C. Mertzianidis et al., PATTERN SYNTHESIS WITH A FEED NETWORK CONSISTING OF LOSSY TRANSMISSION-LINE SECTIONS, IEEE transactions on broadcasting, 39(2), 1993, pp. 273-281
A method for feeding the elements of an array with lossy transmission
line sections is presented. The solution of the problem has a starting
point at the lossless case, where we have relatively simple expressio
ns. The procedure is completed by analyzing the antenna array in a fre
quency band around the central frequency. Several examples show the ap
plicability of the method.