Title :
Uncertainty of Free-Space Dipole Antenna Factor From 1 GHz to 2 GHz
Author :
Morioka, Takehiro
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba
fDate :
4/1/2009 12:00:00 AM
Abstract :
The free-space antenna factor (AF) of a dipole antenna above 1 GHz using the three-antenna method (TAM) and associated uncertainty is presented. Theoretical site insertion loss containing antenna alignment and terminal impedances is newly given for the TAM and the uncertainty analysis. Higher order terms of Taylor series expansion are considered to include the effect of the alignment angle on uncertainty. Finally, the AFs are obtained with an expanded uncertainty of 0.4 dB (k = 2) in the entire frequency range.
Keywords :
dipole antennas; measurement uncertainty; Taylor series expansion; antenna alignment; antenna factor; associated uncertainty; free-space dipole antenna; frequency 1 GHz to 2 GHz; site insertion loss; terminal impedances; three-antenna method; Anechoic chambers (electromagnetic); antenna measurements; dipole antennas; electric field measurement; uncertainty;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
Conference_Location :
12/9/2008 12:00:00 AM
DOI :
10.1109/TIM.2008.2008460
