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Coupled oscillator array generating circular polarization [active antenna]

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2 Author(s)
Dussopt, L. ; Lab. d''Electron., Univ. de Nice-Sophia Antipolis, Valbonne, France ; Laheurte, J.-M.

In this work, a four-element oscillator array using linearly polarized elements is designed to generate circular polarization. The oscillators are coupled in a loop arrangement with unidirectional coupling. The analysis of this new arrangement is developed and confirmed by circular polarization radiation pattern measurements showing a wide axial ratio beamwidth both in principal and diagonal planes

Published in:

Microwave and Guided Wave Letters, IEEE  (Volume:9 ,  Issue: 4 )