Title :
Finite-range gain prediction of pyramidal horn with improved accuracy
Author :
Rao, Patnam Hanumantha ; Selvan, Krishnasamy T. ; Das, Sisir K.
Author_Institution :
SAMEER-Center for Electromagnet., Madra, India
fDate :
11/1/1997 12:00:00 AM
Abstract :
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
Keywords :
amplification; antenna theory; horn antennas; integration; EMC testing; accuracy; antenna calibration measurements; aperture field; finite-range gain prediction; frequency range; gain reduction factors; gain standard; integration; measured data; pyramidal horn; Anechoic chambers; Antenna measurements; Apertures; Capacitance; Electromagnetic compatibility; Electromagnetic measurements; Engine cylinders; Extraterrestrial measurements; Frequency measurement; Gain measurement;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
