Retro-directive array using two-port dual polarized elements

In this article, linear and circular polarized retro-directive arrays with two-port dual-polarized elements are implemented. Pair of elements is arranged so that each vertical port is connected to the horizontal port and vice versa. In this way, reflection field from the ground plane and the reradiated field by way of interconnection can easily be distinguished not only for the linear polarized array but also for the circular polarized array. Simulations and experiments were conducted at 5 and 10 GHz for 2D linear and circular polarized array. respectively. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 450–453, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23113