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

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