Abstract: A method comprises transmitting a transmit signal via a transmit phased array antenna of a radar system, and receiving at least respective first and second receive signals via at least respective first and second sub-arrays of a receive phased array antenna of the radar system. The first sub-array is electronically steered utilizing a first type of squinting and the second sub-array is electronically steered using a second type of squinting. The method further comprises processing the first and second receive signals through respective first and second receive signal paths to generate respective first and second digital receive signals, computing respective first and second sets of range-Doppler information for the respective first and second digital receive signals, determining range and velocity for a target based at least in part on a combination of at least portions of the first and second sets of range-Doppler information, and computing azimuth and elevation angles.

Abstract: A method comprises performing an iterative calibration process in which transmit signals are transmitted via respective different selected subsets of antenna elements of a transmit phased array antenna of a radar system and corresponding amounts of transmit signal energy are monitored in a receive phased array antenna of the radar system to determine impacts of the different selected subsets of antenna elements of the transmit phased array antenna on isolation between the transmit and receive phased array antennas. The method further comprises identifying a particular one of the different selected subsets of the antenna elements of the transmit phased array antenna based at least in part on their relative impacts on the isolation between the transmit and receive phased array antennas, and utilizing the particular identified subset of the antenna elements of the transmit phased array antenna for isolation-enhancing transmit signal cancellation during operation of the radar system.

Abstract: Systems and methods are provided for arranging antennas in an electronic device (200). According to one aspect, the electronic device includes a housing (202) and an antenna arrangement. The antenna arrangement includes a first volume (206) positioned adjacent to an edge (212) of the housing, the first volume enclosing a first antenna structure (230) shaped substantially according to a geometry of the edge; a second volume (208) positioned adjacent to a first corner (216) of an opposing edge (214) of the housing, the second volume including a second antenna structure (232) shaped substantially according to a geometry of the first corner; and a third volume (210) adjacent to a second corner (218) of the opposing edge, the third volume including a third antenna structure (234) shaped substantially according to a geometry of the second corner, wherein the first, second, and third volumes do not overlap and are discontinuous.

Abstract: A method and chipset for tracking a global navigation satellite system (GNSS) within the constraints of an indoor facility. The method includes receiving assistance information on the GNSS on a mobile communication system; and sorting orbiting satellites within the GNSS by elevation angles. Additionally, lower elevation satellites are correlated within the GNSS prior to correlating higher elevation satellites.

Abstract: Systems and methods are provided for an antenna switch module (300) for an electronic device (302) including wireless communication circuitry (308) and an antenna (304) configured to transmit and receive signals over a plurality of frequency bands. The antenna switch module may include a plurality of antenna switches (310, 312) positioned in series and configured to pass signals between the antenna and wireless communication circuitry and to selectively operate in one of the bands. The first antenna switch (310) may include a plurality of pins (314) arranged in a first configuration, and the second antenna switch (312) may include a plurality of pins (316) arranged in a second configuration that is a mirror image of the first configuration. The antenna switch module may further include a plurality of non-overlapping signal paths (318) configured to selectively deliver signals between the antenna switches, each signal path being associated with a respective band.

Abstract: Systems and methods are provided for arranging antennas in an electronic device (200). According to one aspect, the electronic device includes a housing (202) and an antenna arrangement. The antenna arrangement includes a first volume (206) positioned adjacent to an edge (212) of the housing, the first volume enclosing a first antenna structure (230) shaped substantially according to a geometry of the edge; a second volume (208) positioned adjacent to a first corner (216) of an opposing edge (214) of the housing, the second volume including a second antenna structure (232) shaped substantially according to a geometry of the first corner; and a third volume (210) adjacent to a second corner (218) of the opposing edge, the third volume including a third antenna structure (234) shaped substantially according to a geometry of the second corner, wherein the first, second, and third volumes do not overlap and are discontinuous.

Abstract: A method and chipset for tracking a global navigation satellite system (GNSS) within the constraints of an indoor facility. The method includes receiving assistance information on the GNSS on a mobile communication system; and sorting orbiting satellites within the GNSS by elevation angles. Additionally, lower elevation satellites are correlated within the GNSS prior to correlating higher elevation satellites.

Abstract: A wireless device (100) includes a first circuit board (102), a second circuit board (104), and a distributed load (106) having an inductive coupling (112) and a capacitive coupling (114). The inductive coupling (112) and the capacitive coupling (114) form a parallel resonance at predefined frequencies of interest. The second circuit board (104) includes an antenna (116) for receiving and transmitting radio waves.

Abstract: An apparatus and a method for reducing magnetic field in near-field by presenting high impedance at an operating frequency band are disclosed. A conducting element (112), which is suspended substantially parallel to a first side (104) of a printed circuit board (102) of a wireless portable communication device (100) over an electrically grounded conductor (116), forms a reactive element. The reactive element provides high impedance at operating frequencies of the wireless portable communication device and diverts radio frequency currents from the first side of the printed circuit board to the second side of the printed circuit board such that a magnetic field produced by the radio frequency currents on the first side of the printed circuit board is reduced in the near-field.