Journal ArticleDOI
Low sidelobe reflector antennas
H. Schrank
- Vol. 27, Iss: 2, pp 5-16
TLDR
In this paper, a front feed reflector antenna with a dish reflector has a reflector focal length to reflector diameter ratio of less than 0.25, and a wave guide is coupled to a proximal end of the antenna, projecting into the reflector along a longitudinal axis.Abstract:
A front feed reflector antenna with a dish reflector has a reflector focal length to reflector diameter ratio of less than 0.25. A wave guide is coupled to a proximal end of the dish reflector, projecting into the dish reflector along a longitudinal axis. A dielectric block is coupled to a distal end of the waveguide and a sub-reflector is coupled to a distal end of the dielectric block. A shield is coupled to the periphery of the dish reflector. The sub-reflector diameter is dimensioned to be 2.5 wavelengths or more of a desired operating frequency.read more
Citations
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Patent
Reflector antennas for microwaves
TL;DR: In this article, the authors proposed a dual-reflector antenna with an annulus of absorber material on the surface of the subreflector for reducing the return loss of the antenna.
Proceedings ArticleDOI
Recent advances in microwave reflector antenna technology
S. M. Ali,Mohd Azman Zakariya,Zuhairi Baharudin,M. H. Md Khir,Affan A. Baba,J. J. Adz,Mohd Fadzil Ain,Mohamadariff Othman +7 more
TL;DR: The main focus of this research is on novel reflector antenna designs to overcome the challenges caused by the rising communication systems.
Proceedings ArticleDOI
Benefits of reflector antennas with extremely low sidelobes for mobile backhaul applications
TL;DR: In this article, the importance of antennas in today's and tomorrow backhaul cannot be ignored, and two case studies are presented, clearly demonstrating how mobile operators can increase available capacity, increase their revenue, and reduce TCO and improve the quality of their transmission networks through the use of Sentinel's innovative reflector antenna technology.
Proceedings ArticleDOI
Analyzing of the feed line and the shroud effects on a reflector antenna performance
TL;DR: This paper proposes two analysis for increasing the performance of a prime fed reflector antenna, the first analysis is choosing the true feedline mechanism and the second one is the effect of shroud usage.
References
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Journal ArticleDOI
Antenna tolerance theory—A review
TL;DR: The theoretical basis of antenna tolerance theory is reviewed in this paper, where the axial loss of gain and pattern degradation as a function of the reflector surface rms error and the surface spatial correlation are discussed.
Journal ArticleDOI
Offset-parabolic-reflector antennas: A review
A.W. Rudge,N.A. Adatia +1 more
TL;DR: In this paper, the state of the art of the offset-parabolic reflector antenna's performance and design is discussed. But the authors do not discuss the performance of the single-and double-reflector antennas.
Journal ArticleDOI
Microwave antennas derived from the cassegrain telescope
TL;DR: In this paper, the fundamental performance of a Cassegrain double-reflector system was analyzed by means of the equivalent-parabola single reflector concept, and a set of polarization-operative surfaces was developed for these twisting antennas.