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.
No takes yet. Share an insight, caveat, or question.
J. D. Kraus (1948) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: