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7586464 |
Broadband leaky wave antenna
An antenna comprises a conically shaped body of dielectric material. Cross-sections of the body have truncated elliptical shape, wherein each shape is truncated substantially through a first focus...
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7522115 |
Satellite ground station antenna with wide field of view and nulling pattern using surface waveguide antennas
The present invention is applicable to satellite ground station antennas having a wide field of view in comparison to the satellites with which the antenna connects. One embodiment includes a...
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7486236 |
High-frequency feed structure antenna apparatus and method of use
An antenna apparatus for the reception of, and or transmission of, electromagnetic energy, the apparatus including a non-radiating dielectric waveguide aperture coupled to at least one dielectric...
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7432871 |
True-time-delay feed network for CTS array
A true-time-delay feed network for a continuous transverse stub antenna array includes a plurality of feed levels, each comprising one or more rails, the feed levels arranged in a spaced...
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7358919 |
Feedhorn, radio wave receiving converter and antenna
A feedhorn includes a chassis body, a waterproof cover serving as a cover member and a dielectric antenna. The chassis body includes a waveguide having an opening. The waterproof cover is connected...
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7295165 |
Phased array antenna choke plate method and apparatus
A phased array antenna system on an aircraft that incorporates a choke plate that significantly attenuates sidelobes of the antenna beam pattern at elevation angles that would cause RF interference...
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7283102 |
Radial constrained lens
The invention provides apparatuses for a radial constrained lens in a steerable directional antenna system. The radial constrained lens includes a feed array that excites a continuous radiating...
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7205950 |
Radio wave lens antenna
A multi-beam lens antenna for individual communication with communication satellites spaced at small elongations. The multi-beam antenna comprises primary feeds 3 each of which is composed of a...
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7167139 |
Hexagonal array structure of dielectric rod to shape flat-topped element pattern
A hexagonal array structure of a dielectric rod for shaping a flat-topped element pattern (FTEP) is provided. The hexagonal structure of dielectric rods forming a flat-topped element pattern (FTEP)...
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7161555 |
Dielectric antenna and radio device using the same
A dielectric antenna of the present invention includes a pillar-shaped dielectric section for radiating an electromagnetic wave being fed thereto. The dielectric section includes a depressed...
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7151499 |
Reconfigurable dielectric waveguide antenna
A reconfigurable directional antenna for transmission and reception of electromagnetic radiation includes a transmission line aligned with and adjacent to a metal antenna element with an evanescent...
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7119755 |
Wave antenna lens system
An array of dielectric wave antennas is disclosed. Each wave antenna has a central dielectric portion and two dielectric tapered portions, disposed on opposite sides of the central dielectric...
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7109941 |
Feedhorn, radio wave receiving converter and antenna
A feedhorn, a radio wave receiving converter, and an antenna that can be reduced in size and have high reliability can be obtained. A feedhorn portion constitutes part of a converter, and includes...
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7109940 |
Antenna element with curved dielectric member and array of such elements
An antenna, which may be used as an element in an array, includes an elongated curved dielectric member having a high dielectric constant. One end of the dielectric member is in physical contact...
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7102584 |
Through air radar level transmitter
A process control instrument comprises a control for generating or receiving a high frequency signal. A waveguide comprises a cylindrical housing closed at one end by a rear wall. A loop launcher...
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7095380 |
Antenna device
An antenna apparatus in which a combination of rectangular waveguides 9 a and 10 a and a combination of rectangular waveguides 9 b and 10 b are disposed bilateral symmetrically to each...
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7012572 |
Integrated ultra wideband element card for array antennas
An element card for an ultra-wideband array antenna is disclosed. The element card has one or more integrated antennas and can be designed to operate over multiple decades of bandwidth. The element...
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7006043 |
Wideband circularly polarized single layer compact microstrip antenna
An electrically small wideband circularly polarized single layer compact microstrip antenna that permits a substantial reduction in antenna size is provided, by stacking a semicircular radiating...
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6995727 |
Reflector antenna feed
An antenna feed comprises, aligned and centered on an axis OO′, a waveguide having an inside diameter, a first end and a second end, a dielectric body having a portion inside the waveguide and a...
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6949487 |
Dielectric ceramic composition
It is an object of the invention to provide a dielectric ceramic composition which enables its firing temperature to be lowered and which has an excellent electrical properties, particularly...
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6894654 |
Waveguide for a traveling wave antenna
A travelling waveguide antenna has top and bottom spaced plates, the top plate having radiating apertures extending therethrough. The apertures have inclined surfaces facing one another to provide...
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6876335 |
Arrangement for feeding a centrally focused reflector antenna
An arrangement for feeding a centrally focused reflector antenna includes a waveguide ( 1 ), a dielectric field transformer ( 2 ) arranged on the waveguide ( 1 ) and a mounting platform ( 3 ) for a...
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6862436 |
High frequency circuit board and antenna switch module for high frequency using the same
A high frequency circuit board comprising: a choke coil circuit element of a high frequency switching circuit; a dielectric laminated structure body comprising a plurality of dielectric layers...
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6839030 |
Leaky wave microstrip antenna with a prescribable pattern
A system and method for prescribing an amplitude distribution to a leaky-wave microstrip antenna having an array of radiating cells. The leaky-wave microstrip antenna includes a grounded element, a...
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6819296 |
Antennas
A marine radar antenna has a single dielectric plate mounted in front of the waveguide polarization grid between two horn plates. A strip of dielectric material is secured to the upper and lower...
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6801164 |
Broad band and multi-band antennas
Antenna systems ( 200, 1300, 1500, 1900, 2000, 2400 ) comprise a dielectric resonator antenna ( 210 ) in the shape of a parallelepiped with right angle corners. The thickness (T) of the dielectric...
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6800577 |
MICROWAVE DIELECTRIC CERAMIC COMPOSITION OF THE FORMULA XMO-YLA2O3-ZTIO2 (M&equals SR, CA; X:Y:Z&equals 1:2:4, 2:2:5, 1:2:5 OR 1:4:9), METHOD OF MANUFACTURE THEREOF AND DEVICES COMPRISING THE SAME
A microwave dielectric ceramic composition comprises a composition of the formula xMO-yLa 2 O 3 -zTiO 2 wherein M is selected from Sr and Ca and x:y:z=1:2:4, 2:2:5, 1:2:5, 1:4:9.
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6778146 |
Satellite broadcast reception converter suitable for miniaturization
In a satellite broadcast reception converter, probes are equipped in a circular hole formed in a first circuit board, and plural fixing holes are formed around the circular hole. Snap pawls are...
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6750827 |
Dielectric waveguide antenna with improved input wave coupler
An improved millimeter wavelength antenna assembly having an input signal coupler, a dielectric waveguide, and a rotatable drum is disclosed. The input signal coupler reduces VSWR return losses and...
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6741217 |
Tunable waveguide antenna
A family of FE dielectric-tuned antennas and a method for frequency tuning a wireless communications antenna are provided. The method comprises: forming a radiator; forming a dielectric with...
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6717553 |
Primary radiator having excellent assembly workability
A primary radiator including a waveguide formed by winding a metallic plate into a cylindrical shape and superimposing both ends thereof at a joining portion. Two first flat portions and two second...
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6714166 |
Converter for satellite broadcast reception that secures isolation between vertically polarized waves and horizontally polarized waves
Each of a first minute radiation pattern and a second minute radiation pattern is provided on a first circuit board so as to be inclined electrically by about 45° from the respective axial lines...
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6714165 |
Ka/Ku dual band feedhorn and orthomode transduce (OMT)
A dual band, higher and lower frequency range transducer with a circular coaxial waveguide feed is described having a first junction for connection of a lower frequency range outer waveguide of the...
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6700549 |
Dielectric-filled antenna feed
A dielectric fill disposed in a waveguide is used to form an antenna feed. One attribute of the dielectric fill is to enable a reduction in aperture size that in turn increases the beamwidth. More...
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6686406 |
Dielectric ceramic, resin-ceramic composite material, electrical part and antenna, and manufacturing method thereof
A dielectric ceramic containing Bi, Zn, and Sr as constituent elements. A resin-ceramic composite material containing a mixture of the dielectric ceramic powder and an organic polymer resin. An...
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6667722 |
Multibeam radar sensor with a fixing device for a polyrod
A multibeam radar sensor is proposed in which a holder (of resilient construction) for polyrods, in connection with a spacing element, holds the polyrods fixedly at a predetermined spacing,...
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6661389 |
Horn antenna for a radar device
The invention relates to a horn antenna for a radar-filling level measuring device having an antenna envelope ( 3 ) that comprises a flaring hollow space ( 4 ) of the antenna, in which a filling (...
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6597323 |
Dielectric leaky wave antenna having mono-layer structure
The present invention provides a dielectric leaky-wave antenna having a single-layer structure which is effective for realizing a highly efficient low-cost antenna in a quasi-millimeter wave zone...
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6593893 |
Multiple-beam antenna employing dielectric filled feeds for multiple and closely spaced satellites
An approach for providing a multiple-beam antenna system for receiving and transmitting electromagnetic signals from a plurality of closely spaced satellites is disclosed. Dielectric inserts are...
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6580400 |
Primary radiator having improved receiving efficiency by reducing side lobes
A radiation section of a dielectric feeder protrudes from an opening of a waveguide to improve the efficiency of receiving radio signals. An opening is provided at one end of the waveguide. A...
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6567054 |
Primary radiator suitable for miniaturization
A primary radiator includes a waveguide holding a dielectric feeder on which a radiation part, an impedance-conversion part, and a phase-conversion part are integrally formed. The radiator part...
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6549174 |
Apparatus for transmitting radio-frequency signals
The invention relates to an apparatus for transmitting radio-frequency signals using a signal generation unit ( 2 ), a signal line ( 3 ), a radiating element ( 4 ) and a waveguide ( 5 ) which is...
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6501433 |
Coaxial dielectric rod antenna with multi-frequency collinear apertures
An antenna. The antenna includes a first dielectric antenna rod having a first dielectric constant. The first dielectric antenna rod is coupled to a first frequency transmission source for...
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6501432 |
Primary radiator capable of achieving both low reflection and low loss
The present invention provides a primary radiator capable of achieving both loss reflection and low loss. A watertight cap made of a dielectric material having a relatively high dielectric constant...
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6489930 |
Dielectric leaky-wave antenna
A dielectric slab is arranged on one surface of a ground plane to form a transmission guide for transmitting an electromagnetic wave along the surface from one end to the other end between the...
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6459414 |
Dual-polarized and circular-polarized antennas
The invention relates to an antenna structure for radiating electromagnetic waves in predetermined polarization configurations. A dielectric substrate is provided with a copper conductive pattern...
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6417321 |
Cured fluorenyl polyimides
A thermally cured polyimide is provided, and in particular a crosslinked polyimide, comprising a fluorenyl diamine and comprising an aromatic ring having at least one C1-C10 branched or unbranched...
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6392004 |
Polyimides for high-frequency applications
An element of a gigahertz electronic device is provided comprising a polyimide selected to have an imide equivalent weight of 375 or greater. The polyimide preferably has a dielectric loss at 12.8...
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6366245 |
Device for directionally emitting and/or receiving electromagnetic radiation
A device for directionally emitting and/or receiving electromagnetic radiation includes at least one printed circuit board having at least one transmitting/receiving element, at least one focusing...
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6359590 |
Antenna feeder line, and antenna module provided with the antenna feeder line
An antenna feeder line of the invention comprises a dielectric substrate, a first main conductor layer, a second main conductor layer, through conductor groups in two rows and sub conductor layers,...
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