function s = rlcpar(a,b,r,l,c)
% s = rlcpar(a,b,r,l,c)
% Parallel R L C
% a, b :  Vectors [ax ay az] and [bx by bz] of end coordinates of the element.
%         The distance between the end points should be less than 1/10 of the wavelength. 
% r,l,c:  resistance, inductivity, and capacity in  Ohm, Farad , Henry 
%         (defaults: 0, 0, 0)
% s    :  resulting antenna structure 
