Feed Systems for array-fed reflector scansar antennas

Author

Mizzoni, R. ; Orlando, G. ; Ravanelli, R. ; Valle, P.

Author_Institution

Thales Alenia Space Italia S.p.A, Rome

fYear

2009

fDate

23-27 March 2009

Firstpage

3060

Lastpage

3064

Abstract

Dual linearly polarized feed systems illuminating a highly elliptical reflector antenna for scansar instruments are discussed. Linear arrays with elements sharing through reconfigurable beamforming networks (RBFN´s) and/or stacked multimode sectorial horns operated on a single feed per beam basis are examined and compared. The initial design of the preferred solution, based on stacked multimode smoothed wall rectangular feeds is further presented.

Keywords

array signal processing; beam steering; electromagnetic wave polarisation; horn antennas; linear antenna arrays; multifrequency antennas; radar antennas; reflector antenna feeds; synthetic aperture radar; array-fed elliptical reflector antenna; dual linearly polarized feed system; linear array; reconfigurable beamforming network; scanSAR instrument; smoothed wall rectangular feed; stacked multimode sectorial horn antenna; Antenna arrays; Antenna feeds; Array signal processing; Azimuth; Instruments; Lighting; Linear antenna arrays; Phased arrays; Polarization; Reflector antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on

Conference_Location

Berlin

Print_ISBN

978-1-4244-4753-4

Electronic_ISBN

978-3-00-024573-2

Type

conf

Filename

5068250