Radiation pattern control by subreflector shaping in a dual-reflector antenna

2002 ◽  
Vol 35 (5) ◽  
pp. 408-412 ◽  
Author(s):  
J. R. Bergmann ◽  
L. C. Palma Pereira
Keyword(s):  
Radiation Pattern ◽  
Reflector Antenna ◽  
Pattern Control ◽  
Dual Reflector Antenna

scholarly journals Omnidirectional Dual-Reflector Antenna with GO Shaped Main Reflector for Pattern Control in the Elevation Plane: OADC Case

2012 ◽  
Vol 2012 ◽  
pp. 1-6
Author(s):  
José R. Bergmann ◽  
Fernando J. S. Moreira
Keyword(s):  
Radiation Pattern ◽  
Method Of Moments ◽  
Vertical Plane ◽  
Accurate Method ◽  
Reflector Antenna ◽  
Far Field ◽  
Pattern Control ◽  
Field Radiation ◽  
Main Reflector ◽  
Dual Reflector Antenna

This paper presents a formulation for shaping the main reflector of an axis-symmetric dual-reflector antenna designed to offer an omnidirectional coverage with an arbitrary radiation pattern in the vertical plane. The subreflector is generated by an axis-displaced conic, and the main reflector is shaped to achieve a prescribed far-field radiation pattern. The procedure is based on geometrical optics (GO) principles. Two distinct far-field ray structures are explored and their limitations are identified. The GO shaping results are validated by analysis provided by the accurate method of moments technique.

Offset spherical dual-reflector antenna

1983 ◽  
Vol 19 (22) ◽  
pp. 912 ◽  
Author(s):  
R.C. Brown ◽  
P.J.B. Clarricoats ◽  
P. Ramanujam
Keyword(s):  
Reflector Antenna ◽  
Dual Reflector Antenna
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