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Document Title |
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7616164 |
Optimized capacitive dipole antenna
A capacitively coupled dipole antenna is coupled to a substrate such that a capacitative portion of the antenna spans a void in the substrate.
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7463207 |
High-efficiency horns for an antenna system
A multiple-beam antenna system includes at least one reflector and a cluster of horns for feeding the reflector. A horn of the cluster of horns is configured for providing transmission and...
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7443358 |
Integrated filter in antenna-based detector
An antenna system includes a dielectric structure formed on a substrate; an antenna, partially within the dielectric structure, and supported by the dielectric structure; a reflective surface...
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7190324 |
Low-profile lens antenna
This invention relates to a low-profile lens antenna. In particular, this invention relates to a low-profile lens antenna for use in a depression in a surface, e.g. a concavity in the ground. A...
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6914568 |
Integral antenna and radio system
A Planar Inverted F Antenna (PIFA) and a radio module integrated into a single module. The present invention permits the PIFA to be removably secured on the top of a radio chip module. In one...
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6864850 |
Multibeam antenna
When a converter 14 is rotated via a rotation mechanism 17 , the arrangement inclination angle of two primary radiators 15 a and 15 b can be adjusted in the range of 0 to 20 deg. with...
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6828939 |
Multi-band antenna
The present invention reveals a multi-band antenna comprising a dielectric plate, a first metal foil and two second metal foils, where the first metal foil and the second metal foils are adhered to...
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6573873 |
Stepped horn with dielectric loading
A horn for direct radiation or for use as a reflector feed is for operation at disparate frequencies. The horn has a conventionally LSE 1,0 distribution at the lower of the two frequencies, and...
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6452561 |
High-isolation broadband polarization diverse circular waveguide feed
A high-isolation broadband polarization diverse circular waveguide feed apparatus capable of supporting any arbitrary linear, right-hand circular, left-hand circular or elliptically polarized...
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6437753 |
Primary radiator suitable for size reduction and preventing deterioration of cross polarization characteristic
A dielectric feeder has a holding portion inserted into the interior of a waveguide and a horn-shaped radiating portion having different radiation angles in major- and minor-axis directions. A...
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6208310 |
Multimode choked antenna feed horn
An antenna feed horn (10) for a satellite antenna array that includes multiple chokes (34, 36, 40, 42, 44) that provide effective control of the horn aperture mode content to generate radiation...
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6107897 |
Orthogonal mode junction (OMJ) for use in antenna system
A multiple beam antenna system including a reflector that is at least partially parabolic in one dimension, a pair of dielectric lenses, and a pair of waveguides. Multiple received beams are...
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6014110 |
Antenna and method for receiving or transmitting radiation through a dielectric material
A low profile, receiving and/or transmitting antenna is adapted to be mounted onto an interior portion of a building or other structure to receive or transmit radiation through a first dielectric...
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5973653 |
Inline coaxial balun-fed ultrawideband cornu flared horn antenna
The inline coaxial balun fed cornu flared horn antenna is formed by transitioning a coaxial transmission line to a parallel-plate transmission line with a Klopfenstein impedance profile and...
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5883604 |
Horn antenna
Horn antenna (10) produces an electromagnetic energy field and includes waveguide (12) for generating an electromagnetic field having an electric field (52, 54, 56) and magnetic field (58 and 60)....
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5757331 |
Leakage dielectric waveguide and plane antenna using said leakage dielectric waveguide
A leakage dielectric waveguide includes a housing made of plane-shaped electrical conductors located parallel to each other, and a dielectric strip for propagating a high-frequency wave between the...
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5642121 |
High-gain, waveguide-fed antenna having controllable higher order mode phasing
A diverging shall antenna fed by a waveguide supplying TE 11 mode is described. A dielectric rod partially contained within the waveguide converts the TE 11 mode to a dominant or HE 11 mode. The...
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5604505 |
Phase tuning technique for a continuous transverse stub antenna array
A continuous transverse stub antenna array that comprises phase tuning sections disposed between adjacent stub elements. The antenna array includes a sheet of dielectric material having a plurality...
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5218373 |
Hermetically sealed waffle-wall configured assembly including sidewall and cover radiating elements and a base-sealed waveguide window
Directed millimeter wave radiation from internal elements of a microwave circuit through the housing cover, housing base, and side walls of a hermetically-sealed MMIC integrated subsystem assembly...
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5166698 |
Electromagnetic antenna collimator
A dielectric inset mountable within a conical horn antenna for focusing an impinging electromagnetic wave front as a planar wave front at an attached wave guide. In one construction a homogeneous...
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5117240 |
Multimode dielectric-loaded double-flare antenna
A small aperture horn antenna comprising an outer conical shell and interiorly of which are formed at least first and second conically flared, dielectric-coated stages of differing flare angles...
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4918411 |
Dielectric aperture assembly and method for fabricating the same
A fabricated dielectric aperture assembly includes a first layer of electrically conductive material having an opening therethrough to define a first aperture, a second layer of electrically...
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4792814 |
Conical horn antenna applicable to plural modes of electromagnetic waves
A conical horn antenna applicable to plural modes of electromagnetic waves is substantially composed of a feed waveguide positioned on the base end side and feeding a dominant mode of an...
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4774520 |
Primary microwave source for a conical scanning antenna and an antenna containing it
A microwave primary source with a phase conical scan having a conical horn containing an obstacle which gives rise to a wave that propagates in the TE 21 mode in quadrature with the TE 11 ...
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4760404 |
Device and method for separating short-wavelength and long-wavelength signals
A device for separating signals in the long or radar wavelength bands from signals in the short or infrared to ultraviolet wavelength bands which occupy a common area. A waveguide for directing...
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4707702 |
Circularly polarizing antenna feed
A circularly polarizing antenna feed comprises a feed waveguide having a short circuit reflecting plate at one end and a radiating horn at the other, a wave exciter for launching linearly polarized...
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4686537 |
Primary radiator for circularly polarized wave
A primary radiator for circularly polarized wave in accordance with the present invention is equipped with conductor projections along the inner wall of the horn antenna in order to convert...
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4682180 |
Multidirectional feed and flush-mounted surface wave antenna
The present invention relates to a multidirectional feed which can be used by itself or preferably incorporated within a surface wave structure to form a flush-mounted antenna on, for example, a...
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4667205 |
Wideband microwave antenna with two coupled sectoral horns and power dividers
A wide-band microwave antenna capable of radiating over a wide angular field is fed by a rectangular wave guide and includes a first sectoral horn coupled to the rectangular wave guide. The first...
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4636798 |
Microwave lens for beam broadening with antenna feeds
A microwave lens broadens the radiation pattern of an antenna feedhorn so as to result in improved illumination of the reflector surface. The lens, constructed of dielectric material in the shape...
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4571593 |
Horn antenna and mixer construction for microwave radar detectors
A horn antenna construction, particularly for use in microwave radar detector circuits, comprises a molded horn element that is open at its bottom side, with a ridge molded into its flared top...
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4568943 |
Antenna feed with mode conversion and polarization conversion means
The configuration of a waveguide antenna feed is determined by a shaped body of solid dielectric material which is coated with a conductive material. The conductive material functions as a...
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4558324 |
Multibeam lens antennas
Multibeam lens antennas are often circular, and utilize propagation in disk-shaped parallel-surface regions. There is phase correction through terms in θ 2 , where θ is the angle of an aperture...
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4511868 |
Apparatus and method for transfer of r.f. energy through a mechanically rotatable joint
The wide ends of two similar horn structures are juxtaposed and joined by a rotary bearing extending thereabout which permits relative rotational motion between the two horn structures. A field...
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4510469 |
Selective waveguide mode converter
A mode converter is disclosed which selectively generates a predetermined higher order mode(s) from an incident fundamental mode. This mode converter comprises a dielectric region having an...
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4447811 |
Dielectric loaded horn antennas having improved radiation characteristics
An H-plane sectoral horn antenna is loaded with low-loss dielectric inserts n alternative embodiments so as to reduce beamwidth, increase axial gain and to achieve non-mechanical beam scanning. In...
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4318103 |
Compact radar detector and range extender
A radar detector adapted to be carried by a motor vehicle, includes a housing enclosing a compact horn antenna having a tapering wall portion which defines a cavity extending from an aligned...
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4201956 |
Arrangement for the generation and radiation of microwaves
Apparatus for the generation and radiation of microwave radiation including a microwave oscillator having a cavity resonator directly coupled with the input of a horn resonator by way of a first...
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4143377 |
Omnidirectional antenna with a directivity diagram adjustable in elevation
An antenna of the discone type is omnidirectional in bearing and has a diagram whose directivity in elevation can be adjusted. At the apex end of each cone a dielectric disc of predetermined...
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4141015 |
Conical horn antenna having a mode generator
A conical horn antenna is disclosed having dual dielectric bands mounted therein for improving the rotational symmetry or elipticity of the radiated beam as well as the efficiency. The first and...
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4138683 |
Short radiating horn with an S-shaped radiating element
The rear wall of a horn antenna is a substrate with a phase shifter circuit thereon. Power from the phase shifter is radiated by the horn via a probe that has the general shape of a hook.
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4112432 |
Square horn antenna having improved ellipticity
A multisided horn antenna such as a square horn is disclosed having an improved axial ratio circular polarization or ellipticity. Ellipticity of a square horn antenna is improved by placing a...
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4087822 |
Radio frequency antenna having microstrip feed network and flared radiating aperture
A radio frequency antenna having a microstrip feed network and a flared radiating structure directly fed by such microstrip feed network. A wedge-shaped dielectric structure is disposed in the...
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4065772 |
Broadbeam radiation of circularly polarized energy
A horn for radiating circularly polarized energy includes a rear launcher section commencing with a double-ridged cross section and ending at the horn flare with a square cross section with the...
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4051476 |
Parabolic horn antenna with microstrip feed
An antenna element is disclosed having a printed circuit parallel plate region with a parabolically shaped reflecting wall and a flared radiating section. The flared radiating section is disposed...
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3995274 |
Cylindrically shaped leaky wave antenna
A cylindrically shaped leaky wave antenna utilizing a cylindrically shaped printed grid antenna fed by a curved wave guide feed array utilizing anti-phase edge cut slots cut in accordance with a...
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3935577 |
Flared microwave horn with dielectric lens
A dielectric lens for a flared microwave horn, the lens correcting the phase error introduced in microwaves passing through the horn. The lens comprises a plurality of parallel dielectric discs...
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3918064 |
Wide angle antenna system
An antenna employing electronically controlled radiating elements that produce a primary illumination of a circular ring source aperture. The aperture is fed by a parallel plate waveguide that...
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3916414 |
Antenna system for primary and secondary radar
A common antenna system for a primary and a secondary radar transceiver is described. The primary feeder connected to the primary transceiver is provided with two probes for transmitting and...
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3916415 |
Antenna scanning
3. An antenna system comprising an entire antenna assembly for establishing a directive electromagnetic energy pattern, a first means for rotating said assembly in its entirety about one axis...
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