Compact quadrifilar helix antenna |
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Authors: | Amin M Cahill R |
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Affiliation: | Inst. of Electron., Queen's Univ. Belfast, UK; |
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Abstract: | Modifications to the geometry at the centre of the helical section of a 1/2 turn half-wavelength quadrifilar antenna are shown to provide a large reduction in the axial length compared to a conventional volute. In addition this technique provides a simple method of tuning the resonant frequency of the structure. |
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