Sensor and Simulation Notes Note 340 May 1992 - A Simple Model of Small-Angle TEM Horns
نویسندگان
چکیده
When designing an antenna system for radiating a transient pulse, it is necessary to have a simple model for each of the competing antennas, in order to make comparisons. Previous work on TEM horns has provided numerical models, however no simple model exists. The purpose of this paper is to provide such a simple model. The model consists of approximating the TEM horn by a continuum of electric and magnetic dipoles, and summing their contributions. High frequency contributions are accounted for approximately by including an additional step-function term. Approximate plots of the fields in both the time and frequency domains are provided. It is demonstrated that “at low frequencies a TEM horn acts like an electric dipole. Finally, a number of suggestions are provided for improving the response of the TEM horn. CLEARED FORFWLICIWLEASE 3-/3f?%
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