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Finite-range gain prediction of pyramidal horn with improved accuracy

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3 Author(s)
Rao, P.H. ; SAMEER-Center for Electromagnet., Madra, India ; Selvan, K.T. ; Das, S.K.

Expressions are presented for estimating the finite-range gain of pyramidal horns with improved accuracy. These are obtained by avoiding the conventional path length approximation in estimating the gain reduction factors, by a direct integration of the aperture field in the frequency range from 18 to 26.5 GHz, these expressions compare with available measured data on a pyramidal horn with an accuracy of better than ±0.15 dB, which is an improvement of about the same order over the earlier formulas

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Electromagnetic Compatibility, IEEE Transactions on  (Volume:39 ,  Issue: 4 )