Spatial power-combining devices and, more particularly, spatial power-combining devices with improved isolation are disclosed. Spatial power-combining devices are disclosed that include a thin film resistor that is configured to provide improved signal isolation. The thin film resistor may be arranged within one or more amplifier assemblies of the spatial power-combining device to reduce signal leakage between the amplifier assemblies. The thin film resistor may be formed on a carrier substrate or the thin film resistor may supported by a surface of an amplifier assembly without a carrier substrate. Spatial power-combining devices are disclosed that include a radial arrangement of amplifier assemblies, and each amplifier assembly includes an antenna structure and a thin film resistor.

A radio frequency receiver comprises a plurality of receiving antennas providing a plurality of radio frequency (RF) signals, a first set of phase shifters providing a first set of analog beams from a first set of RF signals in the plurality of RF signals, a second set of phase shifters providing second set of analog beams from a second set of RF signals and a digital beamformer providing final set of beams employing the first set of analog beams and the second set of analog beams. Similarly a radio frequency transmitter comprises a digital beamformer providing a plurality of digital beams, a first set of splitter splitting a first set of digital beams in the plurality of digital beams into first set of analog beams, a second set splitter splitting a second set of digital beams in the plurality of digital beams into second set of analog beams, a first set of phase shifters providing a first set of analog beams, a second set of phase shifters providing second set of analog beams, a set of adder adding the first of analog beams and second set of analog beams to form the set of RF signals.

Described is an machine-readable storage media having instruction stored thereon, that when executed, cause one or more processors to perform an operation comprising: sequentially transmit, in a first mode, at least two first probe request messages in at least two beam steering directions, respectively, towards a device; and receive, from the device, at least two first probe response messages in response to transmitting the at least two first probe request messages.

Described is an machine-readable storage media having instruction stored thereon, that when executed, cause one or more processors to perform an operation comprising: sequentially transmit, in a first mode, at least two first probe request messages in at least two beam steering directions, respectively, towards a device; and receive, from the device, at least two first probe response messages in response to transmitting the at least two first probe request messages.

A phased antenna array device comprises at least one input port for interfacing receive and transmit RF signals to/from an antenna array. A feeding line is provided to carry RF signals of two orthogonal polarizations from the input port P.sub.1, and at least one antenna feed element with an aperture or cross section having an order of symmetry C4 and supporting RF signals of two orthogonal polarizations is provided. At least one first substrate contains a plurality of antenna elements integrated into the substrate, with each antenna element capable of operating at two orthogonal polarizations. A plurality of phase shifters are connected to corresponding antenna elements, each phase shifter operating at two orthogonal polarizations, the output port of each phase shifter being connected to a short circuit.

A phased antenna array device comprises at least one input port for interfacing receive and transmit RF signals to/from an antenna array. A feeding line is provided to carry RF signals of two orthogonal polarizations from the input port P.sub.1, and at least one antenna feed element with an aperture or cross section having an order of symmetry C4 and supporting RF signals of two orthogonal polarizations is provided. At least one first substrate contains a plurality of antenna elements integrated into the substrate, with each antenna element capable of operating at two orthogonal polarizations. A plurality of phase shifters are connected to corresponding antenna elements, each phase shifter operating at two orthogonal polarizations, the output port of each phase shifter being connected to a short circuit.

Methods and devices for streamlining phase and amplitude calibration and linearization in RF transceiver circuits including a plurality of switchable transmit and receive processing paths is presented. According to one aspect, switchable feedback paths are provided that can selectively feedback a portion of a transmitted RF signal or a test RF signal for use in the calibration. According to another aspect, the switchable feedback paths include combination of switches and couplers to selectively combine feedback from one or more of the switchable feedback paths. According to another aspect, the switchable feedback paths reuse portions of the receive paths of the plurality of switchable transmit and receive processing paths. The switchable feedback paths can be used to provide a combined feedback RF signal based on one or more transmitted RF signals that can be used as a digital pre-distortion feedback for linearization of the one or more transmitted RF signals.

Methods and devices for streamlining phase and amplitude calibration and linearization in RF transceiver circuits including a plurality of switchable transmit and receive processing paths is presented. According to one aspect, switchable feedback paths are provided that can selectively feedback a portion of a transmitted RF signal or a test RF signal for use in the calibration. According to another aspect, the switchable feedback paths include combination of switches and couplers to selectively combine feedback from one or more of the switchable feedback paths. According to another aspect, the switchable feedback paths reuse portions of the receive paths of the plurality of switchable transmit and receive processing paths. The switchable feedback paths can be used to provide a combined feedback RF signal based on one or more transmitted RF signals that can be used as a digital pre-distortion feedback for linearization of the one or more transmitted RF signals.

Systems and methods are provided for distortion redirection in phased arrays. In an electronic device configured for transmission and reception of signals and having a two-dimensional phased array, effects of distortion, corresponding to at least one processing function applied during communication of signals, on the communication of signals may be assessed, and based on the effects of distortion, one or more adjustments for mitigating the effects of distortion may be configured and applied during processing of signals. Assessing the effects of distortion may include determining one or more characteristics associated with the communication of the signals, where the one or more characteristics relate and/or are subject to the effects of the distortion, and assessing the effects of distortion based on the one or more characteristics.

Systems and methods are provided for distortion redirection in phased arrays. In an electronic device configured for transmission and reception of signals and having a two-dimensional phased array, effects of distortion, corresponding to at least one processing function applied during communication of signals, on the communication of signals may be assessed, and based on the effects of distortion, one or more adjustments for mitigating the effects of distortion may be configured and applied during processing of signals. Assessing the effects of distortion may include determining one or more characteristics associated with the communication of the signals, where the one or more characteristics relate and/or are subject to the effects of the distortion, and assessing the effects of distortion based on the one or more characteristics.