TC 9-64 _________________________________________________________________________
Connecting the center of an antenna to a transmission
line, which is then connected to the final (output) stage
The ratio of voltage to current at any given point on a
transmission line. Represented by a value of impedance.
A type of transmission line that contains two concentric
An array with all the elements in a straight line.
Maximum radiation is perpendicular to the axis of the
An array system that uses the characteristics of more
than one array.
The colors of light produced when two of the primaries
(secondary) colors of
are mixed in overlapping beams of light. The
complementary colors of light are magenta, yellow, and
A wave produced by combining two or more pure tones
at the same time.
Longitudinal waves that have been compressed (made
more dense) as they move away from the source.
The opposite of resistance in transmission lines. The
minute amount of resistance that is present in the
insulator of a transmission line.
Another term for DRIVEN ARRAY.
The I2R loss in a conductor caused by the current flow
through the resistance of the conductor.
A half-wave antenna with a reflector consisting of two
flat metal surfaces meeting at an angle behind the
A network of wire that is connected to a quarter-wave
antenna at one end and provides the equivalent of an
The peak of the positive alternation (maximum value
above the line) of a wave.