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| Number | Title | Issue Date |
| 7796093 | Helicopter transportable antenna mast and stay cable system An antenna mast system includes an antenna mast and a plurality of circumferentially spaced apart upper cable tensioning arms each coupled at one end proximate the top of the mast. A plurality of circumferentially spaced apart lower cable tensioning arms are each co... | 09/14/2010 |
| 7755562 | RF transparent barrier A pre-engineered, packaged RF transparent barrier for non-penetrating installation on a roof, ground, or other surface can be pre-fabricated in different heights and or widths such that customizable barriers can be implemented without manufacturing costs typical of ... | 07/13/2010 |
| 7642987 | Monopole tower system A monopole tower system including nested or telescoping tower structures which may be erected utilizing hydraulic cylinders instead of cranes. ... | 01/05/2010 |
| 7432875 | System for attaching the mast of an antenna to a support post A system (10) for attaching a mast (11) of an antenna to a support post (12) includes a base plate (13) connected to the post (12), and a bracket plate (14) carrying the mast (11) and tiltably mounted to the base plat... | 10/07/2008 |
| 7417597 | GPS antenna systems and methods with vertically-steerable null for interference suppression Ground based GPS antennas for differential applications may be subject to intentional or other interference signals incident at low elevation angles. Described GPS antenna systems are usable to provide an antenna pattern having a vertically-steerable null. An array ... | 08/26/2008 |
| 7286100 | Adjustable antenna apparatus and method An adjustable antenna apparatus and method includes an antenna wire control device for controlling the release and retrieval of antenna wire. Antenna wire is attached to the antenna wire control device and an antenna wire tensioning device is attached to the antenna... | 10/23/2007 |
| 7209094 | Genetically optimized digital ionospheric sounding system (DISS) transmit antenna The Genetically Optimized Digital Ionospheric Sounding System (DISS) Transmit Antenna is a low-cost modification to the TCI 613F HF communications antenna that increases and stabilizes vertical gain from 4 to 30 MHz. Genetic algorithm and local search techniques wer... | 04/24/2007 |
| 7180471 | Antenna alignment system and method A system and method of aligning an antenna with a predetermined azimuth direction. The method includes determining an antenna azimuth direction and moving the antenna from the antenna azimuth direction towards a predetermined azimuth direction so as to align said an... | 02/20/2007 |
| 7116282 | Tower reinforcement A device and method of reinforcement for towers, such as those used for electrical communications and telephonic devices, is provided. Elongated stiffening members are provided for indirect attachment to a tower by means of spacer elements. The spacer elements, whic... | 10/03/2006 |
| 7109946 | Hectometric wave transmission antenna To avoid searching for a new location for very high hectometric wave antennas, an antenna according to the invention comprises an existing vertical structure having a height of at least approximately ten meters and including at least one electrically conductive elem... | 09/19/2006 |
| 7086207 | Antenna sector frame An antenna sector frame that can collapse for easy transport and storage. The antenna frame can be packaged with all of its loose parts in a single container on a relatively flat single skid capable of being stacked in storage. The antenna frame can include a pair o... | 08/08/2006 |
| 7061438 | Radio-control antenna support arm for lifting machinery The invention relates to radio-control of lifting machinery, and is intended to solve problems due to the presence of interfering metal masses. For this purpose, the support arm of the radio-control antenna is mounted such that it is able to be orientated about a ve... | 06/13/2006 |
| 7061441 | Stripline fed stub-loop doublet antenna system and method A stub-loop based antenna doublet array having an offset feed and adjustably positioned stub-loops is provided that enables improved isolation of the horizontal versus vertical polarization characteristics from the impedance. Consequently, conventional VSWR adjustme... | 06/13/2006 |
| 7036734 | Free standing column-shaped structure for housing RFID antennas and readers An RFID system is provided, which includes one or more radio frequency antennas and a generally column-shaped structure. The generally column-shaped structure supports the antenna(s) therein. The structure may include a base portion, a frame portion, one ore more pa... | 05/02/2006 |
| 7027008 | Antenna ground system An antenna system includes an electrical grounding system for a low power radio transmitter of a traveler's information station. The antenna system includes an elongated metal tube having a lower portion configured to be received in the ground and an upper portion a... | 04/11/2006 |
| 7023400 | Antenna system An antenna system that includes a directional antenna designed to reduce the occurrence of side lobes, thus reducing the possibility of interference with other radio frequencies is disclosed. The directional antenna includes an antenna member and a reflecting tube. ... | 04/04/2006 |
| 7015865 | Media with controllable refractive properties An apparatus includes a 3D array of circuit elements and control lines for coupling a remote control device to the circuit elements in the array. Each circuit element is configured to transform from one circuit state to another circuit state in response to a change ... | 03/21/2006 |
| 7015872 | Mast assembly An antenna installation having a tower including supporting a mast supported adjacent its upper end and in turn being supported adjacent its lower end by a first hinge mechanism for pivotal movement about a first horizontally disposed hinge axis between a generally ... | 03/21/2006 |
| 6977618 | Aircraft folding antenna assembly An aircraft radio antenna assembly including a mast; an omni-directional antenna connected to a first end of the mast; and a pivot and movable latch connection system at a second end of the mast. When the pivot and latch connection system is attached to an aircraft,... | 12/20/2005 |
| 6961027 | Feed system and method for interleaving a branch feed antenna with an existing series feed antenna within the same aperture centerline An antenna system for an interleaved branch fed antenna is provided, wherein the interleaved branch fed antenna shares the same centerline as a series fed antenna. The antenna systems are easily fed while preserving similar coverage and maintaining similar aperture ... | 11/01/2005 |
| 6956539 | Multiple antenna configuration and support structure A mounting configuration for a plurality of broadcast antennas that enables location of each antenna above the top of a support structure. Antenna spacing greater than the cross section of the support structure is obtained by mounting the antennas at either end of s... | 10/18/2005 |
| 6930649 | Log-periodic dipole antenna A log-periodic dipole antenna (10) includes a boom (12) which through insulator blocks (15) carries a plurality of elements (13) consisting of element halves (13A, 13B) which extend in opposite directions from the boom (1... | 08/16/2005 |
| 6907706 | Tower for wind power installations A tower (1) for wind power installations, on which at least one rotor (2) that can be driven by wind can be rotatably supported, has an especially low mass relative to its load-bearing capacity, stability, and rigidity, if it has a tower portion (3 | 06/21/2005 |
| 6903705 | Radio broadcasting device and relay tower therefor A tower for a wireless transmission device including at least one shaft extending upwardly between top and bottom portions, transverse spars extending outwardly from the shaft, at least one brace connected to at least one of the spars and extending between the top a... | 06/07/2005 |
| 6897828 | Antenna alignment system A method of aligning an antenna within a predetermined azimuth direction, in which the antenna is hingeably connected to a support. In response to processed positioning data received by a first global positioning system receiver dish from a global positioning satell... | 05/24/2005 |
| 6873300 | Antenna system utilizing elevated, resonant, radial wires An antenna system is presented including an electrically conductive radiating mast that extends generally vertical relative to earth ground. The mast has a lower end for receiving RF energy for radiation thereby at an operating RF frequency and an upper end. A plura... | 03/29/2005 |
| 6795036 | Mast for a source of electromagnetic waves, provided with a stabilization device Mast for a source of electromagnetic waves, comprising a number of peripheral rods (1) extending in vertical direction, the peripheral rods being mutually connected by transverse rods (2), and forming a space for accommodating the electromagnetic wave ... | 09/21/2004 |
| 6781558 | Antenna mast and method An antenna mast is disclosed that has N faces, N corners that are intermediate adjacent faces, and N fins that each include a plurality of bars that extend between a first side and a second side of each fin in a direction opposite to an adjacent one of the plurality... | 08/24/2004 |
| 6771228 | Insulator to attach an antenna element to an antenna boom An antenna (10) includes a boom (12) which through insulator blocks (15) carries a plurality of elements (13) consisting of element halves (13A, 13B) which extend in opposite directions from the boom (12). The insulat... | 08/03/2004 |
| 6756949 | Wideband cavity-backed antenna An antenna system is disclosed that includes a mast, waveguides positioned about the mast, and a feed system positioned external to the mast and between adjacent waveguides, such the feed system can be easily serviced. The waveguides include spherical radiator eleme... | 06/29/2004 |
| 6587699 | Narrow beamwidth communication link with alignment camera Equipment and methods for aligning the antennas of two transceivers of a point-to-point wireless millimeter wave communications link and keeping them aligned. Each of two communicating antennas is equipped with a telescopic camera connected to a processor... | 07/01/2003 |
| 6583763 | Antenna structure and installation A distributed antenna array includes a plurality of antenna elements and a plurality of power amplifiers, each power amplifier being operatively coupled with one of the antenna elements and mounted closely adjacent to the associated antenna element, such ... | 06/24/2003 |
| 6557312 | Prefabricated-building tower foundation An easily-constructed foundation for an antenna support tower is provided that requires no fabricated support surface at the installation site. The foundation is a radial array of prefabricated buildings connected near their inner corners to each other. I... | 05/06/2003 |
| 6513299 | Antenna support An antenna support for a power transmission tower having a vertically disposed mast extending upwardly through the tower with the antenna support being mounted on the upper end of the mast. The weight of antenna support is transferred to the legs of the t... | 02/04/2003 |
| 6480168 | Compact multi-band direction-finding antenna system An compact and rugged antenna system particularly suited to direction finding includes a plurality of antenna arrays for receiving respective frequency bands and colocated on a mast with separation between antenna arrays along the mast. The mast includes ... | 11/12/2002 |
| 6480172 | Adjustable antenna mounting apparatus An apparatus and method for rigidly supporting an antenna mast or other object relative to a structure in a desired position. The apparatus may comprise a first bracket that is affixable to the structure and a second bracket that is slidably affixed to th... | 11/12/2002 |
| 6462717 | Enclosure for microwave radio transceiver with integral refractive antenna An all-weather housing for outdoor microwave radio nodes arranged in a network, each node capable of directing or receiving a beam of microwave energy in a selected direction, the housing including a shroud enclosing a transceiver, antenna, switches, and ... | 10/08/2002 |
| 6335709 | Integrated service tower A service tower integrates a water tank and an antenna mast into a single structure. The integrated tower structure has a bottom tank for holding water, a top member for mounting the antenna, and a middle transitional section that connects the larger diam... | 01/01/2002 |
| 6266026 | Multiple band antenna An antenna system characterized by decoupling the antenna mast for multiple bands by use of a quarter wave decoupling stub or by the use of a frequency relative trap. As a result the antenna has multiple resonances simultaneously. The foregoing also can b... | 07/24/2001 |
| 6249261 | Polymer, composite, direction-finding antenna A direction-finding antenna constructed from polymer composite materials which are electrically conductive is shown with the polymer composite materials replacing traditional metal materials. An inherent advantage of replacing metal materials is significa... | 06/19/2001 |
