Title :
Off-axis gain and field in the finite range of an open-ended rectangular waveguide
Author :
Selvan, Krishnasamy T. ; Poddar, Dipak R. ; Kini, Kundapur R.
Author_Institution :
Centre for Electromagn., SAMEER, Madras, India
fDate :
11/1/2001 12:00:00 AM
Abstract :
Expressions are presented for the approximate evaluation of the off-axis gain and field in the finite-range of an open-ended rectangular waveguide (OEG). These formulas in turn present a method for predicting the off-axis error when an OEG is used as the source antenna. For an OEG operating at 250 MHz, the off-axis error estimated by using this method favorably compares with that experimentally estimated for the 1 m off-axis position
Keywords :
VHF antennas; antenna theory; error analysis; rectangular waveguides; waveguide antennas; waveguide theory; 250 MHz; OEG; off-axis error; off-axis gain; open-ended rectangular waveguide; source antenna; Anechoic chambers; Antenna measurements; Electromagnetic interference; Electromagnetic waveguides; Horn antennas; Impedance; Probes; Receiving antennas; Rectangular waveguides; Transmitting antennas;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
