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searching for Antenna aperture 16 found (28 total)

Illumination efficiency (793 words) [view diff] no match in snippet view article find links to article

Antenna [aperture] illumination efficiency is a measure of the extent to which an antenna or array is uniformly excited or illuminated. It is typical

Aperture (antenna) (3,283 words) [view diff] no match in snippet view article

In electromagnetics and antenna theory, the aperture of an antenna is defined as "A surface, near or on an antenna, on which it is convenient to make assumptions

Celestri (406 words) [view diff] exact match in snippet view article find links to article

communicate with Celestri ground stations, which would have equivalent antenna aperture sizes from 0.3 to 1 meter to support communications at rates from 2

Radiation efficiency (1,227 words) [view diff] no match in snippet view article find links to article

reflector or phased array, or antenna/aperture illumination efficiency, which relates the maximum directivity of an antenna/aperture to its standard directivity

Antenna gain-to-noise-temperature (821 words) [view diff] exact match in snippet view article find links to article

to the receive performance of both antenna and receiver. Satellite antenna aperture is closely related to the quality factor (G/T value) of the earth station

IEEE Heinrich Hertz Medal (504 words) [view diff] exact match in snippet view article find links to article

Bracewell (Stanford University, United States) for pioneering work in antenna aperture synthesis and image reconstruction as applied to radioastronomy and

YLC-2 Radar (280 words) [view diff] exact match in snippet view article find links to article

Resolution range: <100m Elevation 0.50 - +200 MTI improvement factor: 44dB Antenna aperture: 7m x 9m Antenna sidelobe level: -35dB Other features: Phased array

Variable capacitor (1,672 words) [view diff] exact match in snippet view article find links to article

quality factor and are highly linear, and therefore are suitable for antenna aperture tuning, dynamic impedance matching, power amplifier load matching and

Antenna types (8,271 words) [view diff] case mismatch in snippet view article find links to article

directional / high gain "beam antennas" are some type of an array antenna Aperture antennas Aperture antennas are made of an outer, surrounding reflective

Leaky wave antenna (3,227 words) [view diff] exact match in snippet view article find links to article

with its horizontal electric field, is the only field left at the antenna aperture, and the field polarization is then essentially pure (the discontinuity

Ronald N. Bracewell (2,515 words) [view diff] exact match in snippet view article find links to article

Electronics Engineers' Heinrich Hertz medal for pioneering work in antenna aperture synthesis and image reconstruction as applied to radio astronomy and

Parabolic antenna (4,880 words) [view diff] exact match in snippet view article find links to article

}}\right)^{2}e_{A}} where: A {\displaystyle A} is the area of the antenna aperture, that is, the mouth of the parabolic reflector. For a circular dish

Secondary surveillance radar (4,842 words) [view diff] exact match in snippet view article find links to article

produce the sum beam the signal is distributed horizontally across the antenna aperture. This feed system is divided into two equal halves and the two parts

Terahertz radiation (6,782 words) [view diff] exact match in snippet view article find links to article

which will supersede the current 5G standard around 2030. For a given antenna aperture, the gain of directive antennas scales with the square of frequency

Marconi Martello (4,976 words) [view diff] exact match in snippet view article find links to article

960 square feet (89 m2) in the S723. The combination of the larger antenna aperture and newer electronics lowering the noise factor from 4 to 2.5 dB, resulted

ASV Mark III radar (8,637 words) [view diff] exact match in snippet view article find links to article

advantage. The optical resolution of a radar system varies with the antenna aperture and inversely with the wavelength. In the case of ASV, the 28 inches