DocumentCode
1040768
Title
Partially reflecting sheet arrays
Author
Trentini, Giswalt Von
Author_Institution
Starnberg, Oberbayern, Luitpoldweg, Germany
Volume
4
Issue
4
fYear
1956
fDate
10/1/1956 12:00:00 AM
Firstpage
666
Lastpage
671
Abstract
Multiple reflections of electromagnetic waves between two planes are studied, and the increase in directivity that results by placing a partially reflecting sheet in front of an antenna with a reflecting screen is investigated at a wavelength of 3.2 cm. The construction and performance of various models of such arrays is discussed. Thus, for example, a "reflex-cavity antenna" with an outer diameter of 
and an over-all length of only 
is described which has half-power beamwidths of 
and 
in the 
and 
planes, respectively, and a gain of approximately 14 db. It is shown that larger systems produce considerably greater directivity but that their efficiency is poor.
and an over-all length of only is described which has half-power beamwidths of and in the and planes, respectively, and a gain of approximately 14 db. It is shown that larger systems produce considerably greater directivity but that their efficiency is poor.Keywords
Apertures; Electromagnetic reflection; Waveguide antennas; Antenna arrays; Antenna measurements; Directive antennas; Electromagnetic reflection; Electromagnetic scattering; Lighting; Optical reflection; Phased arrays; Reflector antennas; System testing;
fLanguage
English
Journal_Title
Antennas and Propagation, IRE Transactions on
Publisher
ieee
ISSN
0096-1973
Type
jour
DOI
10.1109/TAP.1956.1144455
Filename
1144455
Link To Document