Abstract: A phased array antenna system includes a first radiation element that is made of a material and has a length selected to resonate at a desired frequency. A phase-shift element is coupled to one end of the first radiation element. A second radiation element is coupled to the end of the phase-shift element opposite the first radiation element, so that a radio signal passes through the first radiation element through the phase-shift element and through the second radiation element, the second radiation element is made of a material and has a length selected to resonate such that the first and second radiation elements cooperate to form a desired beam pattern from the antenna system.
Abstract: Method for radio communication in a wireless local area network and transceiving device refers to wireless local area networks (WLAN) consisting of a multitude of transceiving devices of users (14, 15, 16 . . . N). Simultaneous scanning by their antenna beams in different directions by the transceiving devices (with the transceiving devices being in reception mode) and transmission of an omnidirectional signal in the form of calibration signal and data package by one of the transceiving devices of the network (with the transceiving device being in transmission mode), reception of the signal by the transceiving devices operating in reception mode and subsequent orientation of their antenna beams in the direction of signal source. The recognition and orientation is performed during the period of reception of the calibration signal. The Method increases the range of a WLAN, reduces the transmission time and improves quality and reliability of communication.
Type:
Grant
Filed:
October 31, 2002
Date of Patent:
April 16, 2013
Assignee:
Airgain, Inc.
Inventors:
Oleg Yurievich Abramov, Aleksandr Nikolaevich Kirdin, Yury Pavlovich Sukharnikov
Abstract: A phased array antenna system includes a first radiation element that is made of a material and has a length selected to resonate at a desired frequency. A phase-shift element is coupled to one end of the first radiation element. A second radiation element is coupled to the end of the phase-shift element opposite the first radiation element, so that a radio signal passes through the first radiation element through the phase-shift element and through the second radiation element, the second radiation element is made of a material and has a length selected to resonate such that the first and second radiation elements cooperate to form a desired beam pattern from the antenna system.
Abstract: A phased array antenna system includes a first radiation element that is made of a material and has a length selected to resonate at a desired frequency. A phase-shift element is coupled to one end of the first radiation element. A second radiation element is coupled to the end of the phase-shift element opposite the first radiation element, so that a radio signal passes through the first radiation element through the phase-shift element and through the second radiation element, the second radiation element is made of a material and has a length selected to resonate such that the first and second radiation elements cooperate to form a desired beam pattern from the antenna system.
Abstract: A wireless communication device with a plurality of radios and a plurality of configurable antenna systems. Determining a plurality of transmit and receive signal quality metrics for connections between the wireless communication device and a plurality of stations for a plurality of radios and configurable antenna systems in a plurality of configurations. Determining a connection matrix that includes the transmit and receive signal quality. Selecting antenna configurations for the configurable antennas using the connection matrix.
Type:
Grant
Filed:
December 19, 2007
Date of Patent:
August 21, 2012
Assignee:
Airgain, Inc.
Inventors:
Oleg Jurievich Abramov, Pertti Visuri, Randy Salo, Xiao Ping Yang
Abstract: The invention refers to wireless local area networks (WLAN) consisting of a multitude of transceivers capable of establishing communication with one another (i.e. operating in a peer-to-peer mode) under the control of network coordinator (the so-called “ad hoc” networks). Implies the assignment of the role of the temporary coordinator to a transceiver from among the plurality of transceivers, switching-over other transceivers into the mode of a network client, orientation of antenna beam of a transceiver (switched-over into the client mode) equipped with a direction-agile antenna in the direction of the temporary coordinator of the network and transmission of information to an addressee by a client-transceiver of this network that has got the permission to transmit from the temporary coordinator.
Abstract: An access point for wireless transmission of packets to user devices includes an application module and a radio module. If the radio module fails to successfully transmit a packet to a user device, the application module takes the packet from its queue and places it in the radio buffer for retransmission. This greatly increases the speed of retransmission. The application module can obtain information on the success of transmitting the packet directly from the radio module.
Type:
Grant
Filed:
December 31, 2008
Date of Patent:
May 8, 2012
Assignee:
Airgain, Inc.
Inventors:
Pertti Visuri, Randy Salo, Christian van Hamersveld, Robert Frazier
Abstract: A phased array antenna system includes a first radiation element that is made of a material and has a length selected to resonate at a desired frequency. A phase-shift element is coupled to one end of the first radiation element. A second radiation element is coupled to the end of the phase-shift element opposite the first radiation element, so that a radio signal passes through the first radiation element through the phase-shift element and through the second radiation element, the second radiation element is made of a material and has a length selected to resonate such that the first and second radiation elements cooperate to form a desired beam pattern from the antenna system.
Abstract: Systems and methods for a MIMO radio with antenna signal combiners are presented. In one embodiment, a (MIMO) radio system for use in a multi-path environment is described. The system includes a plurality of antenna subsystems, each subsystem comprising two or more antennas and a combiner configured to combine signals received via the two or more antennas in a ratio. The system further includes a radio for each of the plurality of antenna subsystems configured to demodulate the combined signal and a MIMO processor configured to produce a single data stream from the demodulated signals.