State-Space Solution of Transient Electromagnetic Problems.
Abstract
The transient excitation of a cavity through an aperture is used to illustrate the state-space solution of transient electromagnetic problems. Depending on whether the E- or the H-formulation is used, the effect of the aperture can be accounted for by a magnetic current in invoking the induction theorem or by an electric current in invoking the equivalence theorem. The governing second-order differential equation is converted into a set of first-order state equations by defining three new state variables in addition to an appropriate vector potential. These state equations are soved by the method of moments. Two cases are considered: parallel polarization and perpendicular polarization. Some significant singularities for the parallel-polarization case are found and the electric intensities as functions of time at two locations in the cavity are computed for a step excitation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1977
- Accession Number
- ADA037087
Entities
People
- David K. Cheng
Organizations
- Syracuse University