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| Number | Title | Issue Date |
| 7965253 | Broadband antenna A broadband antenna including an antenna body, a ground plane, and a bandwidth adjustment portion is described. The bandwidth adjustment portion, formed by at least one capacitor, is connected between the antenna body and the ground plane. The bandwidth adjustment p... | 06/21/2011 |
| 7372426 | Antenna device and radio communication apparatus An antenna device includes an antenna main body having at least three electricity feeding points and a feeder circuit for feeding an electrical signal to the antenna main body. The feeder circuit feeds electrical signals different in at least one of amplitude and ph... | 05/13/2008 |
| 7365692 | Wideband omnidirectional antenna for plug and play device A wideband omnidirectional antenna for a plug and play device includes a system ground plane, a radiating element, a feeding element. The radiating element is installed above an edge of the system ground plane and comprises a first sub-radiating element and a second... | 04/29/2008 |
| 7301461 | SOC for integrating micro-antenna An integrating SOC capable of integrating a micro-antenna System on Chip (SOC) of integrating micro-antennas comprises an existing radio frequency model, a circuit board and an antenna element to a package of single SOC. The micro-antenna element is formed by using ... | 11/27/2007 |
| 7286095 | Inverted feed discone antenna and related methods The discone antenna includes a conical antenna element, having an apex, and a disc antenna element adjacent the apex of the conical antenna element. An inverted antenna feed structure, such as a flanged coaxial connector or coaxial cable, is connected to the disc an... | 10/23/2007 |
| 7271771 | Film antenna A film antenna whose antenna characteristics are unaffected by chassis is provided. A recessed groove portion 26 is formed in a ground portion 13 which is attached to a chassis 18. A first radiating element portion 14 is formed from a wal... | 09/18/2007 |
| 7265733 | Planar antenna having a wide operating bandwidth A planar antenna includes a high frequency radiating element, a meandering low frequency radiating element, and an interconnecting element. The low frequency radiating element has an operating bandwidth which is lower than that of the high frequency radiating elemen... | 09/04/2007 |
| 7250919 | Antenna An antenna. The antenna comprises a convex ground unit, a radiating member disposed above the ground unit and a feed member connected to the radiating member. The radiating member comprises a first sub-radiating member and a second sub-radiating member having a feed... | 07/31/2007 |
| 7098854 | Reflect antenna A reflect antenna element having a receive antenna section and a transmit antenna section. Each section has a cavity, a conductive element in registration with the cavity, and a ground plane conductor having a slot. A strip conductor has portions thereof disposed ov... | 08/29/2006 |
| 7065379 | Portable radio terminal equipment having conductor for preventing radiation loss A portable radio terminal where the total length of a terminal body and an antenna is less than ½ wavelength. The terminal equipment includes a conductor connected to a printed circuit board in the terminal body so that an electrical equivalent length is ½ wavelen... | 06/20/2006 |
| 7023397 | Antenna device having a ground plate and a feeding unit extending from the ground plate for a predetermined length and at a predetermined angle A disclosed antenna device includes a plate-like ground plate, and a feeding unit that extends from the ground plate for a predetermined length at a predetermined angle. The feeding unit is constituted by a half-body, which is a body, such as a circular cone, halved... | 04/04/2006 |
| 7015863 | Multi-band, inverted-F antenna with capacitively created resonance, and radio terminal using same Multi-band, Inverted-F Antenna with capacitively created resonance, and radio terminal using same. The present invention creates an additional resonance frequency in a planar-style, inverted-F antenna (PIFA), such as that typically used in mobile radiotelephone or o... | 03/21/2006 |
| 6940458 | Electronic equipment and antenna mounting printed-circuit board A PDA includes a printed-circuit board on which at least one printed antenna pair having two chip-like printed antennas, which receive linearly polarized signals and are disposed along axes orthogonal to each other, is mounted. In each of the printed antennas, an op... | 09/06/2005 |
| 6919859 | Antenna An antenna including a feed network; four or more helical radiating elements, and four or more impedance matching stubs each coupling a respective radiating element to ground in parallel with the feed network. The shunt stubs provide a reactance in parallel with the... | 07/19/2005 |
| 6842141 | Fourpoint antenna Wideband antennas with omnidirectional coverage have both military and commercial applications. In one embodiment, the Planar Inverted Cone Antenna (PICA) is composed of a single flat element vertically mounted above a ground plane. A geometry of Planar Inverted Con... | 01/11/2005 |
| 6819295 | Dual frequency anti-jamming antenna A dual frequency antenna providing nulling of adjacent radio signals. The antenna is formed on a single substrate of dielectric material and features a first antenna for a first frequency on top surface of the substrate mutually coupled to a second antenna formed fo... | 11/16/2004 |
| 6774858 | Tapered, folded monopole antenna A folded monopole antenna uses two vertical monopole antenna elements one of which is tapered and resistively loaded to a ground plane. The tapered vertical monopole antenna element includes a series of operably coupled cylindrical sections that extend from a base e... | 08/10/2004 |
| 6304222 | Radio communications handset antenna arrangements This invention relates to internal antenna arrangements for radio communications handsets. Internal antenna size and shape represents a constraint on handset miniaturisation if good antenna efficiency and bandwidth characteristics are to be maintained. Th... | 10/16/2001 |
| 6288677 | Microstrip patch antenna and method Method and apparatus are provided for a microstrip feeder structure for supplying properly phased signals to each radiator element in a microstrip antenna array that may be utilized for radiating circularly polarized electromagnetic waves. In one disclose... | 09/11/2001 |
| 6239769 | Antenna connector The known antenna connectors for transmitting RF-signals from an outside antenna to a portable telephone includes a connecting cable (8), one end of which is connected to the outside antenna (11) and the second end which is connected with a circuit (4), w... | 05/29/2001 |
| 6127987 | Antenna and manufacturing method therefor An antenna comprising the following members are provided: a first board-shaped dielectric material; a cylindrical member, provided on one face of the first board-shaped dielectric material, in which a part of a side wall may be cut off; plural second boar... | 10/03/2000 |
| 6118379 | Radio frequency identification transponder having a spiral antenna A radio frequency identification (RFID) transponder (tag) includes a spiral over ground plane antenna. The RFID tag includes a RFID circuitry that may be implemented as an RFID tag integrated circuit and may be mounted on one surface of a substrate such a... | 09/12/2000 |
| 6100855 | Ground plane for GPS patch antenna An antenna structure including a ground plane that provides a good front to back ratio while maintaing a small size and which can mechanically be made to fit into tight areas. The antenna structure may be a GPS patch antenna, or any other antenna adapted ... | 08/08/2000 |
| 6014107 | Dual orthogonal near vertical incidence skywave antenna A dual orthogonal inverted L near vertical incidence skywave antenna incls two orthogonal RF loop elements coupled to a ground plane. The first RF loop element is mounted in a first plane and has first feed and ground nodes. The second RF loop element is... | 01/11/2000 |
| 5826328 | Method of making a thin radio frequency transponder Manufacturing of a novel thin and flexible radio frequency (RF) tag with a stamped metal leadframe antenna is disclosed. The tag is made by transporting a leadframe strip having leadframe antenna "cutouts" to a point where a chip is mechanically and elect... | 10/27/1998 |
| 5796369 | High efficiency compact antenna assembly A High Efficiency Compact Antenna Assembly for use as a vertical antenna, used for the radiation and reception of various band length signals. The antenna assembly includes an assembly such that operation of the antenna is as efficient as antennae of much... | 08/18/1998 |
| 5483246 | Omnidirectional edge fed transmission line antenna An omnidirectional antenna (100) includes a resonator (102) and a ground plane (104). The resonator (102) includes a dielectric substrate (402) having a top conductive plate (404) and a bottom conductive plate (406), wherein the top conductive plate (404)... | 01/09/1996 |
| 5184143 | Low profile antenna A low profile antenna includes a rectangular driven element and a rectangular ground plate spaced from the driven element. A coaxial transmission has its center conductor connected to an end of the driven element and its ground connection connected to the... | 02/02/1993 |
| 4665460 | Device for protecting overhead electroconducting lines against lightning A lightning protector for overhead electric lines comprises at least one of the following elements: a spark-arrester (111,112) a ground lead and a device for the connection of electric cables. Measures for reducing the impedance of the elements forming th... | 05/12/1987 |
| 4652888 | Miniature tactical HF antenna An improved miniature antenna is disclosed which provides an electrically short radiation pattern by providing shielding of selected portions of a current carrying conductor forming a loop antenna. The shielding is provided so that the shielded portion of... | 03/24/1987 |
| 4584582 | Multi-mode direction finding antenna An antenna having more than four elements positioned in a predetermined regular pattern with equal angles between adjacent elements and a mode former connected to the elements to shift signals from the elements by first equal electrical angles and superim... | 04/22/1986 |
| 4571595 | Dual band transceiver antenna A dual band antenna for a radio transceiver includes an inductively loaded conductor of a predetermined length with feedpoint located substantially central of the conductor. Radiator elements terminate the ends of the conductor and a ground plane terminat... | 02/18/1986 |
| 4516127 | Three element low profile antenna A low profile antenna is provided which includes a counterpoise above which are situated three parallel oriented L-shaped elements. Each of the elements includes leg and foot portions. One common end of the leg portions of the elements are electrically co... | 05/07/1985 |
| 4511900 | Current enhanced monopole radiation type antenna apparatus A high current low impedance antenna having an electrically short monopole radiation pattern is provided by shielding at least one of the segments or legs of a loop antenna so that the shielded leg has no cancelation effects and thereby produces the unifo... | 04/16/1985 |
| 4510500 | Aircraft shorted loop antenna with impedance matching and amplification at feed point An active antenna system for an airborne high frequency single sideband receiver comprised of a shorted loop type antenna having an inductive characteristic over the frequency range of 2.0 to 10.0 MHz and which is tuned to resonance at a selected operatin... | 04/09/1985 |
| 4494120 | Two element low profile antenna An antenna is provided which exhibits a low profile. The antenna includes a counterpoise of electrically conductive material and a passive element oriented substantially parallel thereto. The ends of the passive element are electrically coupled to the cou... | 01/15/1985 |
| 4491849 | Radio antenna There is provided a new and useful radio antenna comprising a mast; a pair of radiating elements mounted on the mast, and being oriented in a plane, and having one end of one element adjacent to one end of the second element; a coaxial feeder the outer co... | 01/01/1985 |
| 4343001 | Digitally tuned electrically small antenna An antenna system suitable for airborne use is disclosed. The system is of the type having a blade forming a folded monopole antenna with one terminal serving as a radio frequency input and a second terminal connectable to tuning apparatus. Tuning compone... | 08/03/1982 |
| 4317121 | Conformal HF loop antenna A flush-mounted HF (2 to 30 megahertz) transmitting and receiving antenna is developed which is especially suitable for installation on a Jeep (CJ7) type vehicle. This antenna is formed by bonding a copper strip to the inside surface of the non-metallic t... | 02/23/1982 |
| 4217591 | High frequency roll-bar loop antenna A vehicular mounted loop antenna which operates as an NVIS radio communicon antenna over one range of frequencies and as a vertically polarized whip antenna over another range of frequencies corresponding to the frequency range of a radio communication s... | 08/12/1980 |
