Abstract: A coplanar waveguide (CPW) apparatus comprises a substrate having a first surface and an opposing second surface. The substrate comprises a metal layer proximate to the first surface. The metal layer comprises a conductive trace comprising a signal line coupled to a launcher element at a first end of the signal line, and a ground plane co-planar with the conductive trace. The ground plane defines a substantially rectangular first region surrounding the launcher element and defining a second region surrounding the signal line, the first and second regions substantially devoid of conductive material. The launcher element has a substantially rectangular shape with a width greater than a width of the signal line at the first end.

Abstract: A sub-frame is generated for each MSDU to be aggregated in an A-MSDU and the sub-frame is stored in place in memory. For each sub-frame, an MSDU descriptor identifying the memory location of the sub-frame is stored in a queue. When a transmit opportunity for an MPDU arises, a DMA engine sequentially transfers the components of sub-frames stored in memory to a PHY layer using a list or other sequence of DMA descriptors obtained from at least a subset of the MSDU descriptors. Thus, these MSDU descriptors allow the aggregation of A-MSDUs to be initiated while the MSDUs are in place in the same memory in which they were initially stored.

Abstract: An IC package includes an IC die disposed at a first surface of a substrate, which includes a signal via extending between first and second metal layers. The first metal layer is proximate to the first surface and includes a first coplanar waveguide. The first coplanar waveguide has a first signal line coupling a die bump to the signal via and has a first ground plane co-planar with the first signal line. The second metal layer is proximate to a second surface and includes a second coplanar waveguide that has a second signal line coupling the signal via to a launcher element and has a second ground plane co-planar with the second signal line. The IC package further includes a waveguide channel aperture comprising a region surrounding the launcher element and which is substantially devoid of conductive material and a via fence disposed at a perimeter of the first region.

Abstract: An antenna apparatus includes a waveguide adapter plate for mounting an antenna flange and an RF system-in-package or other IC package. The waveguide adapter plate comprises a first surface and an opposing second surface and a waveguide flange interface. The waveguide flange interface comprises a waveguide channel section extending between the first surface and the second surface and a set of flange mounting holes extending from the first surface to the second surface. The waveguide adapter plate further includes a plurality of substrate alignment pins extending substantially perpendicular from the second surface.

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: 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 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.