Abstract: For example, an apparatus may include a polarized antenna including a dielectric layer including a plurality of antenna vias; a first metal layer on a first side of the dielectric layer, the first metal layer including a plurality of antenna elements connected to first ends of the plurality of antenna vias; and a second metal layer on a second side of the dielectric layer opposite to the first side of the dielectric layer, the second metal layer including an antenna feeding trace including a transformer portion and a splitter portion, the transformer portion connected to a second end of a first antenna via, the splitter portion including a first splitter arm connecting the transformer portion to a second end of a second antenna via, and a second splitter arm connecting the transformer portion to a second end of a third antenna via.

Abstract: For example, a polarized antenna may include a dielectric layer including an antenna via; a first metal layer on a first side of the dielectric layer, the first metal layer including an antenna feeding trace connected to a first end of the antenna via; and a second metal layer on a second side of the dielectric layer. For example, the second metal layer may include a plurality of antenna elements including a first antenna element, a second antenna element, and a third antenna element. For example, the third antenna element may be connected to a second end of the antenna via. For example, the second metal layer may include a plurality of antenna traces serially connecting the plurality of antenna elements.

Abstract: For example, an apparatus may include a radome; and a stack series fed antenna including a plurality of antenna layers, the plurality of antenna layers including a first antenna layer on an inner surface of the radome, the first antenna layer including a first plurality of serially connected antenna elements, and a first trace configured to drive an electrical current from a power source to the first plurality of serially connected antenna elements; and a second antenna layer covered by the inner surface of the radome, the second antenna layer including a second plurality of serially connected antenna elements, and a second trace configured to serially connect the second plurality of serially connected antenna elements to a Radio Frequency (RF) chain.

Abstract: Disclosed herein is a lens antenna system that includes a reconfigurable aperture configured to receive a source beam. The reconfigurable aperture also provides an output beam based on a surface impedance distribution of the reconfigurable aperture and the received source beam. The control device is operatively coupled to the reconfigurable aperture, wherein the control device is configured to control the surface impedance distribution of the reconfigurable aperture to configure and reconfigure a beam pattern of the output beam. A plurality of antenna elements may be physically positioned proximate the reconfigurable aperture, wherein the plurality of antennas may be configured to generate the source beam.

Abstract: Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) antennas to transmit radar Tx signals, and a plurality of Receive (Rx) antennas to receive radar Rx signals. For example, the radar Rx signals may be based on the radar Tx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

Abstract: Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, a radar system may include a plurality of radar devices. For example, a radar device may include one or more Transmit (Tx) antennas to transmit radar Tx signals, one or more Receive (Rx) antennas to receive radar Rx signals, and a processor to generate radar information based on the radar Rx signals. In one example, the radar system may be implemented as part of a vehicle. In other aspects, the radar system may include any other additional or alternative elements and/or may be implemented as part of any other device or system.

Abstract: Automotive radar systems may employ a reconfigurable connection of antennas to radar transmitters and/or receivers. An illustrative embodiment of an automotive radar system includes: a radar transmitter; a radar receiver; and a digital signal processor coupled to the radar receiver to detect reflections of a signal transmitted by the radar transmitter and to derive signal measurements therefrom. At least one of the radar transmitter and the radar receiver are switchable to provide the digital signal processor with signals from each of multiple combinations of transmit antenna and receive antenna.

Abstract: Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) antennas to transmit radar Tx signals, and a plurality of Receive (Rx) antennas to receive radar Rx signals. For example, the radar Rx signals may be based on the radar Tx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

Abstract: For example, an apparatus may include a Printed Circuit Board (PCB); a Multiple-Input-Multiple-Output (MIMO) radar antenna on the PCB, the MIMO radar antenna comprising a plurality of Transmit (Tx) antenna elements configured to transmit Tx radar signals, and a plurality of receive (Rx) antenna elements configured to receive Rx radar signals based on the Tx radar signals; and a surface wave mitigator connected to the PCB, the surface wave mitigator configured to mitigate an impact of surface waves via the PCB on a radiation pattern of the MIMO radar antenna.

Abstract: Automotive radar systems may employ a reconfigurable connection of antennas to radar transmitters and/or receivers. An illustrative embodiment of an automotive radar system includes: a radar transmitter; a radar receiver; and a digital signal processor coupled to the radar receiver to detect reflections of a signal transmitted by the radar transmitter and to derive signal measurements therefrom. At least one of the radar transmitter and the radar receiver are switchable to provide the digital signal processor with signals from each of multiple combinations of transmit antenna and receive antenna.

Abstract: Millimeter-wave (mmWave) and sub-mmWave technology, apparatuses, and methods that relate to receivers for wireless communications are described. The various aspects include an apparatus of a communication device including an antenna array and switching circuitry coupled to each antenna of the antenna array. The switching circuitry is configured to switch at a rate based on the center frequency of incoming communications on each respective antenna to generate at least two antenna patterns and provide the at least two antenna patterns to processing circuitry for decoding.

Abstract: Automotive radar systems may employ a reconfigurable connection of antennas to radar transmitters and/or receivers. An illustrative embodiment of an automotive radar system includes: a radar transmitter; a radar receiver; and a digital signal processor coupled to the radar receiver to detect reflections of a signal transmitted by the radar transmitter and to derive signal measurements therefrom. At least one of the radar transmitter and the radar receiver are switchable to provide the digital signal processor with signals from each of multiple combinations of transmit antenna and receive antenna.

Abstract: For example, an apparatus may include a Printed Circuit Board (PCB) including a Ball Grid Array (BGA) on a first side of the PCB, the BGA configured to connect a Surface Mounted Device (SMD) to the PCB; an antenna disposed on a second side of the PCB opposite to the first side, the antenna to communicate a Radio Frequency (RF) signal of the SMD; and an RF transition to transit the RF signal between the BGA and the antenna, the RF transition including a plurality of signal buried-vias; a first plurality of microvias configured to transit the RF signal between the plurality of signal buried-vias and a ball of the BGA, the first plurality of microvias are rotationally misaligned with respect to the plurality of signal buried-vias; and a second plurality of microvias configured to transit the RF signal between the plurality of signal buried-vias and the antenna.

Abstract: For example, an apparatus may include a Printed Circuit Board (PCB); a Multiple-Input-Multiple-Output (MIMO) radar antenna on the PCB, the MIMO radar antenna comprising a plurality of Transmit (Tx) antenna elements configured to transmit Tx radar signals, and a plurality of receive (Rx) antenna elements configured to receive Rx radar signals based on the Tx radar signals; and a surface wave mitigator connected to the PCB, the surface wave mitigator configured to mitigate an impact of surface waves via the PCB on a radiation pattern of the MIMO radar antenna.

Abstract: For example, an apparatus may include a Printed Circuit Board (PCB); a Multiple-Input-Multiple-Output (MIMO) radar antenna on the PCB, the MIMO radar antenna comprising a plurality of Transmit (Tx) antenna elements configured to transmit Tx radar signals, and a plurality of receive (Rx) antenna elements configured to receive Rx radar signals based on the Tx radar signals; and a surface wave mitigator connected to the PCB, the surface wave mitigator configured to mitigate an impact of surface waves via the PCB on a radiation pattern of the MIMO radar antenna.

Abstract: For example, an apparatus may include a Printed Circuit Board (PCB) including a Ball Grid Array (BGA) on a first side of the PCB, the BGA configured to connect a Surface Mounted Device (SMD) to the PCB; an antenna disposed on a second side of the PCB opposite to the first side, the antenna to communicate a Radio Frequency (RF) signal of the SMD; and an RF transition to transit the RF signal between the BGA and the antenna, the RF transition including a plurality of signal buried-vias; a first plurality of microvias configured to transit the RF signal between the plurality of signal buried-vias and a ball of the BGA, the first plurality of microvias are rotationally misaligned with respect to the plurality of signal buried-vias; and a second plurality of microvias configured to transit the RF signal between the plurality of signal buried-vias and the antenna.

Abstract: Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) antennas to transmit radar Tx signals, and a plurality of Receive (Rx) antennas to receive radar Rx signals. For example, the radar Rx signals may be based on the radar Tx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

Abstract: A radar device may include a digital to analog converter (DAC) stage. The DAC stage may generate a plurality of analog signals. The DAC stage may generate a different analog signal for each transmitter chain of a plurality of transmitter chains. Each analog signal of the plurality of analog signals may represent a single digital signal. Each transmitter chain of the plurality of transmitter chains may include a transmit chain portion and switched analog beamforming network (BFN). The transmit chain portion may generate a plurality of intermediate analog signals representative of the corresponding analog signal. The switched analog BFN may generate a plurality of analog transmit signals for an intermediate analog signal of the plurality of intermediate analog signals. The plurality of analog transmit signals may include a beam formed in accordance with a state of the switched analog BFN.

Abstract: For example, an apparatus may include a radome; and a stack series fed antenna including a plurality of antenna layers, the plurality of antenna layers including a first antenna layer on an inner surface of the radome, the first antenna layer including a first plurality of serially connected antenna elements, and a first trace configured to drive an electrical current from a power source to the first plurality of serially connected antenna elements; and a second antenna layer covered by the inner surface of the radome, the second antenna layer including a second plurality of serially connected antenna elements, and a second trace configured to serially connect the second plurality of serially connected antenna elements to a Radio Frequency (RF) chain.

Abstract: For example, a system may include a radome to be attached to a vehicle bumper fascia; an antenna array on a Printed Circuit Board (PCB), the antenna array is between the PCB and the radome, the antenna array comprising a Transmit (Tx) antenna configured to transmit Tx radar signals via the radome and the vehicle bumper fascia, and a receive (Rx) antenna configured to receive Rx radar signals based on the Tx radar signals; and an absorbing spacer in a spacer area between the PCB and the radome, the spacer area separating the Tx antenna from the Rx antenna, the absorbing spacer configured to absorb reflected signals formed by reflection of the Tx radar signals from the vehicle bumper fascia.