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Match
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Document |
Document Title |
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7369051 |
Method for isolating radio propagation zones
A method for using a radio frequency identification (RFID) system including a transponder, an antenna, and a reader, the antenna coupled to the reader, the antenna and the reader for transmitting a...
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7369050 |
Curtain for isolating radio propagation zones
A curtain for a radio frequency identification (RFID) system including a transponder, an antenna, and a reader, the antenna coupled to the reader, the antenna and the reader for transmitting a...
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7369049 |
System for isolating radio propagation zones
A radio frequency identification (RFID) system including a transponder, an antenna, and a reader, the antenna coupled to the reader, the antenna and the reader for transmitting a radio signal to...
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6885352 |
Wireless communications antenna assembly generating minimal back lobe radio frequency (RF) patterns
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)...
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6088002 |
Antenna system
An antenna system including a support structure and an antenna assembly having an open grid reflector structure in a closed ring and dipole elements. The antenna assembly includes a number of...
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4626863 |
Low side lobe Gregorian antenna
A microwave antenna comprising the combination of a paraboloidal main reflector; a subreflector located such that the paraboloidal main reflector and the subreflector have a common focal point...
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4342036 |
Multiple frequency band, multiple beam microwave antenna system
A single microwave-reflective antenna "dish" can be used in combination with a plurality of multiple-beam microwave feed arrays to generate or receive multiple-beam-path microwave radiation in...
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3649934 |
QUASI-OPTICAL LOW-PASS ABSORPTION TYPE FILTERING SYSTEM
Microwaves including millimeter waves and possibly infrared systems are fered by reflectively focusing and refocusing input electromagnetic waves between sets of parallel metal plates the end...
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3523251 |
ANTENNA STRUCTURE WITH AN INTEGRATED AMPLIFIER RESPONSIVE TO SIGNALS OF VARIED POLARIZATION
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3407404 |
Directive microwave antenna capable of rotating about two intersecting axes
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3226722 |
Probe fed pillbox antenna with pattern shaping pins at aperture
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3140491 |
Diffraction shield consisting of notched ring which frames passive reflector
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2991473 |
Scanning antenna system for horizontally and vertically polarized waves
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2972743 |
Combined infrared-radar antenna
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2846680 |
Directive antennas
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2808586 |
Arrangement for controlling edge diffraction of microwaves
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2778016 |
Wave guide antenna
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2759182 |
Directive antenna systems
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2750588 |
Wave guide terminating device
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2702859 |
Conical reflector
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2668869 |
Radio viewing system
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2643338 |
Conical scan antenna
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2639384 |
Method and device for focusing of radiations by means of stationary reflector and refractor gratings
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2635191 |
Antenna
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2627028 |
Antenna system
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2624836 |
Radio noise transmitter
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2608658 |
Television antenna construction
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2605416 |
Directive system for wave guide feed to parabolic reflector
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2595271 |
Antenna lobe shifting device
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2594328 |
Antenna switching system
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2579140 |
Wave projector
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2572088 |
Ultra high frequency coded transmitter system utilizing stored energy received by the system
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2571129 |
Scanning antenna system
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2570599 |
Aerial array and feeder arrangement for use therewith
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2552146 |
Duplex directive antenna system
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2542844 |
Microwave directive antenna
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2541806 |
Beam antenna system
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2539657 |
Parabolic antenna system for radio locators
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2539511 |
Radar system test equipment
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2534289 |
Wave guide impedance matching section
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2531455 |
Directive antenna structure
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2531454 |
Directive antenna structure
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2530098 |
Antenna
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2522562 |
Antenna system
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2520945 |
Wave transmission apparatus
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2514425 |
Radio relaying
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2492951 |
Antenna system
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2491493 |
Dipole antenna
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2486620 |
Antenna system for short waves
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2452349 |
Directive radio antenna
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