An antenna includes a ground plane having a slot. The slot may be miniaturized using a meandered slot structure or other appropriate reactive loading method as an end load to one or both ends of the slot. An edge treatment may be included on one or more edges of the ground plane or a closely spaced reflecting plane. The antenna is structured to transmit or receive a signal independently or in response to electromagnetic radiation.
This invention was made under the United States Department of Energy's (DOE) National Nuclear Security Administration contract DE-AC04-94AL85000 and/or Sandia National Laboratories Grant/Contract No. DOE SNL 893 804, BANNER/UFAS No. 1-489191-933007-191100. The government has certain rights in the invention.