Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8081128 | Antenna device and wireless communication apparatus A multi-resonant antenna device having good VSWR characteristics even in the UWB band, and a wireless communication apparatus including the antenna device are provided. The antenna device includes a substrate, an antenna main body surface-mounted at a corner of the ... | 12/20/2011 |
| 8081127 | Electronic device, antenna thereof, and method of forming the antenna The antenna of the invention includes a transceiver unit and a dielectric unit. The transceiver unit has a ground portion, a radial portion, a conductive portion and a feed portion. The ground portion and the radial portion are disposed apart in parallel, so as to f... | 12/20/2011 |
| 8063839 | Tunable antenna system A technique for tuning an antenna may include one or more of the following: working against a ground plane, utilizing the third dimension by alternating layers on a substrate, integrating an inductive short stub in the substrate to improve port matching, and making ... | 11/22/2011 |
| 8018389 | Methods and apparatus for improving the performance of an electronic device having one or more antennas An electronic device comprising a first conductive unit and a second conductive unit disposed such that a gap exists between the first component and the second component. The electronic device further includes one or more components disposed along the gap and config... | 09/13/2011 |
| 7994995 | Transponder tuning method and a transponder Tuning an antenna circuit that includes an inductance of a resonance circuit, and a component having a component impedance. The antenna circuit includes multiple connection areas for connecting the component to the antenna circuit At least two of the multiple of con... | 08/09/2011 |
| 7965249 | Reconfigurable radio frequency (RF) surface with optical bias for RF antenna and RF circuit applications The present invention is a Radio Frequency (RF) apparatus. The RF apparatus may include a layer of photoconductive material. The RF apparatus may further include a plurality of conductive patches which are disposed within the layer of photoconductive material. The R... | 06/21/2011 |
| 7940226 | Surface-mount antenna and antenna device A ground electrode is formed on the lower surface of a ferroelectric substrate, a control electrode including capacitor electrodes and an inductor electrode is formed on the upper surface of the ferroelectric substrate, and an upper-surface radiating electrode and a... | 05/10/2011 |
| 7928918 | Adjusting resonance frequency by adjusting distributed inter-turn capacity The invention concerns a method for adjusting frequency tuning of a resonant circuit with turns having a regular spacing generating stray inter-turn capacity. The adjusting of the frequency tuning of the resonant circuit is performed, at the level of the stray inter... | 04/19/2011 |
| 7911402 | Antenna and method for steering antenna beam direction An antenna comprising an IMD element, and one or more parasitic and active tuning elements is disclosed. The IMD element, when used in combination with the active tuning and parasitic elements, allows antenna operation at multiple resonant frequencies. In addition, ... | 03/22/2011 |
| 7859474 | Active antenna tuning circuitry The present invention is a tunable multi-element network for providing impedance transformation. The network may include a first switched capacitor power load modulator circuit and a second switched capacitor power load modulator circuit. The network may further inc... | 12/28/2010 |
| 7843397 | Tuning improvements in “inverted-L” planar antennas A communications apparatus, includes a housing (40) containing a printed circuit board (PCB) (12) having a ground plane (16) and electronic components in rf shields (18) thereon. A planar antenna (10) is mounted spaced from the gro... | 11/30/2010 |
| 7834813 | Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness An antenna for a communications device having configurable elements controlled to modify an antenna impedance and/or an antenna resonant frequency to improve performance of the communications device. The antenna impedance is controlled to substantially match to an o... | 11/16/2010 |
| 7821466 | Normally open and normally closed RF MEMS switches in a mobile computing device and corresponding method A mobile computing device and corresponding method are disclosed. The mobile computing device includes an RF MEMS switch circuit including at least one normally open RF MEMS switch and a normally closed RF MEMS switch and a controller connected to the RF MEMS switch... | 10/26/2010 |
| 7821467 | Tunable antenna module with frequency correction circuit and manufacturing method thereof A tunable antenna module with frequency correction circuit having an antenna element, a variable capacity means connected to the antenna element, and a frequency control source that generates a controlling voltage for varying the capacity of the variable capacity me... | 10/26/2010 |
| 7782264 | Systems and methods for providing distributed load monopole antenna systems A distributed load monopole antenna system is disclosed that includes a monopole antenna including a radiation resistance unit, a current enhancing unit, and a conductive mid-section. The radiation resistance unit is coupled to a transmitter base and the radiation r... | 08/24/2010 |
| 7760152 | Antenna system and a method in connection with an antenna The invention relates to an antenna system that includes transmitter component (1, 2, 3, 4), a reception component (4, 3, 10, 11, 12), and an antenna (5) connected to the transmitter and reception components. According to the invention, the ante... | 07/20/2010 |
| 7746282 | Compact top-loaded, tunable fractal antenna systems for efficient ultrabroadband aircraft operation Compact top-loaded, fractal monopole antenna system embodiments are provided for multi-band airborne operation over ultrabroadband ranges (e.g., 30 to 2000 MHz). These multi-band embodiments are self-contained, aerodynamic and compact (e.g., blade height less than 9... | 06/29/2010 |
| 7667659 | Antenna system for receiving digital video broadcast signals An antenna system operative with a communications device for receiving a radio frequency signal, wherein the communications device produces a first control signal representing a frequency of a received signal. The antenna system comprises an antenna structure for re... | 02/23/2010 |
| 7616163 | Multiband tunable antenna One embodiment of the invention relates to an antenna providing a tunable resonant frequency within a low frequency band and further providing a high resonant frequency, the antenna comprises a first radiating structure of a first effective electrical length, a seco... | 11/10/2009 |
| 7602346 | Antenna module, radio device and mobile radio terminal An antenna module formed with an integrated multilayer substrate having: an antenna with a transmission line; a tuned circuit with a variable capacitance means; a low noise amplifier; and a wave-shaping circuit. The variable capacitance means in the tuned circuit co... | 10/13/2009 |
| 7592961 | Self-tuning radio frequency identification antenna system A self-tuning antenna that automatically adjusts its input impedance to compensate for externally induced impedance variations is provided. A variable impedance is adjusted by a control circuit to reconfigure the input impedance of than antenna to compensate for dif... | 09/22/2009 |
| 7570220 | Resonant circuit tuning system with dynamic impedance matching A resonant circuit tuning system and a method for tuning are provided. The resonant circuit tuning system may include a resonant circuit having a first capacitive element in series between a transmitter and an antenna coil and a second capacitive element in parallel... | 08/04/2009 |
| 7403165 | Mobile wireless communications device comprising non-planar internal antenna without ground plane overlap A mobile wireless communications device may include a housing, a main dielectric substrate carried by the housing, circuitry carried by the main dielectric substrate, and a ground plane conductor on the main dielectric substrate. The mobile wireless communications d... | 07/22/2008 |
| 7391386 | Array antenna control device and array antenna device An array antenna apparatus (100) includes a radiating element (A0) for receiving a transmitted radio signal, two parasitic elements (A1, A2), and two variable reactance elements (12-1, 12-2) connected to the respectiv... | 06/24/2008 |
| 7391380 | Telecommunication antenna A telecommunication device has a permanently mounted antenna tuned to a predetermined resonant frequency and a housing formed of a plurality of parts one of which is removable. The one removable part, which may be an original element or an aftermarket add-on, change... | 06/24/2008 |
| 7382324 | Recording/playback apparatus with electric wave transmission A recording/playback apparatus accommodates a recording medium in a cassette shell and performs recording and/or playback with respect to the recording medium cassette provided with a cassette-side antenna connected to an in-cassette memory. The playback apparatus i... | 06/03/2008 |
| 7375694 | Antenna capable of micro-tuning and macro tuning for wireless terminal Disclosed is an antenna capable of micro-tuning and macro-tuning for a wireless terminal, comprising: a radiator radiating electromagnetic waves; a ground connected to the radiator; at least one switching element positioned at a lengthwise region of the radiator, fo... | 05/20/2008 |
| 7375695 | Antenna and wireless communication device An antenna and a wireless communication device are adapted to have a plurality of resonant frequencies changed simultaneously by a desired range at a low voltage. The antenna includes a first antenna section and a second antenna section. The first antenna section in... | 05/20/2008 |
| 7372406 | Antenna apparatus including inverted-F antenna having variable resonance frequency An inverted-F antenna has at least two antenna conductive elements coupled in series via at least one switch. An antenna apparatus includes control means for controlling the at least one switch. ... | 05/13/2008 |
| 7372414 | Apparatus for emission and/or reception of electromagnetic waves for aerodynes This invention relates to an apparatus for emission and/or reception of electromagnetic waves for aerodynes, characterised in that it comprises a blade antenna on the top of the fuselage of the aerodyne, a principal reflect-array arranged horizontally at the bottom ... | 05/13/2008 |
| 7369089 | Antenna with multiple-band patch and slot structures A multiple-band antenna having a plurality of operating frequency bands is provided. The antenna includes a plurality of structures configured for operation in respective ones of the plurality of operating frequency bands, and a plurality of structures configured fo... | 05/06/2008 |
| 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 |
| 7339527 | Controllable antenna arrangement An antenna (11) includes a patch antenna element (22) capacitively coupled to a load patch (27). A switch (33) connects the load patch (27) to one of one or more strip lines (35, 37, 40), each of which has a different length... | 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 |
| 7327318 | Ultra wide band flat antenna A flat, ultra wideband, unidirectional antenna is disclosed, the antenna may comprise a pair of active elements having the shape of substantially half-circles or half-ellipsoids made of thin conductive material and a ground element made of thin conductive material p... | 02/05/2008 |
| 7327320 | Broadband antenna arrangement The invention relates to a compact and robust broadband antenna, for the frequency range from about 800 MHz up to 9 GHz, in particular, for use on railways. The antenna includes a monopole antenna element, extending in a longitudinal direction essentially parallel t... | 02/05/2008 |
| 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 |
| 7307591 | Multi-band antenna An antenna having a plurality of resonant frequencies and comprising a feed point, a ground point and a conductive track that extends from the feed point and returns to the ground point and means for locally increasing the reactance of the antenna track at a first p... | 12/11/2007 |
| 7301502 | Antenna arrangement for a cellular communication terminal An antenna arrangement operable to transmit/receive in a first communications band and a second communications band, including a ground plane; a first conductive element for transmitting/receiving; a second conductive element separate from the first conductive eleme... | 11/27/2007 |
| 7301493 | Meta-materials based upon surface coupling phenomena to achieve one-way mirror for various electro-magnetic signals A one-way reflective sensor shield with an increased bandwidth meta-materials coating is provided which substantially reduces or eliminates deleterious electronic signatures and backscattering. The one-way reflective sensor shield with meta-materials coating operate... | 11/27/2007 |
