The near fields of long end-fire dipole arrays
- 1 September 1962
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 10 (5) , 511-523
- https://doi.org/10.1109/TAP.1962.1137911
Abstract
Measured phase and amplitude data on a variety of long (40-wavelength) end-fire arrays of dipoles are presented. Correlation with far-field radiation patterns was good, and experimental agreement with a parallel theoretical program was very satisfactory. Measured local phase velocity agreed well with calculated values, and uniform, tapered, and periodically-modulated arrays with the proper average phase shift all had approximately the theoretical expected gain. It is shown that local variations in the near field caused by the individual elements may distort measurements of the phase velocity based upon standing-wave techniques.Keywords
This publication has 1 reference indexed in Scilit:
- A new method for obtaining maximum gain from yagi antennasIEEE Transactions on Antennas and Propagation, 1959