Uniform theory of diffraction

In numerical analysis, the uniform theory of diffraction (UTD) is a high-frequency method for solving electromagnetic scattering problems from electrically small discontinuities or discontinuities in more than one dimension at the same point.^[1] UTD is an extension of Joseph Keller's geometrical theory of diffraction (GTD)^[2] and was introduced by Robert Kouyoumjian and Prabhakar Pathak in 1974.^[1]^[3]

The uniform theory of diffraction approximates near field electromagnetic fields as quasi optical and uses knife-edge diffraction to determine diffraction coefficients for each diffracting object-source combination. These coefficients are then used to calculate the field strength and phase for each direction away from the diffracting point. These fields are then added to the incident fields and reflected fields to obtain a total solution.

References

^ ^a ^b R. G. Kouyoumjian and P. H. Pathak, "A uniform geometrical theory of diffraction for an edge in a perfectly conducting surface," Proc. IEEE, vol. 62, pp. 1448–1461, November 1974.
^ J. B. Keller, "Geometrical theory of diffraction", J. Opt. Soc. Am., vol. 52, no. 2, pp. 116–130, 1962.
^ Pathak, P. H. (2003). Brief summary of research in high frequency methods at OSU-ESL. Antennas and Propagation Society International Symposium. doi:10.1109/APS.2003.1220345.

External links

Overview of Asymptotic Expansion Methods in Electromagnetics

This computational physics-related article is a stub. You can help Wikipedia by expanding it.

This electromagnetism-related article is a stub. You can help Wikipedia by expanding it.

[utd-1] R. G. Kouyoumjian and P. H. Pathak, "A uniform geometrical theory of diffraction for an edge in a perfectly conducting surface," Proc. IEEE, vol. 62, pp. 1448–1461, November 1974.

[2] J. B. Keller, "Geometrical theory of diffraction", J. Opt. Soc. Am., vol. 52, no. 2, pp. 116–130, 1962.

[osu-hf-3] Pathak, P. H. (2003). Brief summary of research in high frequency methods at OSU-ESL. Antennas and Propagation Society International Symposium. doi:10.1109/APS.2003.1220345.

[1]

[2]

[3]

Uniform theory of diffraction

Hub talks

Uniform theory of diffraction

Uniform theory of diffraction

Uniform theory of diffraction

Hub overview

Add your contribution

Inside this hub

Media Collections

Timelines

Articles

Notes collections

Notes

Days in Chronicle

Root Wikipedia Article

Uniform theory of diffraction

See also

References

External links

Add your contribution

Related Hubs