"A",
"B",
"C",
"D",
"E"/"F",
"G"/"H",
"I"/"J"/"K"/"L",
"M"/"N"/"O",
"P"/"Q",
"R",
"S",
"T"/"U"/"V"/"W"/"X"/"Y"/"Z"
Previous section of "A" Terms
Antenna: A device used to radiate or receive electromagnetic
energy (generally RF). [Antenna Manufacturers]
Antenna bandwidth: The frequency range over which a given
antenna will accept signals.
Antenna feed: Means by which power is transferred to and from
the antenna and the connecting transmission line.
Antenna gain: The effectiveness of a directional antenna as compared
to a standard nondirection antenna. It is usually expressed as
the ratio in decibels of standard antenna input power to directional
antenna input power that will produce the same field strength in the
desired direction. For a receiving antenna, the ratio of signal power
values produced at the receiver input terminals is used. The more
directional an antenna is, the higher is its gain.
Aperture: The portion of the plane surface area near the antenna perpendicular to the direction of maximum radiation through which the major portion of the radiation passes. The effective and/or scattering aperture area can be computed for wire antennas which have no obvious physical area.
Array: Several simple antennas, usually dipoles, used together to
control the direction in which most of the antennas power is radiated.
Attenuation: Power loss resulting from conductor resistance and
dielectric loss within the insulating material used to separate the
conductors. [Manufacturers of RF Attenuator]
Azimuth: An angle measured in a horizontal plane from a known
reference point.
Antenna "B" Terms and definitions
Key Words: Antenna, Dictionary, Glossary, Terms, Means, Meaning, What is,
