EVALUATION OF DIRECTIVITY AND GAIN FOR TIME-MODULATED LINEAR ANTENNA ARRAYS

摘要

In this paper, the directivity and gain of several types of time-modulated linear antenna arrays are obtained. Three types of array elements are considered: arrays with isotropic elements, parallel short dipoles, and collinear short dipoles. Curves of directivity as functions of inter-element spacing and sidelobe levels (SLLs) are presented. A comparison between the computed and measured gains of a time-modulated printed dipole linear array shows reasonable agreement.