Dg. Hundt et Wl. Stutzman, PATTERN MEASUREMENT DISTANCE FOR BROAD-BEAM ANTENNAS, Journal of electromagnetic waves and applications, 8(2), 1994, pp. 221-235
Measurement distance requirements for electrically large, broad beam a
ntennas are investigated in this paper. Design guidelines are develope
d for determining far-field measurement distances for various pattern
types. Results show that while the popular 2D2/lambda measurement dist
ance usually ensures accurate measurements of broad beam antenna patte
rns, measurement distances less than 2D2/lambda can provide acceptable
results.