Friday, January 21, 2011

Antennas


1.    Antennas are mainly categorized into some major classifications such as antennas for communications, car antenna, mobile phone antenna, TV antenna including other antennas made for different functions and purposes. Antennas are classified as per different technologies used for different innovations. Mostly, antennas are categorized into microwave antenna (also known as parabolic antenna), radio telescope, television antenna (also known as TV aerial), antenna towers, dish antenna, horn antenna, dipole antenna, omni-directional antenna, and directional antenna (also known as beam antenna). Now in this modern age, TV antennas are becoming obsolete, especially after arrival of cabled television services which don’t require any sort of antenna to mount on your rooftops. Antennas are also categorized frequency wise such as yagi-uda antenna, wullenweber, wokfi, whip antenna, vivaldi-antenna, umbrella antenna, turnstile antenna, TT-aerial, television receive-only, television antenna, targeting tower, T2FD antenna, synthetic aperture radar, super-dish, smart antenna, slot antenna, shortwave relay station, short backfire antenna, sector antenna, satellite dish, rubber ducky antenna, rhombic antenna, regenerative loop antenna, reflector, reflective array antenna, reference antenna, rectenna, random wire antenna, quad antenna, parabolic antenna, periscope antenna, patch antenna, omnidirectional antenna, offset dish antenna, monopole antenna, micro-strip antenna, meta-material antennas, mast radiator, low-gain antenna, loop antenna, log-periodic antenna, JJ-pole antenna, isotropic radiator, inverted vee antenna, image antenna, hrs antenna, high-gain antenna, helical antenna, fractal antenna, folded unipole antenna, folded inverted conformal antenna, fan-beam antenna, feed horn, evolved antenna, dual-band blade antenna, discone antenna, directional array, directional antenna, dipole antenna, dielectric wireless receiver, dielectric resonator, dielectric resonator antenna, crossed field antenna, collinear antenna array, coaxial antenna, choke ring antenna, cage aerial, cassegrain reflector, cassegrain antenna, cantenna, biconical antenna, beverage antenna, AWX antenna, AN/SPQ-11, AN/FLR-9, and ALLISS and adcock antenna.

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