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Patent
Peraso Technologies | Date: 2014-03-18

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.


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.


A wireless receiver automatic gain control system includes: a coarse amplification subsystem that receives and amplifies a carrier-modulated signal; a demodulator that generates a baseband signal from the amplified carrier-modulated signal; a fine amplification subsystem that amplifies the baseband signal; and a controller connected to the amplification subsystems. The controller: obtains a unified gain value for the amplification subsystems; based on the unified gain value, selects (i) one of a plurality of coarse gain values defining a set of coarse gain steps each spanning a plurality of unified gain steps, and (ii) one of a plurality of fine gain values defining a set of fine gain steps each spanning a single unified gain step; and sets (i) the gain of the coarse amplification subsystem to the selected coarse gain value, and (ii) the gain of the fine amplification subsystem to the selected fine gain value.


Patent
Peraso Technologies | Date: 2013-04-25

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.


Patent
Peraso Technologies | Date: 2013-04-25

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.


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.


Patent
Peraso Technologies | Date: 2015-03-09

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.


A wireless receiver automatic gain control system includes: a coarse amplification subsystem that receives and amplifies a carrier-modulated signal; a demodulator that generates a baseband signal from the amplified carrier-modulated signal; a fine amplification subsystem that amplifies the baseband signal; and a controller connected to the amplification subsystems. The controller: obtains a unified gain value for the amplification subsystems; based on the unified gain value, selects (i) one of a plurality of coarse gain values defining a set of coarse gain steps each spanning a plurality of unified gain steps, and (ii) one of a plurality of fine gain values defining a set of fine gain steps each spanning a single unified gain step; and sets (i) the gain of the coarse amplification subsystem to the selected coarse gain value, and (ii) the gain of the fine amplification subsystem to the selected fine gain value.


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.


Patent
Peraso Technologies | Date: 2012-01-25

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.

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