DocumentCode :
1392350
Title :
Investigations on the Efficiency of Array Fed Coherently Radiating Periodic Structure Beam Forming Networks
Author :
Ferrando, Nicolas ; Fonseca, Nelson J G
Author_Institution :
Antenna Dept., French Space Agency (CNES), Toulouse, France
Volume :
59
Issue :
2
fYear :
2011
Firstpage :
493
Lastpage :
502
Abstract :
The concept of coherently radiating periodic structure beam forming network (C-BFN) has been introduced recently in the literature as a possible mean to feed linear or planar arrays. Losses are expected in such a structure as it produces non-orthogonal excitation laws, motivating the investigations on C-BFN efficiency presented in this paper to guide antenna designers. Mono- and multi-beam applications are considered, including also beam steering capability. These investigations help define some useful design rules depending on the application. Some evolutions are also proposed that may overcome some limitations of the original concept. All the presented results are supported by both simulations and measurements of various prototypes designed on printed technology at 6 GHz.
Keywords :
antenna feeds; antenna radiation patterns; beam steering; linear antenna arrays; planar antenna arrays; beam steering capability; coherently radiating periodic structure beam forming networks; feed linear arrays; frequency 6 GHz; monobeam applications; multibeam applications; non-orthogonal excitation laws; planar arrays; Beam forming network; beam steering; coherently radiating periodic structure beam forming network (CORPS-BFN or C-BFN); linear and planar arrays;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2010.2096392
Filename :
5654546
Link To Document :
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