Title :
Microwave reflection properties of a rotating corrugated metallic plate used as a reflection modulator
Author :
Peckham, Gordon E. ; Suttie, Robert A.
Author_Institution :
Dept. of Phys., Heriot-Watt Univ., Edinburgh, UK
fDate :
7/1/1988 12:00:00 AM
Abstract :
The performance of a simple microwave modulating retro-reflector based on a rotating corrugated metallic plate is analyzed theoretically and compared with laboratory measurements. Fields within the corrugations are described by waveguide modes and free-space fields by Floquet modes. The periodicity of the grooves is represented through the reciprocal lattice corresponding to the periodic structure. The accuracy of the calculation is analyzed as a function of the number of modes used to describe the electromagnetic field. Graphs are given for the design of a modulator for any wavelength
Keywords :
electromagnetic wave reflection; Floquet modes; electromagnetic field; free-space fields; groove periodicity; microwave modulating retro-reflector; microwave reflection properties; reflection modulator; retroreflector; rotating corrugated metallic plate; waveguide modes; Accuracy; Electromagnetic analysis; Electromagnetic waveguides; Laboratories; Lattices; Microwave measurements; Performance analysis; Periodic structures; Reflection; Rotation measurement;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
