"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8400369 | Multiband antenna and radio communication terminal A multiband antenna includes at least two antenna elements for use in a low frequency band and a high frequency band, a feeding point unit configured to be shared by both of the antenna elements for use in the low frequency band and the high frequency band and an im... | 03/19/2013 |
| 8294632 | Antenna interface circuits including tunable impedance matching networks, electronic devices incorporating the same, and methods of tuning antenna interface circuits An antenna interface circuit for a wireless communication device includes a tunable matching circuit that is coupleable to an antenna. The tunable matching circuit includes a variable impedance element having a variable impedance Ztune. The interface circuit further... | 10/23/2012 |
| 8284116 | Antenna apparatus for internal impedance matching An antenna apparatus allows for internal impedance matching by employing an internal matching device therein. The antenna apparatus includes a board body formed of a dielectric material and having a flat structure. The antenna apparatus also includes an antenna devi... | 10/09/2012 |
| 8279133 | Antenna device An antenna device is provided with an antenna element including a base, an inductance adjustment pattern that is formed on the upper surface and a side surface of the base and has a substantially U-shape, a capacitance adjustment pattern that is formed on the upper ... | 10/02/2012 |
| 8228258 | Multi-port antenna A multi-port antenna structure includes a plurality of electrically conductive elements arranged generally symmetrically about a central axis with a gap between adjacent electrically conductive elements. Each of the electrically conductive elements has opposite ends... | 07/24/2012 |
| 8144071 | Antenna device and portable radio communication device comprising such an antenna device A quad-band antenna device (10) for a portable radio communication device comprises two radiating elements (12, 14) of different lengths and two common conductors (18, 20) of different lengths. One of the common conductors can be selectively con... | 03/27/2012 |
| 8144072 | Multi-band antenna for notebook computer A multi-band antenna includes an insulative carrier board arranged on the top side of the display screen of a notebook computer, a main antenna which has the top metal strip thereof disposed at the top edge of the insulative carrier board and the grounding metal str... | 03/27/2012 |
| 8120545 | Multifunctional antenna chip A multifunctional antenna chip is able to mate with many kinds of matched circuits and is able to adjust the character of an antenna structure of the multifunctional antenna chip, in order that the antenna structure has one or multiple standard working frequencies. ... | 02/21/2012 |
| 8106847 | Communication circuit, communication apparatus, impedance matching circuit and impedance matching circuit designing method A communication circuit is provided with an antenna section, such as a nonresonant antenna, and a matching section which connects with the antenna section and adjusts impedance, for example. The matching section has a transmission line, and the electric length and c... | 01/31/2012 |
| 8106848 | Programmable antenna with programmable impedance matching and methods for use therewith A programmable antenna includes a fixed antenna element and a programmable antenna element that is tunable in response to at least one antenna control signal, wherein tuning the programmable antenna element changes an impedance of the antenna. A programmable impedan... | 01/31/2012 |
| 8081136 | Dual-band antenna The dual-band antenna is provided. The dual-band antenna includes an impedance matching control element, a first connection part, a first radiation element, a second radiation element, and a ground element. The first radiation element operates in a first frequency b... | 12/20/2011 |
| 8040289 | Low-profile wide-bandwidth radio frequency antenna The present invention relates to an RF antenna structure that includes a planar structure and a loading plate, such that the planar structure is mounted between a ground plane and the loading plate to form an RF antenna. The loading plate may be about parallel to th... | 10/18/2011 |
| 8022888 | Antenna device An antenna device includes a first radiator receiving a first feed signal, a second radiator spaced apart from the first radiator at a predetermined distance and capacitively coupled with the first radiator, a feed line connected to a feed terminal of the first radi... | 09/20/2011 |
| 7982683 | Antenna design for FM radio receivers An apparatus includes first and second speakers, and an antenna including a first pair of wires connected to the first speaker, a second pair of wires connected to the second speaker, and a conductive sleeve surrounding portions of the first and second pairs of wire... | 07/19/2011 |
| 7948445 | Wideband antenna and clothing and articles using the same Provided are a first planar radiating element and second planar radiating element that have at least one side. At least the first or second radiating element has a strip-shaped element. A first side of the first radiating element and a second side of the second radi... | 05/24/2011 |
| 7893888 | Programmable antenna with programmable impedance matching and methods for use therewith A programmable antenna includes a fixed antenna element and a programmable antenna element that is tunable to one of a plurality of resonant frequencies in response to at least one antenna control signal. A programmable impedance matching network is tunable in respo... | 02/22/2011 |
| 7859478 | Dipole antenna with improved performance in the low frequency range A dipole antenna is provided herein with improved performance at a lower end of the antenna's operating frequency range. According to one embodiment, the dipole antenna may include a plurality of antenna elements coupled to impedance transformer via a pair of cones ... | 12/28/2010 |
| 7847751 | Planar broadband antenna A planar broadband antenna includes a flat elliptical antenna device. The elliptical antenna device includes a central antenna element, a first angular antenna element and a second angular antenna element. The central antenna element is disposed parallel to a suppor... | 12/07/2010 |
| 7812781 | Matching device and antenna matching circuit A battery portion (BAT) or another type of voltage shift portion is provided for shifting a control voltage (V2) in a direction which causes the anode potential of a variable-capacitance diode (VD) to be a negative potential and superimposes its battery volta... | 10/12/2010 |
| 7808444 | Two-way antenna connector A system includes a first matching network having a first impedance and a second matching network having a second impedance, where the second impedance is different than the first impedance. The system further includes a switching connector having first and second s... | 10/05/2010 |
| 7786949 | Antenna An antenna includes inductance elements that are magnetically coupled together, an LC series resonant circuit that includes one of the inductance elements and capacitance elements, and an LC series resonant circuit that includes another of the inductance elements an... | 08/31/2010 |
| 7746290 | Adaptive antenna matching The present invention relates to a portable communication device and a method of controlling the matching of an antenna in a portable communication device. The device may include an antenna; a radio circuit to send a radio frequency signal to the antenna via a signa... | 06/29/2010 |
| 7714795 | Multi-band antenna apparatus disposed on a three-dimensional substrate, and associated methodology, for a radio device Antenna apparatus, and an associated methodology, for a multi-frequency-band-capable radio device, such as a quad-band mobile station. The antenna apparatus is formed from a three-dimensional rectilinear non-conductive dielectric antenna substrate, such as cube. An ... | 05/11/2010 |
| 7696947 | Radio frequency identification transponder antenna A RFID transponder having a microchip or integrated circuit, an impedance-matching structure and a resonant structure mounted on at least one substrate and connected to each other by an electric field. ... | 04/13/2010 |
| 7659864 | Broadband antenna A broadband antenna has a substrate, a coupling conductor, a conductor string, a ground conductor and a ground plane. The coupling conductor has a first coupling member and a second coupling member being separated from each other. The conductor string and the ground... | 02/09/2010 |
| 7652636 | RFID devices having self-compensating antennas and conductive shields A radio frequency identification (RFID) tag includes an antenna configuration coupled to an RFID chip, such as in an RFID strap. The antenna configuration is mounted on one face (major surface) of a dielectric material, and includes compensation elements to compensa... | 01/26/2010 |
| 7639199 | Programmable antenna with programmable impedance matching and methods for use therewith A programmable antenna includes a fixed antenna element and a programmable antenna element that is tunable to one of a plurality of resonant frequencies in response to at least one antenna control signal. A programmable impedance matching network is tunable in respo... | 12/29/2009 |
| 7639200 | Antenna An antenna includes a ground plane, a match portion, and a radiation portion. The ground plane is used for grounding. The match portion is parallel to the ground plane, and is connected to the ground plane. The radiation portion is connected to one end of the match ... | 12/29/2009 |
| 7629942 | Antenna An antenna includes inductance elements that are magnetically coupled together, an LC series resonant circuit that includes one of the inductance elements capacitance elements, and an LC series resonant circuit that includes another of the inductance elements and ca... | 12/08/2009 |
| 7612733 | Transition region for use with an antenna-integrated electron tunneling device and method An electron tunneling device includes a first non-insulating strip and a second non-insulating strip spaced apart from one another such that first and second end portions, respectively, of the first and second non-insulating strips cooperate to form an antenna havin... | 11/03/2009 |
| 7583237 | Antenna module having a multilayered substrate with built-in components which are connected to mounted components A multilayered substrate includes a first layer and at least one second layer laminated on one face of the first layer. A first component is mounted on the other face of the first layer. A second component is comprised of a pattern formed on at least one second laye... | 09/01/2009 |
| 7439934 | Antenna and an antenna feed structure A dielectrically-loaded helical antenna has a cylindrical ceramic core bearing metallised helical antenna elements which are coupled to a coaxial feeder structure passing axially through the core. Secured to the end face of the core is an impedance matching section ... | 10/21/2008 |
| 7409245 | Variable antenna matching network for an implantable antenna An implantable medical device may have an antenna for communication with external devices or other internal devices. Changes in the patient's body position, weight, composition or other factors may change the antenna efficiency and hinder communication. The disclose... | 08/05/2008 |
| 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 |
| 7379714 | Method and apparatus for dynamically adjusting a transmitter's impedance A method and apparatus for dynamically adjusting the impedance between a transmitter's power amplifier (PA) and antenna to efficiently transfer power from the PA to the antenna. The impedance between the PA and the antenna is adjusted based on power level measuremen... | 05/27/2008 |
| 7372412 | Transceiver-integrated antenna The transceiver-integrated antenna includes an antenna element, a ground plate for grounding the antenna element, and a transceiver configured to transmit and receive radio signals through the antenna element. The transceiver is housed in a recess formed in the grou... | 05/13/2008 |
| 7372402 | Method for enhancing the measuring accuracy in an antenna array The invention refers to a method and a system for enhancing the measuring accuracy in an antenna array (1), where the method comprises the steps of; a) receiving analog signals on all antenna elements (2) at a first time t1; producing first ... | 05/13/2008 |
| 7369096 | Impedance matched passive radio frequency transmit/receive switch A Radio Frequency (RF) structure services an antenna having a characteristic impedance and includes a differential Power Amplifier (PA), a differential Low Noise Amplifier (LNA), and a balun transformer. The differential PA has a differential PA output with a PA dif... | 05/06/2008 |
| 7365701 | System and method for generating a genetically engineered configuration for at least one antenna and/or frequency selective surface An optimal configuration for at least one antenna and/or at least one frequency selective surface is generated. A configuration of elements is generated by selecting a simple configuration of at least one element and applying a genetic algorithm to the simple config... | 04/29/2008 |
| 7366304 | Cruable U-NII wireless radio with secure, integral antenna connection via SM BIOS in U-NII wireless ready device A method that utilizes software and hardware mechanisms to meet the FCC requirement for a U-NII antenna to be an integral part of the device in which it operates, while providing wireless ready U-NII devices and CRUable U-NII radios. Enhancements are made to the sof... | 04/29/2008 |