Sk. Khamas et Gg. Cook, MOMENT-METHOD ANALYSIS OF PRINTED WIRE SPIRALS USING CURVED PIECEWISESINUSOIDAL SUBDOMAIN BASIS AND TESTING FUNCTIONS, IEEE transactions on antennas and propagation, 45(6), 1997, pp. 1016-1022
Archimedian and logarithmic printed wire spirals are analyzed using a
moment method incorporating curved piecewise sinusoidal subdomain basi
s and testing functions. Results for spiral parameters including input
impedance and current distribution are presented and are shown to hav
e good agreement with published results for the same antennas obtained
using linear segmentation. Since the curved basis functions exactly f
ollow the spiral contour, significantly fewer curved segments are, the
refore, required for accurate analysis compared with linear segmentati
on.