A method and system are presented for managing operation of a conformal phased-array antenna. The method comprises: providing structural data about the antenna to be operated, said structural data comprising data indicative of a geometry of a curved radiating surface defined by an arrangement of N antenna elements of the phased array and data indicative of said arrangement of N antenna elements; utilizing input data indicative of a selected direction of antenna operation and processing said structural data about the antenna, said processing comprising determining operational data for each of the antenna elements defining a desired radiation pattern of the antenna for said selected direction, said operational data comprising amplitude, phase and polarization of radiation for each antenna element.

A radar antenna calibration method includes: forming a detection matrix from signals detected by an arrangement of receive antennas in response to chirps transmitted by an arrangement of transmit antennas, the detection matrix having multiple rows corresponding to the chirps, multiple columns corresponding to a signal sample, and multiple planes corresponding the receive antennas; deriving a range matrix by performing a frequency transform on a portion of each row of the detection matrix; extracting a slice of the range matrix, with different rows of the slice being associated with different chirps and with different receive antennas; deriving a velocity matrix from the extracted slice by performing a frequency transform on a portion of each column of the extracted slice; analyzing the velocity matrix to determine a current peak width; and adjusting, based on the current peak width, phase shifts associated with one or more of the receive antennas.

Circuits, systems and computer readable media transmission of wireless signals in response to incoming signals in a wireless signaling environment. Such a system may include at least one transceiver for receiving an incoming signal via an antenna array from a device in the wireless signaling environment. The system may also include a controller operably coupled to the transceiver. The controller may measure a phase of the incoming signal, and determine, based on the phase, a transmit phase configuration for one or more antennas of the antenna array. The system may include at least one phase-locked loop (PLL) operably coupled to the transceiver(s). The PLL(s) may feed signals to the antenna(s) of the antenna array based on the transmit phase configuration for transmission of a responsive signal to the device.

The present disclosure relates to antenna devices and arrays of antenna devices. One example antenna device includes a first radiator configured to radiate a first electromagnetic signal, a second radiator configured to radiate a second electromagnetic signal, and a joint feeding network including a first 180-degree coupler and a second 180-degree coupler arranged in sequence. The first 180-degree coupler receives first input signal and second input signal, and the second 180-degree coupler provides first output signal to the first radiator and second output signal to the second radiator. In the joint feeding network, a first path connects the first 180-degree coupler to the second 180-degree coupler including a first phase shifter. A second path connects the first 180-degree coupler to the second 180-degree coupler including a second phase shifter and an attenuator.

A wireless communications system includes a first transceiver with a first phased array antenna panel having first circularly polarization reconfigurable receive transmit antennas, where the first circularly polarization reconfigurable receive transmit antennas form a first receive beam based on receive phase and receive amplitude information provided by a first master chip and form a first transmit beam based on transmit phase and transmit amplitude information provided by the first master chip. The wireless communications system may include a second transceiver having second circularly polarization reconfigurable receive transmit antennas where the second circularly polarization reconfigurable receive transmit antennas form a second receive beam based on receive phase and receive amplitude information provided by a second master chip, and form a second transmit beam based on transmit phase and transmit amplitude information provided by the second master chip.

A wireless communications system includes a first transceiver with a first phased array antenna panel having first circularly polarization reconfigurable receive transmit antennas, where the first circularly polarization reconfigurable receive transmit antennas form a first receive beam based on receive phase and receive amplitude information provided by a first master chip and form a first transmit beam based on transmit phase and transmit amplitude information provided by the first master chip. The wireless communications system may include a second transceiver having second circularly polarization reconfigurable receive transmit antennas where the second circularly polarization reconfigurable receive transmit antennas form a second receive beam based on receive phase and receive amplitude information provided by a second master chip, and form a second transmit beam based on transmit phase and transmit amplitude information provided by the second master chip.

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 sensing system. In some embodiments, the system includes a first imaging radio frequency receiver, a second imaging radio frequency receiver, a first optical beam combiner, a first imaging optical receiver, a second optical beam combiner, and an optical detector array. The first optical beam combiner may be configured to combine optical signals of the imaging radio frequency receivers. The second optical beam combiner may be configured to combine the optical signals of the imaging radio frequency receivers, and the optical signal of the first imaging optical receiver.

An optical scanner includes a light source, an optical phased array, a monitoring light receiving unit, and a signal processing unit. The optical phased array implements scanning by a light beam by individually controlling phases of a plurality of branched lights into which light supplied from the light source is branched, using a scanning phase amount, and radiating light from an antenna array that has a plurality of antenna elements. The monitoring light receiving unit receives light radiated from the optical phased array. The signal processing unit detects characteristics of the light beam from a detection result of the monitoring light receiving unit and generate a phase adjustment amount for correcting the scanning phase amount such that a detection value of the characteristics coincides with a design value prepared in advance.

Systems and methods for calibrating a phase array antenna (“PAA”) are provided. The system includes a PAA having a plurality of array elements and a remote calibration terminal. The PAA is connected to a processor unit. The PAA includes a reference beamforming network (“BFN”) for generating a reference beam and a calibration BFN for generating a calibration beam. The PAA applies a plurality of scrambled orthogonal codes to the calibration BFN to generate the calibration beam. The remote calibration terminal is configured to analyze the reference beam and the calibration beam to determine a calibration error for the PAA, the calibration error including a phase error and an amplitude error for each of the plurality of array elements of the PAA. The remote calibration terminal may be configured to measure a beam pointing error (“BPE”) of the PAA and/or a coupling between array elements.