Evaluation of directivity and gain for time‐modulated linear antenna arrays

Abstract

Abstract 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. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 167–171, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20241