An efficient metamaterial-inspired electrically-small antenna

This article presents an inexpensive, efficient, and electrically-small antenna design that is based on a metamaterial-inspired structure driven by an electrically-small semi-circular loop antenna, which is coaxially fed through a finite ground plane: The proposed antenna system is linearly scalable over a wide frequency spectrum. The design details and radiation characteristics of the antenna system at 300, 1580, and 6000 MHz are reported. (c) 2007 Wiley Periodicals, Inc.