Title :
Compact quadrifilar helix antenna
Author :
Amin, M. ; Cahill, R.
Author_Institution :
Inst. of Electron., Queen´´s Univ. Belfast, UK
fDate :
6/9/2005 12:00:00 AM
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.
Keywords :
helical antennas; tuning; axial length; half-wavelength quadrifilar antenna; helical section; quadrifilar helix antenna; resonant frequency tuning;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20051176
