is situated away from the rotatable gantry.

A transmission system and method for transmitting radio frequency (RF) radiation in a predetermined direction at a sequence of K frequencies by an antenna array. The system includes an RF signal generator configured for generating electrical signals having an initial amplitude and an initial phase through transmission channels corresponding to antenna elements of the antenna array at the sequence of K frequencies. The system also includes a modification system, configured for obtaining optimal electrical signals for which a transmission efficiency coefficient of the transmission system is equal to or greater than a predetermined threshold value, and a steering system configured for (i) receiving the optimal electrical signals, (ii) generating steering electrical signals related to the optimal electrical signals and (iii) relaying the steering electrical signals to the antenna array to form a steered beam for transmission in the predetermined direction.

A transmission system and method for transmitting radio frequency (RF) radiation in a predetermined direction at a sequence of K frequencies by an antenna array. The system includes an RF signal generator configured for generating electrical signals having an initial amplitude and an initial phase through transmission channels corresponding to antenna elements of the antenna array at the sequence of K frequencies. The system also includes a modification system, configured for obtaining optimal electrical signals for which a transmission efficiency coefficient of the transmission system is equal to or greater than a predetermined threshold value, and a steering system configured for (i) receiving the optimal electrical signals, (ii) generating steering electrical signals related to the optimal electrical signals and (iii) relaying the steering electrical signals to the antenna array to form a steered beam for transmission in the predetermined direction.

An electronic device is provided. The electronic device includes a first substrate, a multilayer structure, and a passivation layer. The multilayer structure is disposed on the first substrate. The multilayer structure includes a first conductive layer and a second conductive layer disposed on the first conductive layer. The passivation layer is disposed on the second conductive layer. In addition, a thermal expansion coefficient of the second conductive layer is between a thermal expansion coefficient of the first conductive layer and a thermal expansion coefficient of the passivation layer.

An electronic device is provided. The electronic device includes a first substrate, a multilayer structure, and a passivation layer. The multilayer structure is disposed on the first substrate. The multilayer structure includes a first conductive layer and a second conductive layer disposed on the first conductive layer. The passivation layer is disposed on the second conductive layer. In addition, a thermal expansion coefficient of the second conductive layer is between a thermal expansion coefficient of the first conductive layer and a thermal expansion coefficient of the passivation layer.

A method and apparatus with vehicle radar control is disclosed. An apparatus with vehicle radar control includes a radio frequency (RF) transceiver including a transmitting antenna array and a receiving antenna array, and at least one processor configured to collect environmental information of the vehicle, determine a radar mode of the vehicle based on the collected environmental information, generate one or more control signal configured to control one or more of the transmitting antenna array and the receiving antenna array based on the determined radar mode, and provide the generated one or more control signals to the RF transceiver, wherein one or more of the transmitting antenna array and the receiving antenna array operate according to the one or more generated control signals.

A method and apparatus with vehicle radar control is disclosed. An apparatus with vehicle radar control includes a radio frequency (RF) transceiver including a transmitting antenna array and a receiving antenna array, and at least one processor configured to collect environmental information of the vehicle, determine a radar mode of the vehicle based on the collected environmental information, generate one or more control signal configured to control one or more of the transmitting antenna array and the receiving antenna array based on the determined radar mode, and provide the generated one or more control signals to the RF transceiver, wherein one or more of the transmitting antenna array and the receiving antenna array operate according to the one or more generated control signals.