Abstract: A method and apparatus for group owner (GO) renegotiation are provided. For example, the method and apparatus may be used for GO renegotiation in a wireless personal network (WPAN), for example, a 60-gigahertz (60 GHz) peer-to-peer (P2P) wireless network. The incumbent group owner (e.g., personal base station set (PBSS) control point (PCP)) controls the operation of the group. GO renegotiation can occur, for example, when a newly arriving device (e.g., a prospective group owner) is trying to connect to the PBSS and/or, for example, with PCP rearrangement among members of an existing group. As an example, after the formation of the group, the PCP may want to relinquish the role of being the PCP. A procedure is described for deciding among clients and the PCP which device will assume the role of group owner from the existing PCP in the event the role of group owner is to be reassigned.

Abstract: A microstrip antenna includes a substrate having a first surface and an opposing second surface, a ground plane disposed at the first surface of the dielectric layer, and a conductive layer disposed at the second surface of the substrate. The conductive layer includes a continuous conductive trace comprising a plurality of linear segments arranged in a near-closed polygonal chain. The near-closed polygonal chain can define a truncated square spiral shape. Alternatively, the near-closed polygonal chain can define one of a near-closed pentagonal shape, a near-closed hexagonal shape, a near-closed heptagonal shape, and a near-closed octagonal shape.

Abstract: An apparatus includes an IC package comprising a substrate having a first metal layer, a second metal layer, and a dielectric layer disposed between the first and second metal layers. The IC package further comprises an IC die disposed at a surface of the substrate and comprising RF circuitry. The first metal layer comprises a microstrip feedline extending from a pin of the IC die. The microstrip feedline includes a conductive trace having a probe element at a tip distal from the pin. The first metal layer further comprises a waveguide opening comprising a region surrounding the probe element, the region being substantially devoid of conductive material. The substrate further comprises a plurality of metal vias disposed at the perimeter of the region, the metal vias extending from the first metal layer to the second metal layer.

Abstract: An antenna apparatus comprises a lower assembly and an upper assembly, which together forming a cavity to contain an RF circuit device. The upper assembly comprises a waveguide flange interface at an external surface of the upper assembly. The waveguide flange interface comprises a waveguide channel extending from the external surface to an internal surface forming a surface of the cavity. An opening of the waveguide channel at the internal surface is substantially centered about a first centerline of the upper assembly parallel with the external surface and offset from a second centerline of the upper assembly parallel with the external surface, whereby the second centerline perpendicular is to the first centerline. The upper assembly is removably attachable to the lower assembly in either of a first orientation or a second orientation, whereby the second orientation represents a 180 degree rotation of the upper assembly relative to the first orientation.

Abstract: An antenna apparatus comprises a substrate with a microstrip-to-waveguide transition comprising a microstrip feedline extending between a first terminal point and a second terminal point at a first metal layer and comprising a microstrip element and a probe element. The microstrip element includes a connection segment extending from the first terminal point to a second point, a taper segment extending from the second point to a third point, and a continuous-width segment extending from the third point to a fourth point. The probe element extends from the fourth point to the second terminal point and has a width which is narrower than the continuous-width segment. The substrate further includes a waveguide opening comprising a region surrounding the probe element and includes a plurality of metal vias disposed at the perimeter of the waveguide opening and which extend from the first metal layer to the second metal layer.

Abstract: A voltage controlled oscillator, includes a tank circuit including an inductor having a value L, interconnected with first and second variable capacitors, having values CVAR1 and CVAR2, and a fixed capacitor CFIXED, to cause oscillation of the oscillator at a controlled frequency f osc = ( 2 ? ? ) - 1 ? ( L ? { C VAR ? ? 2 + C FIXED ? C VAR ? ? 1 C FIXED + C VAR ? ? 1 } ) - 1 / 2 CVAR1 controls coarse frequency tuning of the oscillator, and CVAR2 may control fine tuning of the oscillator. The variable capacitors may be formed using accumulation-mode MOS varactors.

Abstract: A radio antenna switch module for a high frequency radio transceiver enables the radio transceiver to have a small number of receivers and transmitters and a larger number of antennas, whereby each antenna has a different diversity characteristic. The diversity between antennas provide for greater communication reliability, while the small number of receivers and transmitters allows the transceiver to operate at relatively low power compared to conventional radio transceivers. The switch module also allows for two loopback modes between the transmitter and the receiver for at-speed, low-cost self-test in production.

Abstract: A microstrip antenna is formed on a multilayer substrate. The microstrip antenna includes a dipole formed of two dipole halves. Each of the dipole halves is formed in one of at least two layers of the multilayer substrate. Optionally, at least one passive reflector is located proximate the dipole in one of the layers, or a third layer of the substrate.

Abstract: A radio antenna switch module for a high frequency radio transceiver enables the radio transceiver to have a small number of receivers and transmitters and a larger number of antennas, whereby each antenna has a different diversity characteristic. The diversity between antennas provide for greater communication reliability, while the small number of receivers and transmitters allows the transceiver to operate at relatively low power compared to conventional radio transceivers. The switch module also allows for two loopback modes between the transmitter and the receiver for at-speed, low-cost self-test in production.