To provide an antenna device capable of transmitting power stably.

An antenna device includes an adjuster to adjust phases of transmission power signals that are respectively supplied by multiple antenna elements, with respect to a first axis direction, an image acquiring unit to acquire an image; a deriving unit to convert a first position of a marker that is included in the image, into a second position of polar coordinates on a first plane that includes the first axis and a second axis, the first position being used in the image acquiring unit; an acquiring unit to acquire, based on the second position, an elevation angle of a projected position that is obtained by projecting the first position onto a second plane including the first axis and a third axis, the elevation angle being relative to the third axis of the second plane; a storage that stores multiple sets of phase data for respective elevation angles, the phase data being set such that phases of power that is received by the antenna elements are adjusted and matched; a controller to control the adjuster such that a direction of a beam defines the elevation angle for the second plane, based on phase data that is retrieved according to acquired elevation angle; and a power ramping unit to perform power ramping on at least one given transmission power signal.

Disclosed is a self-calibration method and apparatus for an array antenna system. According to an embodiment of the present disclosure, a correction method of an array antenna system includes: deriving, at a first time, a correction factor R.sub.i,j for a path connecting an i-th (i is an integer equal to or greater than one and equal to or less than m) transmission antenna and a j-th (j is an integer equal to or greater than one and equal to or less than n) reception antenna; deriving, at a second time, a calibration factor {circumflex over (Q)}.sub.i,j for the path connecting the i-th transmission antenna and the j-th reception antenna; and performing, based on the {circumflex over (Q)}.sub.i,j, calibration on the path connecting the i-th transmission antenna and the j-th reception antenna.

A low profile phased array antenna that is configured to be manufactured using additive manufacturing techniques is provided. In one or more embodiments, the phased array can include a plurality of signal ears, ground ears, and clustered pillars that can be arranged in relation to a base plate such that each component of the antenna can be manufactured from a single piece of material, thereby allowing for the use of additive manufacturing techniques which can substantially reduce the cost and time of the manufacturing process. The phased array can include a signal ear that include one or more posts that interface with an airgap located within a base plate of the array, wherein the size of the airgap in relation to the size of the post is configured to achieve an optimal level of impedance matching.

Methods and apparatus, including computer program products are provided for self-steering antennas. In one aspect, there is a method. The method may include receiving, at a plurality of antennas, phase shifted versions of a signal. The method may further include determining a phase relationship between the phase shifted versions of the signal. Based on the determined phase relationship, the method may include adjusting a phase of a first local oscillator to remove a phase difference between the phase shifted versions of the signal to change the phase shifted versions of the signal to being in-phase versions of the signal. The method may further include combining the in-phase versions of the signal to steer a beam to a transmitter.

An active phase switchable array includes a plurality of antenna elements and a bias circuit. Each of the radar elements includes an antenna, a power coupling network and an injection-locked oscillator (ILO), and each of the antenna elements is coupled with each other through the power coupling networks for operating the ILO of each of the antenna elements in self- and mutual-injection-locked states. The antenna elements in self-injection-locked state are utilized to detect the vital signs of subjects, and the antenna elements in mutual-injection-locked state are utilized to produce phase difference between the radiating signals of the antenna elements for forming a beam. As a result, the active phase switchable array can simultaneously detect the vital signs of multiple subjects.

A user equipment (UE) device may communicate with a wireless base station (BS). Each antenna in a phased antenna array on the UE may receive a reference signal transmitted by the BS during the beam training interval. Transceiver circuitry may measure wireless performance metric data from the reference signal. While receiving the reference signal, control circuitry may selectively activate different individual antennas, may selectively activate different subsets of antennas, or may concurrently activate all of the antennas in the array. The control circuitry may identify, based on the wireless performance metric data, a first set of the antennas in the array to that are being blocked by an external object and a second set of antennas array that are not blocked. After the beam training interval, the transceiver may use the second set of antennas to convey wireless data with the BS while the first set of antennas are disabled.

A particular computer-implemented method includes receiving sensed data from sensors of a sensor array, where data from each sensor is descriptive of waveform phenomena detected at the sensor. The method also includes determining an estimated spatial spectrum of the waveform phenomena based at least partially on the sensed data. The method further includes determining an estimated covariance matrix of the waveform phenomena based on the estimated spatial spectrum. The method includes determining adaptive beamforming weights using the estimated covariance matrix.

The present disclosure provides a coupler device for use in a phased array system. The coupler device includes a weighting network and a phase matrix network. The weighting network is configured to convert and amplify an input signal to obtain eight intermediate amplified signals. The phase matrix network is coupled to the weighting network, and is configured to generate eight output signals based on the eight intermediate amplified signals. An output array of the eight output signals are obtained by performing a matrix multiplication of an array of the eight intermediate amplified signals with a phase matrix of the phase matrix network.

An antenna device includes circuitry to acquire, based on a second position, an elevation angle of a projected position that is obtained by projecting a first position onto a second plane including a first axis and a third axis, the elevation angle being relative to the third axis of the second plane. The circuitry controls a phase adjuster such that a direction of a beam defines the elevation angle for the second plane, based on phase data that is retrieved according to acquired elevation angle, and performs power ramping on at least one given transmission power signal.

An antenna device includes circuitry to acquire, based on a second position, an elevation angle of a projected position that is obtained by projecting a first position onto a second plane including a first axis and a third axis, the elevation angle being relative to the third axis of the second plane. The circuitry controls a phase adjuster such that a direction of a beam defines the elevation angle for the second plane, based on phase data that is retrieved according to acquired elevation angle, and performs power ramping on at least one given transmission power signal.