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| Number | Title | Issue Date |
| 7969373 | UHF/VHF planar antenna device, notably for portable electronic equipment A planar antenna device (AD) for a TV receiver (R) comprises i) a loop antenna (LA) comprising first (E1) and second (E2) ends spaced one from the other, ii) a tuning means (TM) connected to the first (E1) and second (E2) ends of the loop... | 06/28/2011 |
| 7411559 | Headset loop antenna A headset has a first and an optional second earpiece 12, 16 respectively coupled to a plug 30 via first and an optional second conductors 14, 20, 18, 22. An antenna loop section 36 has a first loop section 31 at least partially bo... | 08/12/2008 |
| 7362285 | Compact radio frequency transmitting and receiving antenna and control device employing same A compact antenna for use in a device for controlling the power delivered to an electric load and operable to transmit or receive radio frequency signals at a specified frequency is presented. The antenna comprises a first loop of conductive material having a capaci... | 04/22/2008 |
| 7353013 | Mobile wireless communications device with polarization diversity wireless local area network (LAN) antenna and related methods A mobile wireless LAN communications device may include a portable, handheld housing, and a wireless LAN transceiver carried by the housing. A polarization diversity wireless LAN antenna may be included for cooperating with the wireless LAN transceiver to communicat... | 04/01/2008 |
| 7339531 | Multi frequency magnetic dipole antenna structures and method of reusing the volume of an antenna Various resonant modes of a multiresonant antenna structure share at least portions of the structure volume. The basic antenna element has a substantially planar structure with a planar conductor and a pair of parallel elongated conductors, each having a first end e... | 03/04/2008 |
| 7333057 | Stacked patch antenna with distributed reactive network proximity feed A stacked patch antenna including a distributed reactive network proximity feed, preferably implemented in a microstrip metallization network, coupled to an active antenna patch element to feed the active antenna patch element to emit a field to parasitically stimul... | 02/19/2008 |
| 7330155 | Antenna system A wireless communication device (600) with an antenna system (602) is disclosed. The antenna system (100) is an internal antenna with broadband characteristics which provides coverage over multiple frequency bands. The antenna system (100... | 02/12/2008 |
| 7315287 | Antenna device having enhanced reception sensitivity in wide bands An antenna device includes a rectangular parallelepiped base member made of a dielectric or magnetic material, a band-shaped first radiation conductor, including a plurality of divided first radiation conductor portions, spirally wound around the base member, a plur... | 01/01/2008 |
| 7307598 | Antenna device having enhanced reception sensitivity in wide bands An antenna device includes a prism-shaped or plate-shaped base member made of a dielectric or magnetic material, band-shaped first and second radiation conductors wound around the base member and connected to each other, and a third radiation conductor wound around ... | 12/11/2007 |
| 7292195 | Energy diversity antenna and system An energy density diversity antenna (EDA) has a least a pair of antenna elements, whose feeding points are connected to outputs of a hybrid coupler configured such that a sum and a difference signal may exist at the feed points of the antenna elements. First reactiv... | 11/06/2007 |
| 7289075 | Planar antenna There are disposed first coupling conductors, which comprise a pair of coupling branch lines 1 and 2 connected to the first antenna conductor 3 and extend inward from the first antenna conductor. The coupling branch lines 1 and 2 h... | 10/30/2007 |
| 7268731 | Multi-band antenna for wireless applications A folded monopole antenna that supports lower and upper frequency bands may be used in CDMA, WLAN, or other wireless communications systems. The folded monopole antenna may be located in a handset next to a vertical ground plane. The folded monopole antenna may be f... | 09/11/2007 |
| 7253779 | Multiple antenna diversity for wireless LAN applications An antenna system comprising a plurality of antennas designed and oriented to provide one or more of radiation pattern, signal polarization and spatial diversity. The various diversity operational characteristics are achieved by using similar antennas physically ori... | 08/07/2007 |
| 7224314 | Device for reflecting electromagnetic radiation A reflectarray utilizes switching devices with non-ideal impedance characteristics to vary the impedance of reflecting elements. The antennas of the reflecting elements are configured as a function of the impedance of the non-ideal switching devices to provide optim... | 05/29/2007 |
| 7215977 | All-in-one modular wireless device The present invention provides a modular designed CompactFlash interface for voice and data applications. The present invention provides the advantages of attachments, such as a keypad, that attach to a PDA and give the PDA the ability to provide a wireless voice ha... | 05/08/2007 |
| 7215293 | High-gain loop antenna A high gain loop antenna comprises a conductor ground plane, a feeding signal line, a radiation element including two matching sections and a conductor loop, and a dielectric element formed between the conductor ground plane and the radiation element. Both matching ... | 05/08/2007 |
| 7209092 | Symmetric, shielded slow wave meander line A standard slow wave meander line having sections of alternating impedance relative to a conductor plate is provided with a top shield connected to the conductor plane for the purpose of lowering the resonant frequency of narrow band antennas and lowering the low fr... | 04/24/2007 |
| 7205947 | Litzendraht loop antenna and associated methods The antenna includes a Litz wire loop having a plurality of individually insulated wires braided together and a plurality of splices therein to define distributed capacitors. A magnetically coupled feed loop is provided within the electrically conductive loop, and a... | 04/17/2007 |
| 7190322 | Meander line antenna coupler and shielded meander line A switched meander line structure is substituted for a lumped element antenna tuner for an order of magnitude increase in gain due to the use of the switched meander line architecture. The use of the meander line with relatively wide and thick folded legs markedly d... | 03/13/2007 |
| 7163155 | ASIC-embedded switchable antenna arrays An antenna design of compact dimensions is provided by incorporating the antenna structure into an integrated circuit or small circuit module. A radiation pattern adjustment mechanism permits dynamic, real-time adjustment of the antenna pattern in response to motion... | 01/16/2007 |
| 7123210 | Loop-type antenna The invention concerns an antenna for use as transmission/reception beacon (2), in a radio frequency identifying system, having a general upturned U configuration, located in a vertical plane, above the ground transversely to a passage (9), the vertica... | 10/17/2006 |
| 7113143 | Loop antenna and radio communication device having the same In a loop antenna of this invention, a plurality of segments are arranged in a loop while overlapping each other at end portions, a dielectric medium is inserted between the overlap portions of the segments to capacitively couple the segments, and a feed circuit is ... | 09/26/2006 |
| 7071889 | Low frequency enhanced frequency selective surface technology and applications DC inductive FSS technology is a printed slow wave structure usable for reduced size resonators in antenna and filter applications of wireless applications. It is a dispersive surface defined in terms of its parallel LC equivalent circuit that enhances the inductanc... | 07/04/2006 |
| 7071887 | Antenna device capable of being tuned in wide band The present invention provides an antenna device capable of automatically obtaining excellent receiving sensitivity over a wide band. The antenna device comprises a rod-shaped base made of a dielectric material or a magnetic material; a stripe-shape radiating conduc... | 07/04/2006 |
| 7053846 | Spherical ring antenna An antenna includes a radiating ring element formed as a spherical sector or about a one-half wavelength circumference in natural resonance for obtaining uniform current distribution and enhancing the gain relative to the size of the antenna. A capacitive element, s... | 05/30/2006 |
| 7034760 | Antenna device and transmitter-receiver using the antenna device An antenna device of transmission line type having two antenna elements opposed to each other, and a signal is fed between the two antenna elements. A variable-capacitance unit capable of changing the electrostatic capacity is provided at one or both of connection p... | 04/25/2006 |
| 7002527 | Variable-directivity antenna and method for controlling antenna directivity A variable-directivity antenna comprises an omnidirectional antenna element, a transmission line connected to the antenna element, and an electric field adjusting structure provided in a boundary region between the antenna element and the transmission line. The elec... | 02/21/2006 |
| 6999037 | Meander-lineless wide bandwidth L-shaped slot line antenna An asymmetric slotted L-shaped antenna is provided with a wide bandwidth in an exceedingly small size with good gain across the entire bandwidth by shorting out one end of the slot and by providing a capacitor at the other end of the slot, with the result that with ... | 02/14/2006 |
| 6995731 | Multiple coil antenna for a tire parameter sensing system with inductively coupled tire-based units An antenna (96) for use in inductive coupling two devices (34 and 42) includes a first coil (180) having a first inductance value, a second coil (190) having a second inductance value, and a capacitor (198) having a capacita... | 02/07/2006 |
| 6996075 | Pre-testing and certification of multiple access codes A system, method and article of manufacture are provided for managing the transmission suitability of a channel in a multi access scheme. In general, information relating to noise associated with a channel is obtained. A potential effect of the noise on a transmissi... | 02/07/2006 |
| 6992630 | Annular ring antenna The antenna includes a substrate, such as a dielectric material, and an electrically conductive circular ring on the substrate and having an outer diameter and an inner diameter concentrically arranged. The outer diameter is less than 1/10 an operating wavelength, a... | 01/31/2006 |
| 6965348 | Broadband antenna structures There is disclosed an antenna exhibiting resonance over a broad frequency band or over a plurality of closely-spaced frequency bands, comprising a ground plane, a non-driven element affixed substantially perpendicular to the ground plane, a driven element affixed su... | 11/15/2005 |
| 6960984 | Methods and systems for reactively compensating magnetic current loops Methods and systems for compensating magnetic current loops provide current magnitude and phase uniformity within the magnetic current loops. A magnetic current loop is divided into k sections. Each of the k sections has a series reactance. Series reactive compensat... | 11/01/2005 |
| 6961024 | Transmitting and receiving apparatus An antenna for transmitting information by means of electromagnetic fields in free space is formed as a supertoroidal conductor, comprising a helical coil of wire with the coil itself being wound helically around a toroidal former to form a toroidally shaped coiled ... | 11/01/2005 |
| 6958735 | Compact and efficient three dimensional antennas A volumetrically compact and efficient antenna, with a high radiation resistance and low losses, that can be designed for any frequency, and which has a gain within 1 dB of that of a full-sized vertical monopole radiator or, in its horizontally polarized form, withi... | 10/25/2005 |
| 6947492 | Encoding and decoding ultra-wideband information A system and a method for encoding and decoding ultra-wideband information are provided. An ultra-wideband transmission is encoded by positioning bipolar pulse pairs. The bipolar pulse pairs assist in detecting errors in the ultra-wideband transmission, before the e... | 09/20/2005 |
| 6937674 | Mapping radio-frequency noise in an ultra-wideband communication system A system and method for mapping radio-frequency (RF) noise, and estimating channel quality in a multi-channel ultra-wideband communication system is provided. One method includes placing a plurality of time bins within a plurality of time frames and assigning a plur... | 08/30/2005 |
| 6924773 | Integrated dual band H-field shielded loop antenna and E-field antenna A dual band antenna system that combines into a single integrated device an H-field shielded loop antenna and an E-field antenna. The system includes an unshielded section bounded on each end by first and second shielded sections, respectively. Input frequency filte... | 08/02/2005 |
| 6919857 | Differential mode capacitively loaded magnetic dipole antenna Differential mode capacitively loaded magnetic dipole designs are provided for usage in various applications. Impedance matching may be accomplished with changes to antenna structures without concomitant changes in resonant frequency. ... | 07/19/2005 |
| 6914577 | System and method for improving antenna pattern with a TE20 mode waveguide An isolation shield improves the F/B ratio for a directional antenna radiating a electromagnetic wave with a wavelength of λXMT with a TE20 mode waveguide. The system includes a directional antenna and a waveguide adapted for attachment to one... | 07/05/2005 |
