A dual-band antenna suitable for use in a cellular telephone network base station includes two parallel arrays of low-frequency dipole elements disposed on a ground plane, a raised array of high-frequency dipole elements disposed between the two parallel arrays, and at least one beamforming rod disposed between the raised array and the two parallel arrays. The two parallel arrays operatively form symmetric azimuth radiation patterns in a lower range of frequencies. The raised array and the high frequency beamforming rod likewise operatively form symmetric azimuth radiation patterns in a higher range of frequencies. This configuration of dual-band antenna allows reception and transmission of electromagnetic signals in two discrete frequency bands while occupying a compact space.
James Tillery - Woodstock GA, US Donald L. Runyon - Duluth GA, US
Assignee:
EMS Technologies, Inc. - Norcross GA
International Classification:
H01Q021/08
US Classification:
343824, 343853, 343893
Abstract:
A low-cost antenna array and method of manufacturing the array, in a planar form or in a structurally flexible or curved array structure are shown. The antenna array has a plurality of metallic antenna electrical and radiator elements formed on a foam core layer bonded onto a metallic ground layer. The radiator elements preferably are formed on a thin dielectric carrier layer bonded to the foam core layer. The array can include one or more additional dielectric layers, each with a plurality of parasitic radiator elements formed thereon, mounted on top of the electrical elements. Manufacturing the array preferably includes bonding the layers to one another. The electrical and radiator elements are formed, preferably by etching, before the foam core layer is bonded to the ground layer. The additional dielectric layer and the parasitic radiators then are bonded to the already formed electrical elements on the ground layer.
Method And System For Increasing The Isolation Characteristic Of A Crossed Dipole Pair Dual Polarized Antenna
A method and system for increasing an isolation characteristic of a crossed dipole pair, dual polarized antenna can include a feedback system comprising a feedback element for generating a feedback signal in response to a transmitted RF signal produced by each radiating elements of a crossed dipole pair, dual polarized antenna. The feedback element may improve the isolation characteristic of RF signals between two different polarizations. The dimensions and spacing of the feedback element relative to an antenna may provide for optimal feedback signals. The feedback element can have a length, width, and thickness wherein the length and width are usually larger than the thickness dimension. A fastening mechanism of the inventive feedback system for coupling the feedback element to the antenna can include materials that allow for high speed production of antenna arrays using with the feedback system.
A tuneable antenna system and method is disclosed. The system includes a transmission line coupled to an antenna, the transmission line having a movable portion, wherein a first position of the movable portion provides to the transmission line a first path length different from a second path length at a second position of the movable portion and at least first and second tuner, wherein a coupling of the first tuner to the movable portion at the first position presents to the transmission line a first impedance, and wherein a coupling of the second tuner to the movable portion at the second position presents to the transmission line a second impedance different from the first impedance.
James Tillery - Woodstock GA, US James Carson - Sugar Hill GA, US Donald Runyon - Duluth GA, US
Assignee:
EMS Technologies, Inc. - Norcross GA
International Classification:
H01Q 21/26
US Classification:
343797000, 343810000
Abstract:
A communication system can comprise an ordered arrangement or array of two sets, groups, or groups of antenna elements. The system can transmit or receive two bands or ranges of electromagnetic energy, signals, or radiation. The first set of the antenna elements can operate one of the bands, while the second set can operate the other band. The first set of antenna elements can be arranged or disposed to form a line or a column. The second set of antenna elements can be arranged or disposed on opposite sides of the line, with some of those elements on one side of the line and the remainder on the other side. The antenna elements that are on one side of the line can be staggered or longitudinally offset with respect to the antenna elements that are on the opposite side of the line.
Johnson J. H. Wang - Marietta GA James K. Tillery - Woodstock GA
Assignee:
Wang Electro-Opto Corporation - Marietta GA
International Classification:
H01Q 136
US Classification:
343895
Abstract:
Disclosed is a broadband, miniaturized, slow-wave antenna for transmitting and receiving radio frequency (RF) signals. The slow-wave antenna comprises a dielectric substrate with a traveling wave structure mounted on one surface, and a conductive surface member mounted on the opposite surface. The traveling wave structure, for example, is of the broadband planar type such as various types of spirals and includes conductive arms which are coupled to feed lines which are routed through the dielectric substrate and the conductive surface member for connection to a transmitter or receiver. The dielectric substrate is of a predetermined thickness which is, for example, less than 0. 04. lambda. sub. 1, where. lambda. sub. 1 is the free space wavelength of the lowest frequency f. sub.
- Las Vegas NV, US Mark Robert Brandau - Johns Creek GA, US Sigmund Hyunjai Lee - Atlanta GA, US Ian Robert Scott - Duluth GA, US James Ely Tillery - Atlanta GA, US
International Classification:
G07F 17/32 H01H 13/02 G06F 3/02 A63F 13/285
Abstract:
Push-button switches and components thereof, including push-button switch button covers, as well as methods of making the same and gaming machines having such push-button switches, are provided. The push-button switches are low profile and configured for aperture-free mounting, and the button covers are configured to convey information and have improved characteristics.
Mounting Configuration And Method For A Topper Display Of A Gaming Machine
- Las Vegas NV, US James Ely Tillery - Atlanta GA, US
International Classification:
G07F 17/32
Abstract:
A gaming machine has a cabinet, one or more first displays, and a topper mount which supports a topper display above the cabinet and the first display(s). The topper mount may comprise a tower which extends upwardly from the cabinet and arms which extend upwardly from the tower to support the topper display. The topper mount extends behind the topper display while supporting the topper display outwardly in alignment with the first display(s) and directly adjacent to the first display(s). The topper mount may define an internal cable routing path from the topper display into the cabinet.
Name / Title
Company / Classification
Phones & Addresses
James Tillery Principal
Northampton County School District Elementary/Secondary School
479 Willis Hare Rd, Pendleton, NC 27862 2525851900
The Shop-Land Rover Repair Jan 2008 - Oct 2014
Lead Automotive Technician
Ags - American Gaming Systems Jan 2008 - Oct 2014
Mechanical Engineer Ii
Bmw Manufacturing Jan 2013 - May 2013
Intern
Gwinnett Place Ford Feb 2006 - Jan 2008
Ford Master Automotive Technician
World Lincoln/Mercury Jan 2006 - Feb 2006
Automotive Technician
Education:
Georgia Institute of Technology 2011 - 2014
Georgia State University Perimeter College 2008 - 2011
Skills:
Vehicles Autocad Matlab Automotive Manufacturing Chassis Suspension Automobile Automotive Engineering Hev Powertrain Automotive Electronics Automotive Repair Solidworks Labview Ase Master Technician Ford Senior Master Technician 2008 Ase Certified Catia Customer Service
Bladensburg Elementary School Bladensburg MD 1995-1999, William Wirt Middle School Riverdale MD 2000-2001, Buck Lodge Middle School Adelphi MD 2001-2002
Community:
Robert Stanton, Helen Bladen, Lisa Nevius, Gloria Velasco