Title :
A modification of the two-antenna method to determine the phase center location as well as the gain of a wideband antenna
Author :
Herbert Aumann;Tyler Schmitt;David Mooradd
Author_Institution :
Department of Electrical and Computer Engineering, University of Maine, Orono, ME 04420, USA
fDate :
7/1/2015 12:00:00 AM
Abstract :
A technique is presented for determining the amplitude center or phase center location of a wideband Vivaldi antenna at measurement distances of a few wavelengths. It is based on the well known two-antenna gain measurement technique but makes the antenna separation a variable. The phase center separation is shown to be proportional to the derivative of a transmission matrix loss parameter which is constant and independent of the antenna separation. A linear least squares fit to transmission loss parameters measured at several antenna separations is shown to yield the antenna gain and phase center location.
Keywords :
"Antenna measurements","Vivaldi antennas","Gain measurement","Phase measurement","Wideband","Transmitting antennas"
Conference_Titel :
Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015 IEEE International Symposium on
DOI :
10.1109/APS.2015.7304814