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7598920 |
Input device of two orthogonal polarized-wave waveguide type, and radio wave receiving converter and antenna device using the input device
A radio wave receiving converter is provided with a circular waveguide unit to which a vertically-polarized wave and a horizontally-polarized wave are input, first and second board holding units...
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7535428 |
Flat-aperture waveguide sidewall-emitting twist-reflector antenna
A flat aperture waveguide sidewall-emitting twist-reflector (FAWSET) antenna, having an E-plane sectoral flare having a depth merely the H-plane width of the waveguide. Extending the E-plane...
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7501909 |
Wide-bandwidth polarization modulator for microwave and mm-wavelengths
A polarization modulator device for modulating a polarization of an electromagnetic wave includes a corrugated metallic waveguide having an interior cylindrical opening defined therein and situated...
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7474173 |
Cross-polar and co-polar transceiver
A transceiver allowing transmission of a co-polar transmit signal and simultaneous reception of co-polar receive and cross-polar receive signals. An integrated orthogonal mode transducer and...
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7439925 |
Dual band corrugated feed horn antenna
A dual band antenna with a corrugated feed horn comprises a waveguide and a feed horn assembly. The feed horn assembly comprises at least two portions. Two portions each have at least a cylindrical...
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7414491 |
Method and apparatus for changing the polarization of a signal
A method and apparatus for changing the polarization of an input signal includes propagating a polarized input signal having orthogonal E-field components by at least one surface each having a...
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7408427 |
Compact multi-frequency feed with/without tracking
A method and apparatus forming an efficient and compact waveguide feed with all components for processing signals in multi-frequency band antenna feeds with single/dual linear/circular...
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7397323 |
Orthomode transducer
A waveguide orthomode transducer. In a first layer a turnstile junction having a main waveguide and four waveguide ports, and four hybrid tees each have an e-port, two opposed side-ports, and an...
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7394335 |
Polarized high-order mode electromagnetic wave coupler and its coupling method
The a polarized high-order mode electromagnetic wave converter and its coupling method, uses bifurcate structure to divide the input wave into two signals with the same amplitude but opposition...
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7378914 |
Solid-state high-power oscillators
Embodiments of High-Power Millimeter-Wave Oscillators are generally described herein. Other embodiments may be described and claimed. In some embodiments, the oscillator includes a polarized...
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7304552 |
Waveguide for use in dual polarisation probe system having a signal reflector and rotator provide differential phase shift
A waveguide for use with a dual polarization waveguide probe system is described which provides an improved frequency response across a desired frequency range (10.7 to 12.75 GHz) and particularly...
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7280080 |
Multiple beam feed assembly
A multi-beam feed assembly having a feed assembly housing with a plurality of input waveguide(s) formed in a front face. The housing may be adapted for manufacture via die casting. The housing also...
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7239285 |
Circular polarity elliptical horn antenna
A relatively low cost, easy to install and aesthetically pleasing digital video broadcast from satellite (DVBS) elliptical horn antenna designed as part of a reflector antenna system to receive...
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7215222 |
Dual polarization waveguide probe system with wedge shape polarization rotator
There is disclosed herein a waveguide rotator for use with a dual polarization waveguide probe system. The waveguide has an internal structure that protrudes into the waveguide such that a first...
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7212087 |
Twisted waveguide and wireless device
H plane and E plane of a second rectangular waveguide element are inclined at an angle of 45° with respect to H plane and E plane of a first rectangular waveguide element. A connection element...
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7170366 |
Waveguide to microstrip transition with a 90° bend probe for use in a circularly polarized feed
A first waveguide to microstrip transition, the waveguide having a top, a bottom, a first sidewall, a second sidewall and a closed end. A transition slot normal to a longitudinal axis of the...
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7151494 |
Reflective and transmissive mode monolithic millimeter wave array system and oscillator using same
An oscillator. In the illustrative embodiment, the oscillator includes an ortho-mode feed; a reflective amplifier array adapted to be illuminated by the feed with an input wavefront with a first...
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7132907 |
Frequency-separator waveguide module with double circular polarization
The module comprises an input/output access point at a first end of a waveguide with a square cross section, called a square waveguide, two access points made of waveguides with a rectangular cross...
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7091804 |
Rotary joint
The present invention aims at providing a rotary joint which is of a thin type and has broad band characteristics and which is low in loss and is excellent in power resistance as well. In order to...
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7078985 |
Device for separating transmission and reception signals of different polarizations
The invention proposes a transmitting/receiving device comprising at least one transition zone which comprises a means of transforming a polarized wave of a first polarization into an electrical...
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7019603 |
Waveguide type ortho mode transducer
An object of the present invention is to obtain a waveguide type polarizer, which enables miniaturization thereof, shortening of an axis, and broad band promotion, and which has high performance....
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7009464 |
Waveguide polarizer differential phase error adjustment device
A phase error adjustment device configured to connect to an end of a waveguide polarizer and correct phase errors that the waveguide polarizer might generate. In accordance with this embodiment,...
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6995628 |
Waveguide twist having quadrate sections
A waveguide unit including a vertically polarized waveguide, a horizontally polarized waveguide, and a waveguide type-polarized wave converter interposed between said waveguides. The waveguide...
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6980065 |
Low noise block PCB mounting system using non-linear insertable probes
A low nosie block (LNB) system is described which facilitates the mount of printed circuit board (PCBs) with probes attached to an LNB housing. The LNB housing has, in a preferred arrangement, two...
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6970138 |
Polarization plate
The present invention discloses a system and method by which radio transceiver equipment may be coupled to antenna equipment polarized in either of two orthogonal polarizations without requiring...
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6963253 |
Broadband high precision circular polarizers and retarders in waveguides
A retarder is presented for application in systems that transmit radiation through waveguides, such as microwave or millimeter-wave systems. The retarder is a compound device comprising multiple...
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6937203 |
Multi-band antenna system supporting multiple communication services
An antenna comprising a reflector having a reflector surface profile for reflecting a plurality of signals comprising a plurality of communication bands; a multi-depth corrugated horn assembly for...
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6906676 |
FSS feeding network for a multi-band compact horn
A feed structure ( 105 ) for a horn antenna ( 100 ). The feed structure can include a first waveguide ( 110 ) and a second waveguide ( 115 ) having a first portion at least partially disposed...
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6879221 |
Waveguide twist
In a waveguide twist which provides orthogonal rotation of both direction and polarization, TE 10 —mode energy in waveguide W 1 is coupled via iris I 1 to a transformer cavity capable of...
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6876272 |
Reflection-mode, quasi-optical grid array wave-guiding system
The present invention discloses a system for integrating a quasi-optical reflection-mode array into a wave-guiding enclosure. The system includes a quasi-optical reflection mode array and a...
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6873220 |
Method and apparatus for receiving linear polarization signal and circular polarization signal
The present invention discloses a method and apparatus for simultaneously receiving linear polarization signals and circular polarization signals. First, the present invention gathers a plurality...
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6842085 |
Orthomode transducer having improved cross-polarization suppression and method of manufacture
An orthomode transducer includes a first waveguide section, a second waveguide section coupled to the first waveguide section, and a third waveguide section coupled to the first and second...
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6839543 |
Method and system for detecting and discriminating multipath signals
A wireless communication system that utilizes a circularly polarized transmitting antenna with dual orthogonal circularly polarized receiving antenna. According to some embodiments, the present...
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6816026 |
Orthogonal polarization and frequency selectable waveguide using rotatable waveguide sections
A selectable waveguide transitions between two positions to at least two independent signals by their polarization or frequency. This waveguide consists of dissimilar wave sections coupled to an...
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6812807 |
Tracking feed for multi-band operation
An antenna feed system comprises a single horn having corrugations and four evenly spaced waveguide ports on sides of a single one of the corrugations. A combiner network receives signals at...
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6812804 |
Broadband polarization filter
A polarization filter for a high frequency wave guided in a waveguide has an entry section in which wave types that are orthogonally polarized in relation to one another are capable of propagating....
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6768395 |
Polarization separating filter having a polarization separating plate
A polarization separating filter, which can be integrated into a planar hollow waveguide circuit, is comprised of a central hollow waveguide ( 1 ), in which two orthogonal, linearly polarized waves...
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6750735 |
Waveguide polarizer
The waveguide polarizer is a device for microwave antenna systems consisting of a waveguide section, with circular cross-section, being equipped with two terminal flanges for connection to other...
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6727779 |
Converter for satellite communication reception having branching waveguide with L-shape probes
A converter for satellite communication reception which reduces signal losses and has a simplified assembling work is disclosed. In operation, orthogonal bipolarized signals transmitted from a...
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6727776 |
Device for propagating radio frequency signals in planar circuits
A device for efficient propagation of radio frequency (RF) signals, including concurrent transmission of signals of different polarizations, includes a waveguide having an input port for receiving...
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6724277 |
Radio frequency antenna feed structures having a coaxial waveguide and asymmetric septum
A waveguide feed structure having a coaxial transmission line. A conductive, planar septum is disposed in, and along a diameter of, the transmission line. A feed port is electrically coupled to the...
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6720932 |
Multi-frequency antenna feed
A multi-frequency antenna feed for incorporation into a single unit which combines at least two waveguides to provide simultaneous reception and/or transmission of signals in at least two separate...
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6720840 |
Polarization rotationer
A waveguide structure that has two rotating parts changes the polarization of a radio frequency signal in two steps or one step. The waveguide structure includes input and output waveguides and a...
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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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6693497 |
Device for converting circularly oscillating electromagnetic radiation beams into linearly oscillating radiation beams
A device is disclosed for converting a circularly polarized electromagnetic radiation into linearly polarized electromagnetic radiation. The device includes a depolarizer with depolarizing elements...
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6677911 |
Antenna feed assembly capable of configuring communication ports of an antenna at selected polarizations
The present invention provides antenna feed assemblies that allow the common waveguide portion of an antenna feed assembly to be rotated independent of a fixed communication waveguide. When...
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6664866 |
Generator of circularly polarized wave
The present invention aims at providing a circular waveguide polarizer with high performance and low cost. The circular waveguide polarizer is realized by arranging a plurality of side grooves 12 ...
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6661309 |
Multiple-channel feed network
A multi-channel feed network includes a main waveguide section (either square or circular) for connection to a satellite antenna for propagating two orthogonal polarizations. The feed network...
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6624792 |
Quad-ridged feed horn with two coplanar probes
The invention utilizes two nominally orthogonal probes to couple selectively to two orthogonal modes propagating in a microwave waveguide and horn. The waveguide and horn utilize internal ridges to...
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6624715 |
Ultrawide-band linear-circular polarization converter
In an ultrawide-band linear-circular polarization converter, in a noncircular waveguide which has negative-phase characteristics in which a phase gradually decreases in accordance with an increase...
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