Accession Number:

AD0402776

Title:

A STUDY OF WAVE PROPAGATION ON HELICES

Descriptive Note:

Corporate Author:

ILLINOIS UNIV AT URBANA ELECTRICAL ENGINEERING RESEARCH LAB

Personal Author(s):

Report Date:

1963-03-01

Pagination or Media Count:

179.0

Abstract:

The determinantal equation for a narrow helix is derived by two methods, and complex-valued solutions for the phase constant are obtained. The complete k - beta diagram Brillouin diagram is given as a function of tape width and pitch angle. In order that the solutions be continuous functions of k and beta, it is necessary to change branches of the square root which appears in the determinantal equation. A discussion of solutions which are physically admissible as complex wave solutions is given, and the phase constants corresponding to the complex wave solutions are used to represent the current on a helix. Two source problems are investigated, one an infinite helix, the other a finite helix. Comparison with experiments is made with good agreement.

Subject Categories:

  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE