Cisco Technology, Inc.

Pctel, Inc.

Stephen V Saliga

Thomas Goss Lutman

Fred Jay Anderson

David McClead Theobold

James Anthony Mass

Sumeet Singh Paul

Robert Charles Meier

Johannes Petrus Kruys

David P Petsko

Erin Patrick McGough

Edward C Kuhar

John Sanelli

Paul Jeffrey Stager

Daniel Neal Johnson

Timothy A Frank

David E Adams

Erin McGough

Scott Lindner

Fritz E Freidinger

David Adams

Erin Mcgough

Thomas Lutman

Systems and methods for selecting a worst service first optimized test path are provided. Such systems and methods can include using previously collected RF results that are relevant to a target building to calculate predictive RF results for a plurality of test points in the target building, using the predictive RF results to calculate the optimized test path through the target building, measuring a respective actual RF signal value of each of the plurality of test points in succession along the optimized test path, counting failing ones of the plurality of test points, and stopping measurements of the respective actual RF signal value of each of the plurality test points when a counted number of the failing ones of the plurality of test points exceeds a failure threshold value.

Systems and methods for selecting a worst service first priority grid test route path

Systems and methods for retrieving RF coverage data for a geographic location and using the RF coverage data for the geographic area to alert a user device are provided. In some embodiments, such systems and methods can include receiving a notification of an emergency event at an emergency dispatch location associated with the geographic location, and pushing the RF coverage data for the geographic location to a first user device or directing the first user device to retrieve the RF coverage data for the geographic location. In some embodiments, such systems and method can include detecting when an ambient location of a second user device indicates proximity to and/or possible or likely entry of the second user device to a portion of the geographic area associated with the RF coverage data that is below a predetermined threshold and, responsive thereto, transmitting an alert to the second user device.

Systems and methods for retrieving specific and adjacent structure network maps in real time

Systems and methods for time coordinating a plurality of RF data collection devices at disparate locations are provided. Such systems and methods can include synchronizing a local time of a first RF data collection device to an initial value of a common time source, generating a timestamp log file documenting a propensity of the local time to deviate from the common time source, collecting and recording a first plurality of RF data from an RF network, and using the timestamp log file to normalize the first plurality of RF data for comparison with a second plurality RF data recorded by a second RF data collection device.

Systems and methods for time coordinating a plurality of RF data collection devices at disparate locations

A fabrication method of a dual-band antenna array. The dual-band antenna array may comprise a trace split, a first frequency branch, and a second frequency branch. The trace split may feed the first frequency branch and the second frequency branch. The first frequency branch may comprise a first frequency branch geometry that may cause a majority of a current of a signal fed into the trace split to feed the second frequency branch when the signal comprises a second frequency. The second frequency branch may comprise a second frequency branch geometry that may cause the majority of the current of the signal fed into the trace split to feed the first frequency branch when the signal comprises a first frequency.

Method of making a dual-band yagi-uda antenna array

A robust, dual-band, omnidirectional antenna is provided. In some embodiments, the antenna can be deployed in a Wi-Fi access point and tuned to operate with high efficiency in a plurality of driving point environments, and in some embodiments, the antenna can be tuned to operate with high efficiency over an impedance bandwidth in excess of 80% with little change to the radiation patterns. The antenna can operate in a TMcircular patch mode in a low frequency band and in a wideband quarter wavelength monopole mode in a high frequency band, and both the TMcircular patch mode and the quarter wavelength monopole mode can radiate a strongly circulating magnetic field that can beget excellent omnidirectional radiation patterns and decouple the antenna from nearby horizontally-polarized antenna elements, thereby allowing the antenna to be collocated with horizontally-polarized elements with little degradation to overall system level performance.

Capacitively-coupled dual-band antenna

A dual-band antenna array may be provided. The dual-band antenna array may comprise a trace split, a first frequency branch, and a second frequency branch. The trace split may feed the first frequency branch and the second frequency branch. The first frequency branch may comprise a first frequency branch geometry that may cause a majority of a current of a signal fed into the trace split to feed the second frequency branch when the signal comprises a second frequency. The second frequency branch may comprise a second frequency branch geometry that may cause the majority of the current of the signal fed into the trace split to feed the first frequency branch when the signal comprises a first frequency.

Dual-band yagi-uda antenna array

Disclosed in an example embodiment herein is a dual mode patch antenna designed to operate in the TM02 mode. The antenna comprising a circular patch antenna configured to operate at a first frequency, and a cylindrical matching element coupled to the circular patch antenna configured to operate at a second frequency. A feed surface is coupled to the cylindrical matching element.

Dual band antenna design

In an example embodiment, an apparatus, comprising a first wireless transceiver, a first directional antenna coupled to the first wireless transceiver, a second wireless transceiver, a second directional antenna coupled to the second wireless transceiver, and control logic coupled to the first wireless transceiver and the second wireless transceiver. The first wireless transceiver and second wireless transceiver can concurrently receive wireless signals that are spatially separated. The first wireless transceiver asserts a signal while communicating with another wireless device. The control logic is configured to prevent the second wireless transceiver from transmitting while the first wireless transceiver is asserting the signal.

Unscheduled protocols for switched antenna arrays

An antenna system is provided. The antenna system includes a ground plane, an antenna, a feed cable, a cable connector, and an antenna connector. The ground plane has a first ground side and a second ground side. The antenna operates on the first ground side of the ground plane. The feed cable has a center conductor that is configured to transmit signals to and receive signals from the antenna. The cable connector couples the feed cable with the second ground side of the ground plane. The center conductor of the feed cable is electrically isolated from the ground plane and electrically coupled with the antenna connector. The antenna connector electrically couples the center conductor with the antenna. The antenna connector is connected to the center conductor and the feed cable is substantially parallel to the ground plane from the antenna connector to the cable connector.

Connection for antennas operating above a ground plane

A system that is operable to adjust operation of a network device is provided. The system includes an identification module that is coupled with an antenna connector that couples the antenna with a network device. The identification module includes an identification characteristic that may be used to determine an antenna characteristic that defines operation of the antenna. The operation of the network device may be adjusted based on the antenna characteristic.

Identification of an antenna

A wireless device is disclosed, including an antenna system comprising one or more antenna elements for sending and receiving a wireless signal. One or more conductive members are included, having an edge displaced from and substantially directed toward the at least one antenna element, and cooperating therewith to establish a multiplicity of hemispherical beam patterns for a wireless signal. Embodiments with a multiplicity of antenna elements exhibit a high degree of isolation between said antenna elements.

Dual hemisphere antenna

An antenna comprising: (a) a conductive ground plane; and (b) a rod shaped monopole element having a conductive surface, oriented out from the ground plane and having a length selected for a first radio frequency band, the monopole element having a current suppressing element conductively attached and surrounding the surface of the monopole element at a location on the monopole element determined by a second frequency band higher than the first frequency band. The rod-shaped monopole element has a relatively wide cross-section such that the antenna is operable over relatively wide ranges of frequencies in one or both of the frequency bands. The antenna is for operation in the 2.4 GHz and the 5 GHz bands as used in the IEEE 802.11standards.

Multi-band antenna

A configurable antenna system and method of implementing is disclosed, having particular use with a wireless access point of the type used with a wireless local area network. The antenna system includes an antenna arrangement for selectively varying between first and second operational positions. In the first operational position, the antenna arrangement operates in an omni-directional antenna mode. In the second operational position, the antenna arrangement operates in a directional antenna mode. A signal reflecting member is further provided for cooperating with the antenna arrangement in the second operational position, to substantially establish the antenna arrangement in a directional configuration.

Growing community of inventors

Akron, OH, United States of America

Stephen V Saliga