Design formulas for helix dispersion shaping
- 1 December 1969
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electron Devices
- Vol. 16 (12) , 1010-1014
- https://doi.org/10.1109/t-ed.1969.16901
Abstract
A simple method of calculating effects of various boundaries around the helix on the dispersion relation and the interaction impedance is presented. The analytical technique is based on the use of equivalent circuit parameters derived from rigorous field analyses. The main advantage of this method is that effects of various perturbing objects (dielectrics, shields, etc.) can be calculated independently, regardless of the model of the unperturbed system. Equivalent circuit parameters are obtained for helices with several different forms of perturbing boundaries, including wedge-shaped dielectric rods, conducting boundaries, longitudinally conducting wires and fins, and combinations of these. The method of analysis is versatile so that the dispersion relation for any one particular form of the helix may be calculated from known characteristics of another using only three sets of universal curves.Keywords
This publication has 2 references indexed in Scilit:
- Circuit Theory of Coupled Transmission SystemsJournal of Applied Physics, 1962
- Fundamental interaction impedance of a helix surrounded by a dielectric and a metal shieldIRE Transactions on Electron Devices, 1962