Title :
Antenna pattern measurement using a near-field wire scattering technique
Author :
Calazans, E.T. ; Griffiths, H.D. ; Cullen, A.L. ; Benjamin, R. ; Davies, D.E.N.
Author_Institution :
Univ. Coll., London, UK
Abstract :
The evaluation of antenna radiation patterns from near-field measurement consists of measuring the fields radiated by the antenna under test over a prescribed surface, within the near-field region, and subsequently processing the measured data in order to compute the desired patterns. The authors present a measurement technique which consists of moving a very long and thin wire past the antenna under test, while the variations of the reflection coefficient are recorded. Subsequent processing of these data yields one cut of the tri-dimensional radiation pattern. They discuss the underlying concepts upon which the technique is based and simplify assumptions that have been made. Some simulations and measured results are presented and discussed
Keywords :
antenna radiation patterns; electromagnetic wave scattering; antenna radiation patterns; near-field wire scattering technique; reflection coefficient;
Conference_Titel :
Antennas and Propagation, 1989. ICAP 89., Sixth International Conference on (Conf. Publ. No.301)