Coupling between crossed-dipole feeds |
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Authors: | Andersen J Schjaer-Jacobsen H Lessow H |
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Affiliation: | Danish Eng. Acad., Aalborg, Jutland Denmark; |
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Abstract: | Various effects of coupling between crossed-dipole antennas are analyzed and by using an arbitrary feeding network some generality is preserved. With one cross excited and another cross acting as a parasitic loaded antenna, coupling losses and gain and polarization losses are presented as a function of orientation and feeding network properties. The antennas are used as feeds for a parabolic reflector, and the effect of coupling on the secondary fields is analyzed. Especially significant is the polarization loss and it may, to some extent, be reduced by a proper choice of feeding network. |
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