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WO/2007/058620A1 |
An antenna for radio frequency identification is disclosed. The antenna comprises a first radiating element having at least one loop element and a second radiating element spatially displaced from the first radiating element and having a...
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WO/2007/056088A2 |
An indication is received to relocate leakage in a transmission signal to be transmitted. A frequency change associated with relocating the leakage in the transmission signal is obtained. The leakage in the transmission signal is relocat...
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WO/2007/056137A2 |
A transmit amplifier stage operable to amplify a transmit signal comprises power amplifiers and switches. The power amplifiers include at least one fractional power amplifier operable to provide fractional power to amplify the transmit s...
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WO/2007/051931A2 |
The invention relates to producing miniaturised or nondirectional antennas used in particular in a user remote control context. The general principle of said invention is to make it possible to use as a base a helical antenna operating i...
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WO/2007/050519A2 |
An apparatus for converting power includes at least one impedance matching network which receives an electrical signal. The apparatus includes at least one AC to DC converter in communication with the impedance matching network. Also dis...
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WO/2007/040826A2 |
A method (200) and circuit (100) for substantially maintaining an amplified constant envelope modulation signal at a constant pre-defined amplitude. The circuit (100) comprises a constant envelope modulation providing circuitry (104), a ...
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WO/2007/041058A2 |
A circuit for adjusting a magnitude of a transmit signal includes a transmitter (105), providing a transmit signal (107). It also includes a transmitter amplifier (109), receiving the transmit signal (107) and a power control adjustment ...
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WO/2007/034137A1 |
A mobile communication device has an antenna assembly comprising the combination of an inverted-F antenna and a dielectrically-loaded quadrifilar helical antenna, the latter mounted on the distal end of an elongate radiator element of th...
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WO/2007/033407A1 |
A portal antenna (10) particularly suited for enabling low frequency RFlD devices carried by animals to be read when animals are proceeding through a stock race or the like. The portal antenna includes a portal structure (11) through whi...
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WO/2007/033961A1 |
The invention concerns a wideband antenna system comprising at least one first antenna (1) operating in high frequencies, BPs frequency band, covering long distances and a second antenna (2) operating in low frequencies, BPb frequency ba...
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WO/2007/035064A1 |
The present invention relates in general, to a chip antenna and, more particularly, to a dual-band small- sized chip antenna, in which a first antenna element, including a plurality of coil members, is coupled with a second antenna eleme...
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WO/2007/033343A2 |
Systems and methods for an RF nulling scheme are provided. An RF nulling scheme can minimize the level of unwanted RF signal reflections entering the receiver without attenuating the desired signal response from an RFID tag. In one aspec...
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WO/2007/018696A1 |
An apparatus (101) performs power control for an air interface transmission between a receiver (105) and a transmitter (103). The apparatus (101) comprises a power control processor (113) which operates a power control loop for the air i...
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WO/2007/018849A2 |
A phase rotator (42) for a Cartesian feedback power amplifier (32) in a transmitter final stage (13) contains an Integrated voltage controlled tunable resonant circuit (88) accomplishing band-pass filtering (80) at a center frequency sel...
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WO/2007/004932A1 |
The invention discloses a repeater antenna (130, 200) for use in point-to-point applications in telecommunications systems in the microwave range, intended for connecting transmissions from a first radio unit (110) at a first site to a s...
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WO/2006/136810A1 |
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 a...
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WO/2006/138032A2 |
The present invention is related to a method and system for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver comprise multiple antennae for transmission an...
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WO/2006/138021A2 |
The present invention is related to a method and apparatus for generating feedback information for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver compris...
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WO/2006/136809A1 |
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 a...
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WO/2006/127714A2 |
A supply voltage controlled power amplifier that comprises a power amplifier, a closed power control feedback loop configured to generate a power control signal, and a dual voltage regulator coupled to the power control feedback loop, th...
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WO/2006/127115A1 |
A radio transmitter arrangement (100), e.g. for a base station of a cellular communication system, comprises a power amplifier (103) for generating a radio frequency signal to be radiated from an antenna (105). A power supply means (107,...
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WO/2006/116741A2 |
A radio frequency power amplifier and corresponding methods are arranged and configured to drive a resonant load with an output signal that includes AM or complex modulation from an input signal. The amplifier includes: a radio frequency...
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WO/2006/115707A2 |
An internal calibration system for a radio frequency (RF) transmitter comprises a digital processing element to generate within a radio frequency (RF) transmitter test points at which an output of the RF transmitter is measured, an RF de...
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WO/2006/116743A2 |
A radio frequency power amplifier and corresponding method is arranged and configured to drive a resonant load. The radio frequency power amplifier includes a radio frequency switching stage with an output that is coupled to a resonant c...
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WO/2006/110451A2 |
A rapid and inexpensive process for increasing the amount of hydrocarbons (e.g., oil) produced and the rate of production from subterranean hydrocarbon-bearing reservoirs by displacing oil downwards within the oil reservoir and into an o...
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WO/2006/109663A1 |
An antenna device is provided with a power supplying section, a first antenna element, a second antenna element and a film. The first antenna element includes a first feed line connected with the power supplying section, and a plurality ...
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WO/2006/107690A2 |
Dynamic gain and phase compensation is provided in a radio frequency (RF) receiver (106) including at least one switched Low Noise Amplifier (LNA) (212) coupled to an RF gain control unit (226) providing a gain control signal to the at l...
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WO/2006/107841A2 |
Methods and apparatus are provided for gain and phase compensation in a radio frequency (RF) transmitter (108). The RF transmitter (108) has at least one power amplifier (PA) (205)for providing a transmitted signal having a signal power ...
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WO/2006/102135A2 |
An antenna arrangement (10) including a first antenna module (12) having a first antenna loop (14) positioned in a plane for emitting a signal in a first spatial area (16), and at least one additional antenna loop (18) positioned in subs...
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WO/2006/100440A1 |
In a dielectrically-loaded quadrifilar antenna for operation with circularly polarised signals, four coextensive composite helical elements are plated on the outer surface of a cylindrical dielectric core (12), each composite element com...
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WO/2006/098791A2 |
The device includes a first antenna (ANT1) that is coupled to a first transmit/receive switch (SW1), which is in turn coupled to a first transmitter (TXTR1) and a first receiver (RCVR1) in response to a first control signal (TX1/RX1N). A...
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WO/2006/098891A2 |
A method is provided for transmitting data. A first device (121) generates a first signal (320) having a first duty cycle, comprising a first gated-on portion (323) and a first gated-off portion (326) a time slot (260); and a second devi...
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WO/2006/096402A2 |
A log periodic dipole antenna in which some, or preferably all, of the mechanical attachments do not include metal-to-metal contact points. In particular, the antenna elements, which are cantilevered from a ground plate, are mechanically...
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WO/2006/094159A2 |
A small number of transmissions are performed at a sufficient number of frequencies and power levels so that a correlation between frequency, measured power, and detector values is established. Once a correlation is established, the wire...
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WO/2006/078658A1 |
This invention relates to structures which display negative magnetic permeability in response to a relatively broad range of wavelengths.This invention further relates to manufacture of negative magnetic permeability or negative electric...
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WO/2006/079114A2 |
Method and apparatus for providing EMC Class-B compliant RF transmission for a data monitoring and detection system having a sensor for detecting one or more glucose levels, a transmitter configured to transmit a respective signal corres...
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WO/2006/061085A1 |
An antenna (425, 525) for a wireless terminal can include an antenna configured to be removably coupled to the wireless terminal and configured for display of digital video broadcast data based on received DVB-H compliant signals.
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WO/2006/059568A1 |
An antenna device which can provide a high gain by a small and flat constitution and can switch main beam directions. On a same flat plane, rhombic antenna sections composed of sections (101a-101d, 102a-102d, 103a-103d) are arranged, and...
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WO/2006/051257A1 |
A dielectrically loaded backfire helical antenna has a cylindrical ceramic core (12) and a feed structure which passes axially through the core to a distal end face of the core where it is connected to helical conductors (10A - 10D) loca...
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WO/2006/051947A1 |
A circularly polarized antenna comprises a dielectric substrate, a base conductor joined to one side of the dielectric substrate, a circularly polarized antenna element formed on the opposite side of the dielectric substrate, metal posts...
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WO/2006/045769A1 |
The invention relates to a helical antenna comprising at least one helix which is formed by at least two radiating conductive strands (201,202), wherein at least one of said conductive strands (201,202) extends into at least two sub-stra...
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WO/2006/037990A1 |
A unitary feed structure for sliding installation in a passage in the insulative core of a dielectrically-loaded antenna comprises the unitary combination of a tubular outer shield conductor and elongate inner conductor which extends thr...
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WO/2006/039109A2 |
A system for current efficient dynamic power range control in a transmitter lineup (10) can include a switched mixer (18) coupled to a switched step attenuator (20) and a switched power driver (22) coupled to the switched step attenuator...
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WO/2006/011723A1 |
A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. Th...
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WO/2006/000885A1 |
Disclosed is a method to operate a RF transmitter, and an RF transmitter constructed to operate in accordance with the method. The method includes determining a transmitter output power and varying a level of a signal at a transmitter ph...
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WO/2005/124923A1 |
There is provided a mobile telephone assuring a high reception sensitivity over a wide band without deteriorating the design of the mobile telephone. In the mobile telephone, a helical antenna (4) operating as an antenna for television r...
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WO/2005/122325A1 |
By devising the case shape and antenna arrangement, it is possible to provide a mobile radio terminal capable of always having a high antenna sensitivity even when the mobile radio terminal is placed in a pocket of user’s clothes. In t...
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WO/2005/114788A1 |
A stub-loop based antenna doublet array having an offset feed and adjustably positioned stub-loops is provided that enables improved isolation of the horizontal versus vertical polarization characteristics from the impedance. Consequentl...
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WO/2005/112278A1 |
A novel transmitter circuit is disclosed for receiving of an input signal and for providing of an amplitude increased RF output signal. Pluralities of switching power amplifiers are disposed along two signal propagating circuit branches ...
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WO/2005/109571A1 |
Disclosed is an antenna coupler (1) for testing mobile radio devices. Said antenna coupler (1) comprises a receiving element for retaining the mobile radio device and a two-arm planar helical antenna (17) which is disposed thereunder and...
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