DocumentCode
1465752
Title
Focusing Properties of Fresnel Zone Plate Lens Antennas in the Near-Field Region
Author
Karimkashi, Shaya ; Kishk, Ahmed A.
Author_Institution
Dept. of Electr. Eng., Univ. of Mississippi, Oxford, MS, USA
Volume
59
Issue
5
fYear
2011
fDate
5/1/2011 12:00:00 AM
Firstpage
1481
Lastpage
1487
Abstract
Some focusing properties of Fresnel zone plate (FZP) lens antennas in the near-field region are presented at the ka-band. Simulated and measured results of the FZP antenna show displacement of the maximum intensity of the electric field along the axial direction from the focal point toward the antenna aperture. This displacement increases as the antenna´s focal length increases. In addition, the focused beam scanning of the FZP lens antennas in the radiation near-field is examined.
Keywords
antenna radiation patterns; aperture antennas; lens antennas; optical focusing; zone plates; FZP lens antenna; Fresnel zone plate lens antenna; antenna aperture; antenna focal length; electric field; focal point; focused beam scanning; focusing property; ka-band; maximum intensity displacement; near-field region; radiation near-field; Antenna measurements; Aperture antennas; Electric fields; Electric variables measurement; Lenses; Focusing; Fresnel zone plate lenses; near fields;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.2011.2123069
Filename
5724283
Link To Document