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WO/2003/050912A1 |
The present invention relates to a method and apparatus for obtaining measurements of induced resistivity of objects from confined spaces such as within the confined space of a down-hole hydrocarbon production well. It is well known that...
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WO2002011239A9 |
A multiple band reconfigurable reflecting antenna array and method for mulitple band operationand beam steering. An array of dipole antennas is disposed on a multiple band high impedancesurface. The antenna array is reconfigured by chang...
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WO/2003/047029A1 |
An antenna system of the phased array type, with a carrier of electrically insulating material and at least two antenna units, which each comprise a receiving device for electromagnetic radiation and of which the receiving device is conn...
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WO/2003/047031A1 |
Broadband multi-resonant antennas utilize capacitive coupling between multiple conductive plates for compact antenna applications. The number and design of conductive plates may be set to achieve the desired bandwidth. In one exemplary e...
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WO/2003/044898A1 |
A parabolic reflector (20) for an antenna has a plurality (N) of concentric annular sections (20a-20e) arranged in series from a first annular section (20a) nearest a central axis (40) of the reflector to a last annular section (20e, 30e...
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WO/2003/043124A1 |
A low−profile antenna system to be mounted to a moving vehicle for receiving signals, such as from a Digital Broadcast Satellite, includes a base for mounting to the surface of the vehicle, a platen mounted to the base for rotation, an...
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WO/2003/042714A1 |
A radar antenna for a guided missile is calibrated in flight using a point source of microwave radiation and a lens to emulate a far field source. The microwave source and lens fit behind a metal cap at the leading end of the radome and ...
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WO/2003/043128A1 |
An antenna assembly for wireless communications has various components to minimize signal influence when transmitting signals to minimize undesirable loop formation phenomena caused by (positive) feedback of signals. Signal wave scatteri...
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WO/2003/041222A1 |
A high−gain small−sized antenna for communication. The antenna has a multilayer structure of a ground conductive sheet, a feeding element of a metal sheet disposed on the ground conductive sheet, a first passive element of a metal sh...
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WO/2003/041224A1 |
A directive antenna operable in multiple frequency bands includes an active antenna element and at least one passive antenna element parasitically coupled to the active antenna element. The passive antenna element(s) have length and spac...
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WO/2003/041117A2 |
The invention relates to an integrated semiconductor component for conducting high-frequency measurements and to the use thereof. According to the invention, the semiconductor component is part of a semiconductor circuit (10) (SOI wafer)...
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WO2002073740A9 |
A multi-band reflector antenna has a main reflector (12) defining a prime focus (11) and a frequency selective surface sub-reflector (50) defining an image focus (40). One or more transmitter or receiver feeds (32, 48) are provided at ea...
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WO/2003/034536A1 |
The invention relates to a method for the polarization alignment of an antenna of an earth station with polarization axyis of the antenna of a satellite emitting linearly polarized beacon signals. This method is characterized in that the...
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WO/2003/034541A1 |
A microwave reflector antenna for use on an aircraft. The microwave reflector antenna has a stationary plate that is attached to and stationary relative to the aircraft. A rotary plate rotates relative to the stationary plate about an az...
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WO/2003/034543A1 |
A reflector antenna system having a diplexer for providing isolation between transmitted and received signals, which eliminates the need for a diplexer to be inserted into the waveguide or coax transmission line coupling the antenna syst...
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WO/2003/032433A1 |
An improved method is provided for pointing an antenna subsystem residing on a mobile platform towards a satellite in a satellite communication system. The improved method includes: transmitting a tone signal from the satellite; receivin...
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WO/2003/030303A1 |
A small−sized and lightweight radio wave lens antenna apparatus which has a high degree of freedom to select installation sites, compactly installed on wall faces, and mitigated in installation restrictions in space. A semispherical Lu...
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WO/2003/028157A1 |
The invention concerns a broadband or multiband antenna for microwaves, comprising a reflector plane (R) and at least a radiating element (ER) arranged proximate to the reflector plane (R). A assembly of photonic forbidden band material ...
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WO/2003/028155A1 |
An electromagnetic wave marker comprises an almost rodlike receiving antenna for receiving electromagnetic waves, a frequency conversion circuit for multiplying the frequency of an electromagnetic wave, an almost platelike transmission a...
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WO/2003/028154A1 |
A flat metal plate (20) has a plurality of holes (50) that have a property that changes across the surface of the plate so that the flat plate (20) mimics the behavior of a curved wavefront transformer. The changing property can include ...
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WO/2003/026152A1 |
A wireless cellular communication system in which groups of cellular base stations communicate with a central office via a narrow-band millimeter wave trunk line. The transceivers are equipped with antennas providing beam divergence smal...
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WO/2003/026070A1 |
The prototype consists of a first frontal part made of plastic material (transparent) ultraviolet rays resisting, behind this a metallic antenna with mat black painting hot temperature proof. A following pipe network enables a thermic ex...
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WO/2003/026173A1 |
A method and apparatus are provided for transceiving signals. The method includes the steps of providing a secondary reflector within a focal region of a main reflector in a relative spatial relationship where a first radio frequency sig...
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WO/2003/026065A1 |
A reflector for use under a radome disposed on a mobile platform such as an aircraft for reflecting a portion of the electromagnetic energy radiated by an antenna disposed under the radome such that the reflected portion of energy imping...
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WO/2003/021714A2 |
Disclosed is an antenna system including a Luneberg Lens having a spherically shaped outer surface and a spherically shaped focal surface spaced from its outer surface with a plurality of patch antenna elements disposed along the focal s...
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WO/2003/021716A1 |
An antenna device, a wireless communication terminal, an external antenna and a hand−strap, which can retain a satisfactory communication performance even in a weak electric− field area without being seriously influenced by the surro...
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WO/2003/019726A2 |
An antenna and antenna excitation method. The inventive antenna includes a cylindrical array (20) of radiating elements. Each of the elements is mounted at a predetermined substantially transverse angle relative to a longitudinal axis. A...
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WO/2003/017424A1 |
A waveguide antenna (100) for use with a cellular-communications base station includes a pair of parallel plate waveguides (110), a vertical horn (120) coupled to said waveguide (110), a feed (130) having at least one probe (132), and a ...
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WO/2003/015211A1 |
An unbalanced power supply type radio−use antenna device which can be less affected by a human body, improved in gain and reduced in non−absorptance (SAR) without compromise in communication area, and which comprises an antenna eleme...
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WO/2003/010851A1 |
A portable radio−use antenna having directivity toward a side opposite to a human body and enhancing an antenna’s gain. A radio bottom board (10), serving as a circuit board, feeds power to a platy radiation element (20). The platy r...
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WO/2003/010850A1 |
A built−in antenna apparatus the whole of which is much smaller and much thinner than conventional while widening the band without making the apparatus itself platelike, and which has an improved a gain and a reduced SAR (Specific Abso...
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WO/2003/007419A1 |
A method for aligning a feed horn in an antenna system (100) is disclosed. The antenna system (100) includes at least one reflector surface and one or more feed horns (141, 142, ...145). The method includes the steps of determining a des...
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WO/2003/003516A1 |
A method and apparatus for quickly connecting and disconnecting an antenna (22) from a transceiver in a point−to−multipoint millimeter wave wireless communications system.
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WO/2003/003504A1 |
A spring loaded antenna mounting system for the directional antennae of a point-to-multipoint millimeter wave communication system and methods of supporting such antennae for selectively directing the beam thereof. The adjustment of the ...
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WO/2002/101878A1 |
A horn (12) for direct radiation or for use as a reflector feed is for operation at disparate frequencies. The horn has a conventionally LSE1,0 distribution at the lower of the two frequencies, and both LSE1,O and LSE3,O modes, phased fo...
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WO/2002/101879A1 |
An antenna. The antenna (20) includes a first dielectric antenna rod (22) having a first dielectric constant (23). The first dielectric antenna rod is coupled to a first frequency transmission source (27) for propagating first frequency ...
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WO/2002/097923A1 |
The invention relates to radio engineering, namely, to antenna systems. The purpose of the invention is improvement of efficiency synthesizing of both sector polar patterns in a wide range of azimuthal angles and pencil−beam polar patt...
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WO2001052354A9 |
An antenna. The antenna (20) includes a first dielectric antenna rod having a first dielectric constant ( epsilon 3). The first dielectric antenna rod (22) is coupled to a first frequency transmission source (27) for propagating first fr...
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WO/2002/093688A1 |
The invention relates to aerial engineering, in particular to superdirectional receiver-transmitter antennas. Said invention makes it possible to extend a bandwidth and the amplification factor and to obtain a narrow directional diagram ...
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WO/2002/089357A1 |
A point-to-point wireless gigabit millimeter wave communications link is disclosed. Preferred embodiments provide a back-up link. In other embodiments, each of two communicating antennas (220) is equipped with a telescopic camera (200) c...
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WO/2002/087017A1 |
This invention relates to antennae and in particular to antennae of the multi-element helically wound type. An helical antenna according to the invention has at least one conductive helix having a vertically orientated central longitudin...
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WO/2002/087018A1 |
The invention relates to a device for exciting a centrally focused reflector antenna, comprising a waveguide (1), a dielectric field transformer (2) arranged on said waveguide (1) and a mounting platform (3) for a series of modules (8) w...
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WO/2002/084801A1 |
An apparatus performs dual circular polarization in a flat plate antenna simultaneously, and does not require more than two meander line polarization layers. A first linear polarization layer and a second linear polarization layer includ...
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WO2001061785A9 |
An antenna device includes a dual polarized quad-ridge antenna horn an electrically conductive conduit with first and second opposite ends along a horn axis. Four electrically conductive ridges are carried on an inner side of the electri...
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WO/2002/078123A1 |
A build-in, multi band, multi antenna system (1) for a protable communicaiton device (10) has a first antenna (2, 4, 5), which is resonant in first an second frequency band. A secon antenna (3) is resonant in a fourth frequency bank. The...
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WO/2002/078124A1 |
A mobile communications device has a multifrequency band antenna with a low band portion (LB) tuned to a low frequency band, and a first high band portion (HB1) tuned to a first high frequency band at higher frequencies than the low freq...
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WO/2002/075849A1 |
A horn mount assembly (160) attaches a horn assembly (180) to a main feed leg (122) and provides adjustment on the Y-Z tilt axis and along the z-axis axis. The horn mount assembly includes a wave guide mount circular clamp (162), a flexi...
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WO/2002/075850A1 |
A feed legs assembly (120) connects a horn (180) and mount assembly (160) to a back frame (60) in an antenna assembly. The feed legs assembly (120) includes a main feed leg (122), a right side feed leg (140), and a left side feed leg (14...
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WO/2002/075843A1 |
A back frame (60) helps to minimize distortion of a dish assembly (100) by supporting the shape of the dish assembly and supporting the weight of a feed legs assembly (120). The back frame (60) includes a template assembly (61), a center...
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WO/2002/075842A1 |
A collapsible, steerable antenna system (10) is configured for rapid deployment that is highly accurate and sophisticated, yet easy to assemble. The antenna system (10) includes a pod mount assembly (20), a steering head controller assem...
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