Title :
Helical Beam Antennas for Wide-Band Applications
Author_Institution :
Communications Laboratory, Ohio State University, Columbus, Ohio
Abstract :
The helical beam antenna has inherent broad-band properties. Over a wide frequency band the pattern shape, circularity of polarization, and terminal impedance are relatively stable. Measured performance data are presented for a medium-gain helical beam antenna of optimum dimensions with a bandwidth of about 1.7 to 1. A high-gain broadside array of four such helices is described. Other wide-band applications of helical beam antennas, including omnidirectional types, are also discussed.
Keywords :
Antenna measurements; Broadband antennas; Coaxial components; Conductors; Directional antennas; Feeds; Frequency; Helical antennas; Impedance measurement; Polarization;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1948.231603
