Accession Number:

ADA273074

Title:

Hybrid Finite Element/Waveguide Mode Analysis of Passive RF Devices

Descriptive Note:

In-House rept. for Jan 1992-Jan 1993

Corporate Author:

ROME LAB ROME NY

Personal Author(s):

Report Date:

1993-07-01

Pagination or Media Count:

89.0

Abstract:

A numerical solution for time-harmonic electromagnetic fields in two- port passive radio frequency RF devices has been developed, implemented in a computer code, and validated. Vector finite elements are used to represent the fields in the device interior and field continuity across waveguide apertures is enforced by matching the interior solution to a sum of waveguide modes. Consequently, the mesh may end at the aperture instead of extending into the waveguide. The report discusses the variational formulation and its reduction to a linear system using Galerkins method. It describes the computer code, including its interface to commercial CAD software used for geometry generation. It presents validation results for waveguide discontinuities, coaxial transitions and microstrip circuits. They demonstrate that the method is an effective and versatile tool for predicting the performance of passive RF devices. Electromagnetics, Microwave circuits, Waveguides, Finite elements, Numerical methods, Computation, RF Components, Waveguide discontinuities.

Subject Categories:

  • Electrical and Electronic Equipment
  • Numerical Mathematics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE