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| Number | Title | Issue Date |
| 7522118 | Wideband I-shaped monople dipole A wideband -shaped monopole dipole includes a first dipole unit, a second dipole unit, a feed device, a parallel-wire and two double-leads set between two cantilevers of the first dipole unit and the second dipole unit. The parallel-wire connects the first dipole un... | 04/21/2009 |
| 7391385 | Directional antenna An antenna array includes an upper antenna and a lower antenna. Each antenna includes a driver dipole element and a director element horizontally spaced apart approximately one eighth wavelength from the driver dipole element. The driver dipole element is preferably... | 06/24/2008 |
| 7292199 | Antenna apparatus A radiator includes two radiating elements having a shape symmetrical with respect to an axis, and a transmission line portion connecting the tip end portions of these two radiating elements to each other. The radiating element has at least part of outer shape forme... | 11/06/2007 |
| 7286097 | Yagi antenna with balancing tab An antenna minimizes radiation from the outer conductor (44) of a coaxial cable (40) that is coupled to the antenna by providing a balancing tab (90) that lies near the connection (72) of the cable outer conductor (44) to the anten... | 10/23/2007 |
| 7218288 | Antenna that uses four metal conductors An antenna comprising a rectangular reflector; first and second dipole antennae disposed in front of the reflector and aligned parallel to the long edge of the reflector; rod-shaped first metal conductors arranged parallel to the first and second dipole antennae and... | 05/15/2007 |
| 7209091 | Vertically polarized panel antenna system and method A very inexpensive and on-site tunable design for a vertically polarized panel antenna system, suitable for the FCC digital broadcast 700 MHz range is provided. Bowtie-like shaped antennas having machine-stampable planar elements with an adjustable separation are co... | 04/24/2007 |
| 7084830 | Two-port antenna structure for multiple-input multiple-output communications A two-port antenna structure with four arms is provided on a printed circuit board. ... | 08/01/2006 |
| 7064729 | Omni-dualband antenna and system An omnidirectional dual band antenna system includes a radome and an antenna in the radome. The antenna has a linear array of lower frequency band driven elements, a linear array of higher frequency band driven elements and a linear array of parasitic elements, spac... | 06/20/2006 |
| 7042415 | Dual band and broadband flat dipole antenna A dual band and broadband flat dipole antenna comprises a first radiating body, a second radiating body, and a conductivity element. The first radiating body has two first frequency-radiating parts, two second frequency-radiating parts, and a first electrically conn... | 05/09/2006 |
| 7009570 | Phased array antenna absorber and associated methods A phased array antenna includes a substrate, and an array of dipole antenna elements are on the substrate. Each dipole antenna element includes a medial feed portion, and a pair of legs extending outwardly therefrom. Each dipole antenna element further includes a pa... | 03/07/2006 |
| 6965353 | Multiple frequency band antenna and signal receiving system using such antenna A multiple frequency band antenna includes a dipole antenna (4a), which is formed of two dipole antenna elements (8a, 10a). Two extension elements (24a, 26a) extend outward from respective ones of... | 11/15/2005 |
| 6885350 | Microstrip fed log periodic antenna A microstrip fed log periodic antenna has two spaced dipole strips mounted on a ground plane. Each dipole strip has a trunk with a base, tip and alternating arms extending perpendicular to the trunk. One dipole strip includes an integral transmission feed line that ... | 04/26/2005 |
| 6411264 | Two-element driven array with improved tuning and matching A two-element driven array with improved tuning and matching. First and second elongate conductive elements are provided having respective feed point gaps disposed substantially at their centers, the second elongate element being substantially coplanar an... | 06/25/2002 |
| 6346921 | Broadband antenna A broadband antenna having closely spaced dipole antenna elements to form a log-periodic array, arranged normal to a signal feed network having a separate feed line for each of the dipole elements. The length of each feed line is selected to compensate fo... | 02/12/2002 |
| 6121937 | Log-periodic staggered-folded-dipole antenna A folded-dipole antenna element, that is modified so that the two matching conductors are located on opposite sides of the main conductor. Such staggered folded dipoles are superior for constructing log-periodic antennas, because they allow relatively sma... | 09/19/2000 |
| 6020861 | Elongated antenna An elongated antenna, especially an omnidirectional antenna, has a vertical, elongated rod-like structure with two metal profile elements (10, 20) provided with dipole elements (2) as integral parts thereof. The rod-like structure (1) is surrounded by a t... | 02/01/2000 |
| 5936590 | Antenna system having a plurality of dipole antennas configured from one piece of material An antenna system comprises at least two dipole antennas (6) constituting an antenna module and is placed above and parallel with a common, artificial ground plane (5) in the form of an electrically conducting plate, for instance the bottom of a metal box... | 08/10/1999 |
| 5886672 | Collapsible antenna An antenna which includes a rigid boom and a plurality flexible antenna elements attached to the boom. The antenna elements have curved cross-sections and are made from a material which allows them to resiliently bend upon contacting an object. The antenn... | 03/23/1999 |
| 5767812 | High efficiency, broadband, trapped antenna system The invention provides an efficient, broadband, antenna system for RF communications. The benefits of the invention include: a single integrated system for total band coverage; high system efficiency across the operating band; multiple instantaneous trans... | 06/16/1998 |
| 5724051 | Antenna assembly An antenna assembly having a base plate and at least one integrally formed antenna array mounted thereon, the antenna array having a pair of dipole antennas and an elongated transmission line, one of the dipole antennas being integrally formed with each e... | 03/03/1998 |
| 5521608 | Multibay coplanar direction finding antenna A multiband direction finding antenna comprised of numerous antenna elements, of coplanar location. The antenna elements associated with lower band frequencies are provided with chokes, so that unchoked sections do not exceed one-quarter wavelength of the... | 05/28/1996 |
| 5469181 | Variable horizontal beamwidth antenna having hingeable side reflectors The invention provides a broadband directional antenna having a central reflector plate, a dipole and at least one side reflector panel. The dipole is arranged on the central reflector plate for radiating a radio frequency signal, including a binary feed ... | 11/21/1995 |
| 5319380 | Antenna curtain According to the invention, an antenna curtain, particularly a dipole curtain of an antenna in the decametric wave range is formed of a plurality of cables. Radiators are provided arranged essentially in a vertical plane, defining a radiator plane, in a p... | 06/07/1994 |
| 5274391 | Broadband directional antenna having binary feed network with microstrip transmission line A broadband antenna array, formed of pairs of horizontally-spaced dipoles that are balun-fed, uses an air dielectric microstrip binary-feed network to optimize antenna bandwidth. Each dipole is fed by a three-wire balun which maintains the proper current ... | 12/28/1993 |
| 5153602 | Antenna with symmetrical An antenna of the type comprising a set of distributor circuits made by symmetrical strip line circuit technology, distributing microwave energy to M radiating elements. The symmetrical strip line distribution circuits are placed so that they have at leas... | 10/06/1992 |
| 5081467 | Snap-in antenna element for window shade-type radar A transmit/receive module and RF elements are constructed as a sub-assembly. Notches are formed along the edges of two parallel spaced antenna planes. These notches engage mating notches formed in the element of the sub-assembly thereby retaining the sub-... | 01/14/1992 |
| 4943811 | Dual polarization electromagnetic power reception and conversion system An antenna array for receiving dual polarized electromagnetic waves, comprised of a first thin-film printed circuit rectenna having a plurality of linear half-wavelength dipole antennae oriented in a first direction for receiving a first component of the ... | 07/24/1990 |
| 4668957 | Amorphous glass matrix containing aligned microscopically thin metal conductors The invention comprises a solid material that is an electrical conductor in a single direction which comprises an amorphous glass matrix containing a plurality of microscopically thin metal filaments, all of which are oriented in the direction of conducti... | 05/26/1987 |
| 4609866 | Electrical systems interference locator A portable electrical systems interference detector and locator comprises a circuitry housing box which mounts a two-piece antenna having forward section formed of dielectric material and a metal aft section which mounts both a folded dipole UHF driven an... | 09/02/1986 |
| 3931626 | Staggered tuned TV receiving antenna with integrated UHF-VHF sections A TV antenna having integrated UHF-VHF sections and designed to favorably respond to at least two widely spaced frequencies. The dipoles of the antenna are arranged in a staggered tuned array mounted on a pair of conductive cross-arms. The rearmost dipole... | 01/06/1976 |
