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 :
