2005/04/18 by Stanislav I. Maslovski, Stanislav Maslovski, Pekka Ikonen +11
Engineering · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Antenna Design and Analysis #Antenna Design and Optimization #physics.class-ph #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.physics/0504123
10 pages, 12 figures, 3 tables
arxiv created 2005/04/18 · arxiv updated 2009/12/01
An antenna prototype utilizing artificial impedance surfaces to control the near field distribution is described. The antenna is a folded dipole placed above a finite-size artificial impedance surface. We have found that the field screening is most effective if the surface is a metal conductor. However, to achieve a reasonable value of the radiation resistance the dipole should be located far off the screen. If the surface is a magnetic wall, the antenna design is more compact, but the field behind the screen is large. Here we realize a compromise solution using an inductive surface of a moderate surface impedance, which allows realization of an effective near-field screen with still a reasonably low-profile design.