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WO/2009/049595A1 |
For a double-lobe antenna system for passive ESM sensors having a large bandwidth, it is proposed that two identical antennas having a corresponding bandwidth are disposed back to back and that a reflector is provided for bundling and de...
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WO/2009/037821A1 |
To provide an induced power transmission circuit that transmits, from a transmission antenna (1) connected to a power supply circuit, an AC power having an angular frequency ω to a spaced reception antenna (2) with an excellent efficien...
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WO/2009/034125A1 |
The invention relates to an antenna of the helix type, comprising a plurality of radiating strands wound in a helix in an axisymmetric form (15), characterized in that each radiating strand is made up of at least one reference pattern (M...
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WO/2009/032263A1 |
An antenna assembly for use with a predetermined carrier signal having a predetermined frequency and wavelength associated therewith, comprising: a dipole antenna, the dipole antenna including two electrically conductive elements (100, 1...
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WO/2009/014990A1 |
A log-periodic dipole array system employs a structure for the transmitter and the receiver designed in a way such that they compensate for the non-linear characteristics of each other to realize linear phase characteristics as a pair. R...
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WO/2009/014554A1 |
Multi-plane antennae on a substrate having a front face and a back face are provided. A plurality of through holes extend through the substrate between the front face and the back face of the substrate. A first antenna component is on th...
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WO/2009/012957A2 |
Rod antenna (1), which is designed for transmission and/or reception of radio-frequency signals, having an antenna pole (2), which has a mount on which an antenna conductor structure is arranged, wherein the mount together with the anten...
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WO/2009/008417A1 |
A portable wireless device including a first housing (101) and a second housing (102) foldably coupled via a hinge (104), and a third housing (103) including an approximately rectangular display part (106) coupled with the second housing...
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WO/2009/004128A1 |
The invention relates to the production of miniature directional or non-directional antennas which are intended for consumer use and which have very low environmental sensitivity.
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WO/2009/002210A1 |
The inventive phase-scanned antenna array relates to radio engineering, in particular to communications means, mainly to helical very high-frequency and ultra high-frequency antennas for transmitter-receiver devices. The antenna comprise...
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WO/2008/154305A1 |
A non-planar, ultra-wide band, quasi-self-complementary feed antenna is disclosed. The antenna provides an invariant phase center location over its entire frequency band, is compact and includes a low profile, and includes input matching...
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WO/2008/150571A1 |
A noise shaping and voltage gain filtering third order electrical circuit and method comprises at least one pair of input resistors; a Frequency Dependent Negative Resistance (FDNR) filter positioned in between the at least one pair of i...
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WO/2008/142099A1 |
The invention relates to a helix antenna comprising a plurality of radiating elements wound helically in an axisymmetric shape (15), characterized in that each radiating element comprises a repetition of the same pattern, which is define...
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WO/2008/144683A1 |
A system is provided that enhances the throughput and reliability of wireless communications by providing multi-beam user terminals that exhibit directional discrimination. Multiple wireless communication channels are matched with multip...
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WO/2008/137152A1 |
An embodiment of the present invention provides an apparatus, comprising a transceiver, an antenna tuner connecting said transceiver to an antenna, a power sensor adapted to acquire measurements about transmit power, a receive signal str...
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WO2007120568B1 |
Systems and methods are provided for generating dual outputs in a digital exciter system. A first signal path (34) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency m...
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WO/2008/112600A1 |
Methods and apparatus to reduce power consumption in a wireless device (100) are disclosed. An example method includes sensing movement of the wireless device via a sensor unit (104); conveying data of a first size at a first frequency f...
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WO/2008/111799A1 |
Disclosed herein is the structure of a Square Quadrifilar Helical antenna (S-QHA). The structure of the S-QHA includes a square column, four radiation elements, and a feed network. The four radiation elements are formed on the square col...
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WO/2008/105977A2 |
An antenna is provided and includes an outer dish having a first surface and a second surface; an inner dish mounted to the first surface of the outer dish; a helix feed mounted on a ground plane; and a support mounted at an axial center...
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WO/2008/092512A1 |
The present invention relates to an antenna element for a portable communication device as well as to a portable communication device including such an antenna element. The antenna element (18) includes a wire of an electrically conducti...
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WO/2008/092511A1 |
The present invention relates to a portable communication device (14) that includes a radio communication unit (48), an antenna exciter element (18) for connection to the radio communication unit and ground (46) and at least one further ...
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WO/2008/088603A1 |
A wireless communication unit (300) comprises a linearised transmitter (325) having a forward path and a feedback path, respectively comprising at least one up- mixer and down-mixer, and forming two loops in quadrature. A phase training ...
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WO/2008/084205A1 |
A dielectrically loaded multifilar helical antenna having an operating frequency in excess of 200MHz has an electrically insulative core with a relative dielectric constant greater than (5) occupying the major part of the interior volume...
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WO/2008/081125A1 |
According to the invention, each ground wave antenna of the network includes a ground plane (M1, PM2) buried essentially horizontally close to and under the ground surface (S), and a metallic excitation line (LE1, LE2) extending essentia...
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WO/2008/079258A1 |
A coaxial antenna is implemented that combines a VHF and UHF antenna on a common radiating element. The antenna may further include a satellite antenna that, together with the VHF/UHF antenna fits into a whip antenna footprint.
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WO/2008/072415A1 |
A multiple frequency antenna that even in the operation in multiple frequency bands, allows minimizing of the whole length thereof. A helical element capable of operation in the frequency bands of FM broadcast is wound around the outer c...
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WO/2008/071946A1 |
A radio communication receiver which includes an antenna array having at least two antennas to provide antenna diversity. The receiver is for receiving signals containing orthogonally coded data sub-streams derived from a source data str...
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WO/2008/059294A1 |
A geodetic multi arm spiral antenna comprises an antenna feed, a processor and four antenna conductors. The antenna feed comprises a transmission line, the transmission line comprising four first conducting elements (15, 16, 17, 18) spac...
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WO/2008/056601A1 |
An antenna unit (1) comprising an antenna coil (2) for performing at least one of reception and transmission of an electromagnetic signal, a bobbin (3) around which the antenna coil (2) is wound, a core (4) contained in the bobbin (3), a...
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WO/2008/024429A2 |
In accordance with the teachings described herein, an RFID antenna system is provided for detecting RFID tags on a display structure. The antenna system may include an antenna having an elongated conductor extending from a feeding point ...
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WO/2008/020945A2 |
A transmission line resonator loop antenna includes a transmission line resonator for receiving an input excitation signal and producing a predetermined resonant output signal which is substantially phase reversed relative to the input e...
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WO/2008/016364A2 |
A cryogenic vacuum rf feedthrough device comprising: 1) a probe for insertion into a particle beam; 2) a coaxial cable comprising an inner conductor and an outer conductor, a dielectric/ insulating layer surrounding the inner conductor, ...
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WO/2008/014990A1 |
The invention relates to an antenna, in particular a mobile radio antenna for vehicles, wherein the antenna has a connection part (3) and reception means, in particular a helical antenna coil (7), which are surrounded by casing material ...
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WO/2008/014029A2 |
Methods and apparatus are provided to enable a transceiver (200) or transmitter including a single PA line-up (210) to transmit signals having frequencies in two or more different frequency bands, and/or having two or more different modu...
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WO/2008/008176A2 |
A supply voltage controlled power amplifier includes a power amplifier, a closed power control loop configured to generate a power control signal, and a voltage regulator coupled to the power control loop, the voltage regulator including...
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WO/2008/008904A1 |
A quadrifilar helix antenna used to transmit and receive wireless signals may include a number of inductively loaded antenna elements. The antenna elements may be helically wound around a cylindrical structure.
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WO/2008/003993A1 |
An antenna arrangement for use in an ultra-wideband network comprises a plurality of active monopoles. Each monopole is oriented substantially perpendicular to a ground plane, and arranged in a row along a transmission axis. Each monopol...
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WO/2008/002704A2 |
A system (100) and method (300) of feedback transmitter power control can include a transmitter temperature detector such as a thermistor based temperature detector (118), a detector for detecting forward and reflected transmitter power ...
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WO/2007/143616A2 |
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 t...
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WO/2007/143246A2 |
An RF transmitter (30) includes an RF power amplifier (32) for which the power input bias voltage (40) and signal input bias voltage (80) are controlled within feedback loops. A peak detector (44) generates a lowered-spectrum, peak-track...
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WO/2007/133262A2 |
An apparatus and technique for extracting information carried in higher eigenmodes or harmonics of an oscillating cantilever or other oscillating sensors in atomic force microscopy and related MEMs work is described.
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WO/2007/133246A2 |
An efficient high-temperature water vapor generator is used to heat heavy oil located in an underground cavity, thereby reducing the viscosity of the oil and enabling the oil to be pumped to the surface. The vapor generator includes a co...
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WO/2007/133244A2 |
The present invention is directed to a mobile platform for the delivery of bulk explosives to a blast hole. One embodiment of the platform provides the ability to obtain weight information relating to the contents of a tank that is assoc...
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WO/2007/132161A1 |
An antenna system for operation at frequencies in excess of 200MHz, comprises an antenna, a transmission line and a receiver stage, the transmission line electrically connecting the antenna to an input of the receiver stage, and the ante...
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WO/2007/122614A2 |
An antenna (10), consisting of a folded looped conductor (24) closed at a feedpoint (22). The antenna has at least two conductive arms (12, 14) extending from the feedpoint.
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WO/2007/116623A1 |
A highly sensitive antenna coil is provided by increasing the length of a core or increasing the winding number of a coil or increasing the length of the coil, without increasing the sizes of the antenna coil. An antenna coil (10) is pro...
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WO/2007/104568A1 |
The invention relates to an improved rod antenna characterised by the following features: an antenna base (3); a radiating element (9) held over the antenna base (3) and comprising a coil arrangement consisting of an antenna conductor (9...
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WO/2007/100678A2 |
Embodiments of methods, transceiver circuits, and systems can compensate an IQ mismatch (e.g., Tx or Rx) or a carrier leakage using a plurality of local oscillators. One embodiment of a transceiver can include a first up-conversion IQ mi...
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WO/2007/092195A2 |
A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The...
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WO/2007/092794A2 |
A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The...
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