Title :
Easily designed and constructed high impedance surfaces
Author :
Whites, K.W. ; Glover, B. ; Amert, T.
Author_Institution :
Dept. of Electr. & Comput. Eng., South Dakota Sch. of Mines & Technol., Rapid City, SD, USA
Abstract :
In this paper, we propose a type of new high impedance surface that is extremely easy to design and fabricate. These new surfaces are formed by properly lumped loading a periodic screen on a metallic-backed substrate. This can result in an extremely effective high impedance surface. In particular, we have shown here that capacitive lumped-element loading of a periodic inductive screen is an easily designed and effective surface that would be inexpensive to fabricate. For practical unit cell sizes on the order of a few millimeters, capacitors on the order of a few picofarads are all that is needed to operate this high impedance surface in the commercial wireless communications bands (0.9-6 GHz). Such capacitors are cheap, readily available and will operate nearly to 10 GHz.
Keywords :
capacitors; frequency selective surfaces; periodic structures; shielding; surface impedance; 0.9 to 6 GHz; 10 GHz; capacitive lumped-element loading; capacitors; commercial wireless communications bands; high impedance surfaces; metallic-backed substrate screen; periodic inductive screen; periodic screen lumped loading; Boundary conditions; Capacitance; Cities and towns; Conducting materials; Corrugated surfaces; Lighting; Magnetic materials; Surface impedance; Surface waves; Transmission lines;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219262
