Author :
Curtis, Walter L.
Author_Institution :
Boeing Airplane Company, Seattle, WA, USA
fDate :
5/1/1960 12:00:00 AM
Abstract :
The radiation fields of the Archimedes spiral are derived by approximating the spiral with a series of semicircles. The calculated patterns are shown to have excellent correlation with experimentally determined patterns. It is shown that the high-frequency limit is determined by the feed configuration and that the low-frequency limit occurs when the outside diameter is a little greater than a half wavelength.
Keywords :
Spiral antennas; Aerospace industry; Aircraft; Antenna accessories; Antennas and propagation; Current distribution; Feeds; Helium; Length measurement; Magnetic analysis; Spirals;
Journal_Title :
Antennas and Propagation, IRE Transactions on
DOI :
10.1109/TAP.1960.1144850
