The present disclosure provides radio-frequency (RF) systems that can detect the presence of RF signals received by the system, as well as determine characteristics such as the operating frequency of RF signals, the type of RF source that transmitted each RF signal, and/or the location of each RF source with high precision and sensitivity while using low cost, scalable electronics that are versatile enough for deployment in a variety of environments. Such systems can employ a network of RF sensors that can coordinate in response to communication with a computer to perform any such detection and/or determination using trained models executed onboard the RF sensors and/or the computer. RF signals may have unique characteristics when received at one or more RF sensors that may be detected using trained models described herein, even in high noise or non-line of sight (LOS) environments and with low cost, low resolution RF receiver hardware.

There is provided mechanisms for enabling OTA estimation of a radio frequency parameter of a radio transmitter during a test time interval. The radio transmitter is configured for transmission in a set of beams. A method is performed by a controller of the radio transmitter. The method comprises identifying a subset of beams in the set of beams that, during the test time interval, are unused for transmission of scheduled signals. The method comprises instructing the radio transmitter to transmit, during the test time interval, an unscheduled signal in the subset of beams, whilst also transmitting the scheduled signals in those beams of the set of beams that are used for transmission of the scheduled signals, for enabling estimation of the radio frequency parameter of the radio transmitter.

There is provided mechanisms for enabling OTA estimation of a radio frequency parameter of a radio transmitter during a test time interval. The radio transmitter is configured for transmission in a set of beams. A method is performed by a controller of the radio transmitter. The method comprises identifying a subset of beams in the set of beams that, during the test time interval, are unused for transmission of scheduled signals. The method comprises instructing the radio transmitter to transmit, during the test time interval, an unscheduled signal in the subset of beams, whilst also transmitting the scheduled signals in those beams of the set of beams that are used for transmission of the scheduled signals, for enabling estimation of the radio frequency parameter of the radio transmitter.

A system and method for real-time in-situ calibration of an Active Electronically Scanned Array (AESA) utilizes an S-parameter matrix-based EM transfer function between an end fire, unobtrusive, near field probe radiating element to minimize AESA look angle blockage. A sniffer probe is integrated in the AESA aperture of mechanical mounting frame or embedded with the AESA aperture structure. Hadamard orthogonal coding is utilized to simultaneously energize AESA elements.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing polarization adjusting for one or more orthogonally-polarized element pairs of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing polarization adjusting for one or more orthogonally-polarized element pairs of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

An apparatus including an array of dual-polarized antenna elements. Each antenna element includes a pair of orthogonal polarization feeds, and a coupler configured to couple, in the near field, the orthogonal polarizations. The apparatus also including control circuitry configured to control, for each polarization, for each antenna element, a power adjustment and a phase adjustment applied to signals of the respective polarization feeds. The apparatus further includes measurement circuitry configured to measure, for each polarization, for each antenna element via its respective coupler, a power and/or a phase of a signal transmitted from the respective array. The apparatus also includes calibration circuitry configured to adjust, for each polarization, for each antenna element, the power adjustment and/or the phase adjustment applied to signals of the respective polarization feeds in dependence upon the measurement, for each polarization, of power and/or phase of the signal transmitted from the respective antenna element.

The present disclosure relates to a device for activating a radio frequency (RF) module which is to be used efficiently in an electronic device that operates a plurality of RF modules (or antenna modules) in a wireless communication system, and to a method for controlling same. To this end, the electronic device checks the temperatures of the plurality of antenna modules using a first frequency band, and identifies candidate antenna modules in consideration of the temperatures of the plurality of antenna modules. The electronic device selects a serving antenna module from among the candidate antenna modules so that an available temperature state, in which the temperatures of the candidate antenna modules are lower than a threshold temperature, is maintained, and transmits and receives a signal using the first frequency band in the serving antenna module. The candidate antenna modules may include antenna modules which support communication performance of a threshold level or higher.

The present disclosure relates to a device for activating a radio frequency (RF) module which is to be used efficiently in an electronic device that operates a plurality of RF modules (or antenna modules) in a wireless communication system, and to a method for controlling same. To this end, the electronic device checks the temperatures of the plurality of antenna modules using a first frequency band, and identifies candidate antenna modules in consideration of the temperatures of the plurality of antenna modules. The electronic device selects a serving antenna module from among the candidate antenna modules so that an available temperature state, in which the temperatures of the candidate antenna modules are lower than a threshold temperature, is maintained, and transmits and receives a signal using the first frequency band in the serving antenna module. The candidate antenna modules may include antenna modules which support communication performance of a threshold level or higher.

An electronic device is provided that includes a substrate for receiving communication circuitry, and an antenna coupled to the substrate and configured to provide a signal to the communication circuitry. The electronic device also includes one or more processors, and a data storage device having executable instructions accessible by the one or more processors. Responsive to execution of the instructions, the one or more processors are configured to monitor the antenna or the communication circuitry to detect the signal, and prompt a communication related to the antenna in response to not detecting the signal or detecting a degraded signal.