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Leaky Wave Enhanced Feeds for Multibeam Reflectors to be Used for Telecom Satellite Based Links

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4 Author(s)
Neto, A. ; Telecom Dept., Tech. Univ. (TU) Delft, Delft, Netherlands ; Ettorre, M. ; Gerini, G. ; de Maagt, P.

The use of dielectric super-layers for shaping the radiation pattern of focal plane feeds of a multibeam reflector system is discussed. Using the super-layers, it is possible to reduce the spillover from the reflectors without increasing the dimension of each aperture. The effect has been demonstrated using a realistic array configuration. The experimental demonstration is obtained with configurations which are typical for satellite based multi beam telecommunication links. Thanks to the adoption of a × 4 reuse scheme, based on frequency and polarization orthogonal channels, the measured edge of coverage directivity has improved, with respect to a standard technology case, by 2 dB over an operational bandwidth of about 2%.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:60 ,  Issue: 1 )

Date of Publication:

Jan. 2012

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