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Time-domain analysis of pulse-excited reflector antennas

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2 Author(s)
Rego, C.G. ; Dept. of Electron. Eng., Fed. Univ. of Minas Gerais, Brazil ; Hasselmann, F.J.V.

In this article, the time-domain physical optics (TDPO) is extended with the edge equivalent currents to include the non-uniformity of the induced currents near a reflector rim. These equivalent currents are obtained from the frequency-domain Michaeli's (1984, 1985, 1986) currents by means of an analytical signal representation used to transform the corresponding frequency-domain radiating fields into the time-domain. The TDPO plus time-domain equivalent edge currents (TDPO+EEC) is implemented to perform the analysis of a hyperbolical reflector antenna excited by a Rayleigh pulse and the results are compared with those obtained from the TD-UTD extended with a higher order slope diffraction term.

Published in:

Antennas and Propagation Society International Symposium, 2000. IEEE  (Volume:4 )

Date of Conference:

16-21 July 2000