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Multiband Pyramidal Antenna Loaded With a Cutoff Open-Ended Waveguide

Abstract : An original and flexible pyramidal antenna for satellite or terrestrial application services is presented. The ground plane of the antenna is perforated and loaded with a cutoff open-ended waveguide: this original configuration leads to a good tradeoff between rear radiation and impedance matching. Trap-loads are used to achieve multiband operation while frequency agility may be simply obtained by loading the radiating element by radio-frequency switches. The antenna radiates linearly or circularly polarized electromagnetic fields with quasi-hemispheric radiation patterns at multiple operating frequencies. Several prototypes have been simulated, manufactured, and finally measured. A specific application is given in this paper for a triband GPS/Galileo/MicroSat Telemetry antenna to combine positioning and telemetry applications. The experimental results confirm the good performances observed with the electromagnetic simulations.
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Contributor : Sami Hebib <>
Submitted on : Tuesday, November 17, 2009 - 4:49:20 PM
Last modification on : Thursday, June 10, 2021 - 3:01:38 AM
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Sami Hebib, Hervé Aubert, Olivier Pascal, Nelson Fonseca, Lionel Ries, et al.. Multiband Pyramidal Antenna Loaded With a Cutoff Open-Ended Waveguide. IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2009, 57 (1), pp. 266 - 270. ⟨10.1109/TAP.2008.2009778⟩. ⟨hal-00432957⟩



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