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searching for Antenna feed 32 found (46 total)

Long March 2E (727 words) [view diff] exact match in snippet view article find links to article

failure. Excessive forces during the launch caused a misalignment of the antenna feed horns on the Ku-band transponders, reducing the satellite's coverage

AN/FPQ-6 (1,898 words) [view diff] exact match in snippet view article find links to article

stability of 1×108. The 8.8 m diameter parabolic antenna, using a Cassegrain antenna feed, had a 0.4° beamwidth and a gain of 51 dB. Its monopulse, 5 horn feed

P-40 radar (507 words) [view diff] exact match in snippet view article find links to article

radar uses an open frame truncated parabolic antenna with a stacked antenna feed. The radar antenna is mounted on the truck used to transport it giving

Cage aerial (431 words) [view diff] exact match in snippet view article find links to article

end of the cage out of reach from the ground (depending on the details of the antenna feed, the lower end of the cage can carry a very high RF voltage).

P-19 radar (728 words) [view diff] exact match in snippet view article find links to article

both transmission and reception, each antenna being fed by a single antenna feed in a similar fashion to the P-15. The radar can rapidly shift its frequency

P-12 radar (847 words) [view diff] exact match in snippet view article find links to article

main differences between the earlier P-10 and the P-12 included a new antenna feed system with lower side lobes, reduced to 4% of the main lobe. The P-12

P-15 radar (602 words) [view diff] exact match in snippet view article find links to article

both transmission and reception, each antenna being fed by a single antenna feed. The radar can rapidly shift its frequency to one of four pre-set frequencies

AsiaSat 2 (602 words) [view diff] exact match in snippet view article find links to article

Excessive acceleration during the launch caused a misalignment of the antenna feed horns on the Ku-band transponders, reducing the satellite's coverage

Monopulse radar (2,725 words) [view diff] exact match in snippet view article find links to article

center of the antenna beam. The delta RF signals are created by pairs of antenna feed-horns located adjacent to the sum feed-horn (sum feed-horn not shown

Reflector (antenna) (635 words) [view diff] exact match in snippet view article

Reflector surface deviation Defocusing Cross polarization Feed losses Antenna feed mismatch Non-uniform amplitude/phase distributions The antenna efficiency

Rain sensor (825 words) [view diff] exact match in snippet view article find links to article

communications antennas is to trigger a rain blower on the aperture of the antenna feed, to remove water droplets from the mylar cover that keeps pressurized

Digital television adapter (1,309 words) [view diff] exact match in snippet view article find links to article

not ended yet or to connect another DVB-T2 capable device to the same antenna feed) because even older TVs usually have at least composite input; this removes

Diplexer (1,381 words) [view diff] exact match in snippet view article find links to article

voltages that occur in the huge tuned loading coils that are used in the antenna feed. Diplexers are also used for non-broadcast applications such as amateur

Inverted-F antenna (1,917 words) [view diff] exact match in snippet view article find links to article

Board without ground plane Board with ground plane Antenna feed pin Ground pin

AN/FPS-24 radar (1,151 words) [view diff] exact match in snippet view article find links to article

microseconds in duration) and was conveyed from the transmitter to the antenna feed horn via a 9 inches (230 mm) diameter rigid coaxial connector. The feed

NEAR Shoemaker (2,858 words) [view diff] exact match in snippet view article find links to article

m X-band high-gain radio antenna with a magnetometer mounted on the antenna feed, and an X-ray solar monitor on one end (the forward deck), with the other

Anaren (955 words) [view diff] exact match in snippet view article find links to article

communications antennae switch matrices for redundancy and signal routing antenna feed networks for surface, airborne, and space radars digital RF memories

Very low frequency (3,945 words) [view diff] exact match in snippet view article find links to article

the ground under the antenna. A large loading coil is required at the antenna feed point to cancel the capacitive reactance of the antenna to make it resonant

Jim Creek Naval Radio Station (948 words) [view diff] exact match in snippet view article find links to article

connected to the overhead antenna wires. Towers supporting one of two antenna feed bus cables extending along the valley floor from the transmitter building

Ulysses (spacecraft) (3,817 words) [view diff] exact match in snippet view article

sensors detected orientation. For fine attitude control, the S-band antenna feed was mounted slightly off-axis. This offset feed combined with the spacecraft

PBS North Carolina (2,381 words) [view diff] exact match in snippet view article find links to article

optic versions of each of PBS North Carolina's networks rather than an antenna feed of their local station, as Spectrum forerunner company Time Warner Cable

David M. Pozar (748 words) [view diff] exact match in snippet view article find links to article

of Wireless Systems (2000). Pozar introduced the widely used printed antenna feed techniques of aperture coupling in 1984 and proximity coupling in 1987

Galileo (spacecraft) (4,943 words) [view diff] exact match in snippet view article

boom. The search coil magnetic antennas were mounted on the high-gain antenna feed. Nearly simultaneous measurements of the electric and magnetic field

Fresnel zone antenna (2,023 words) [view diff] exact match in snippet view article find links to article

elements of an antenna array positioned in the focal point of the lens as antenna feed. With amplitude-only control, no bandwidth-limiting phase shifters are

Transmission line (6,955 words) [view diff] exact match in snippet view article find links to article

It functions similarly to a large coaxial cable. This example is the antenna feed line for a longwave radio transmitter in Poland, which operates at a

Radar (11,758 words) [view diff] exact match in snippet view article find links to article

scan, sector scan, etc. Secondary Scan: A scanning technique where the antenna feed is moved to produce a scanning beam, examples include conical scan, unidirectional

RCA AN/FPS-16 Instrumentation Radar (3,937 words) [view diff] exact match in snippet view article find links to article

improvements were made to provide a more compact and efficient monopulse antenna feed and lobe comparison waveguide circuitry, such that monopulse tracking

Radar, Anti-Aircraft No. 3 Mk. 7 (2,293 words) [view diff] exact match in snippet view article find links to article

receive antennas because they lacked a suitable way to rapidly switch the antenna feed from the transmitter to receiver. Using two reflectors was not going

List of Long March launches (1990–1999) (177 words) [view diff] exact match in snippet view article

AsiaSat Communication Excessive acceleration during the launch knocked the antenna feed horns out of alignment, reducing the coverage area of the Ku band transponders

Metamaterial antenna (8,656 words) [view diff] exact match in snippet view article find links to article

broadband phase-shifting lines, small antennas, low-profile antennas, antenna feed networks, novel power architectures, and high-directivity couplers. Loading

BBC Far Eastern Relay Station (1,138 words) [view diff] exact match in snippet view article find links to article

power supply Coupling coils for various frequencies Output coupling coil Antenna feed lines and switch matrix Antenna feedline switch Phosphor-Bronze-Copper

Mahta Moghaddam (3,065 words) [view diff] exact match in snippet view article find links to article

of Recognition: Dual frequency stacked-patch array for large aperture antenna feed (2004) Fellow of the Electromagnetics Academy (2001) NASA Certificate