Abstract: Different approaches that aim to extend scan range of phased array antennas by means of altering surface waves and/or altering the coupling are disclosed. One approach includes providing a phased array antenna where a surface of a substrate that houses antenna elements of the array includes openings such as trenches or grooves. Such openings in the surface effectively reduce the dielectric constant of the substrate, are easy to manufacture, and may reduce or eliminate the need to use exotic and expensive low-k dielectric materials. Another approach includes providing a phased array antenna where antenna elements are disposed over a substrate in the form of surface mount (SMT) components that are reduced in size/footprint. Using SMT antenna elements with a reduced size allows achieving the same gain while spacing antenna elements farther apart with gaps in between the antenna elements, thus also reducing the overall dielectric constant of the substrate.

Abstract: RF systems configured to implement full-duplex wireless data transfer for rotary joints are disclosed. An example RF system includes a 60 GHz short distance communication link implemented using elliptically (e.g., circularly) polarized antennas. Such a system may provide a mm-wave, high-speed, wideband wireless communication link in a manner that is associated with simpler design and operation, mechanical integrity, and reduced power consumption, compared to alternative solutions.

Abstract: Systems, devices, and methods related to dual linear polarized wideband antennas for compact antenna arrangements are provided. An example antenna structure includes a multi-layered printed circuit board (PCB); a folded magnetoelectric antenna element including a first portion disposed on a first layer of the multi-layered PCB and a first fold portion contiguous to the first portion and extending to at least a second layer of the multi-layered PCB; and a patch antenna element disposed on a third layer of the multi-layered PCB, wherein the first, second, and third layers are separate layers of the multi-layered PCB. The antenna structure further includes a first feeding port electrically coupled to the patch antenna element, and a second feeding port electrically coupled to the patch antenna element, where the first and second feeding ports are associated with different polarizations.

Abstract: Systems, devices, and methods related to dual wideband antennas with arbitrary frequency ranges are provided. An example antenna structure includes a high-band patch antenna to wirelessly communicate a first signal in a first frequency band; a low-band patch antenna to wirelessly communicate a second signal in a second frequency band lower than the first frequency band, wherein the low-band patch antenna is stacked vertically below the high-band patch antenna and spaced apart from the high-band patch antenna by a dielectric substrate; a high-band excitation via electrically coupled to the high-band patch antenna; and a low-band excitation via electrically coupled to the low-band patch antenna, wherein the high-band excitation via is separate from the low-band excitation via.

Abstract: Radio Frequency (RF) systems configured to implement full-duplex wireless data transfer for rotary joints are disclosed. An example RF system includes a 60 GHz short distance communication link implemented using elliptically (e.g., circularly) polarized antennas. Such a system may provide a mm-wave, high-speed, wideband wireless communication link in a manner that is associated with simpler design and operation, mechanical integrity, and reduced power consumption, compared to alternative solutions.

Abstract: Different approaches that aim to extend scan range of phased array antennas by means of altering surface waves and/or altering the coupling are disclosed. One approach includes providing a phased array antenna where a surface of a substrate that houses antenna elements of the array includes openings such as trenches or grooves. Such openings in the surface effectively reduce the dielectric constant of the substrate, are easy to manufacture, and may reduce or eliminate the need to use exotic and expensive low-k dielectric materials. Another approach includes providing a phased array antenna where antenna elements are disposed over a substrate in the form of surface mount (SMT) components that are reduced in size/footprint. Using SMT antenna elements with a reduced size allows achieving the same gain while spacing antenna elements farther apart with gaps in between the antenna elements, thus also reducing the overall dielectric constant of the substrate.

Abstract: RF systems configured to implement full-duplex wireless data transfer for rotary joints are disclosed. An example RF system includes a 60 GHz short distance communication link implemented using elliptically (e.g., circularly) polarized antennas. Such a system may provide a mm-wave, high-speed, wideband wireless communication link in a manner that is associated with simpler design and operation, mechanical integrity, and reduced power consumption, compared to alternative solutions.