this paper illustrates two methods of having a desired sectoral pattern using the
techniques of antenna synthesizing ,we will calculate the array excitation coefficients by
using Fourier transform and Woodward method , beside studying the effect of
increasing
the array elements on the desired radiation pattern and the side loop level at a constant
distance. Finally we will compare the results of the two methods showing their advantages
and disadvantages.
This paper illustrates a design of linear array antenna equal space and non uniform
excitation using Dolph – Chebyshev method , We will discuss the designing procedure
for antenna array having odd or even number of elements at two different values
of the
major to minor sidelobe level and at various between spaces , we will calculate the
excitation coefficients and plot the radiation pattern for each case in addition to calculate
both of the half power beam width angel and directivity. Finally : two curves will be
plotted : first of them for beam broadening factor as a function of the major to minor
sidelobe ratio ,the other one for directivity as a function of the array length.
