Dominating Radiation Intensity of Linear Array Antenna

摘要

A traditional mathematical steps were applied in order to eliminate the effect of diffraction in Fresnel region and side lobes of array antenna in Fraunhofer region. Steps that taken here produce a procedure of dominating for the purpose of clamping the form of radiation pattern even that the frequency of operation, dimension, number of element, and region of excitation may be varied, where today and in past tapering are used for the purpose of beam forming, but the radiation pattern must be chosen from the standard forms of pattern in far field by synthesizing mean, while this procedure of dominating is based on curve fitting tools mainly. That mean state equations of array elements are weighted and equalize to state equation of radiation pattern. Currently fitting is done by imposing a natural pattern ${e^{ - a{heta ^2}}}$ for the array antenna and dominating it around the array antenna for a one wavelength arc, where at any way dominating can be done arbitrary. Factor {a} is used to scaling Half Power Beam Width for this kind of pattern. All these things are done by using only 3-elements. The elimination is done by providing an excitation function for the limited number of array elements and tested by estimating field intensity according to antenna theory.