Accession Number:

ADA285337

Title:

Fields and Waves in Elliptic Waveguides

Descriptive Note:

Corporate Author:

FYSISCH EN ELEKTRONISCH LAB TNO THE HAGUE (NETHERLANDS)

Personal Author(s):

Report Date:

1994-02-01

Pagination or Media Count:

17.0

Abstract:

In order to calculate cut-off wavelengths of elliptic waveguides without trying to solve the roots of Mathieu functions, a first order approximation is derived. The elliptic waveguide is decomposed in two circular waveguides for even and odd mode propagation. The cut-off wavelengths of these waveguides are calculated and used as approximate cut-off wavelengths of the elliptic waveguide. Cut-off wavelengths for the dominant TE11-mode can be approximated with a maximum error of 5 percent for all eccentricities. The approximation is also valid for the other modes for small eccentricities. Wave guides, Elliptic waveguides, Wave lengths in transmission lines, Analysis of waves.

Subject Categories:

  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE