Wire Realization of a Tapered Slot Antenna with Reconfigurable Elements
W. O. Coburn (1) and A. I. Zaghloul (1,2)
(1) U.S. Army Research Laboratory, Adelphi, MD, USA, (2) Virginia Polytechnic Institute and State University, VA, USA
The planar tapered slot designs are popular for broadband antennas and there have been many variations such as the linear tapered slot and the constant width slot antennas. Here we consider a generic Vivaldi exponentially tapered slot that is a single layer planar structure. Using the shape of these metallic arms, we construct a variation of this antenna using closely spaced thin wires. A single driven element fed by a two-wire transmission line is used with a reflector element to improve the pattern shape. The length of these elements can be mechanically adjusted to operate over different frequency bands resulting in a reconfigurable antenna. Adjustable length double stub tuning elements further improve the impedance matching over narrow frequency bands. This paper summarizes the modeling investigation using FEKO and presents preliminary results. These results are encouraging for further optimization of the design and prototype fabrication on thin film substrates.
27th Annual Review of Progress in Applied Computational Electromagnetics
2011
March
324-329
Due to copyright restrictions articles are not available for download. They are however indexed on this site and search results will therefore correctly indicate if such terms are present in the articles.
