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- W1502527472 abstract "A novel reconfigurable and circularly polarized antenna topology for satellite application services, based on a pyramidal geometry, is proposed. Frequency agility is simply obtained by loading the radiating elements by Radio-Frequency switches. The ground plane of the antenna is perforated and loaded by a cut-off and open-ended waveguide. The length of this waveguide is adjusted to achieve a good trade-off between rear radiation and impedance matching. A specific application of this original topology is described in this paper. It consists in the design of a reconfigurable dual-band antenna for Aeronautical Radio Navigation Services (ARNS) and Radio Navigation Satellite Services (RNSS). The computed input return loss is lower than −10 dB in all the considered frequency bands and quasi-hemispheric radiation patterns are obtained. These results are in good agreement with the required Radio Navigation specifications." @default.
- W1502527472 created "2016-06-24" @default.
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- W1502527472 date "2009-03-23" @default.
- W1502527472 modified "2023-09-26" @default.
- W1502527472 title "Reconfigurable pyramidal antenna loaded by a cut-off waveguide-application to ARNS/RNSS services" @default.
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