Title :
Printed half-wavelength quadrifilar helix antenna for GPS marine applications
Author :
Shumaker, P.K. ; Ho, C.H. ; Smith, K.B.
Author_Institution :
Garmin Commun. & Navigation, Lenexa, KS, USA
fDate :
2/1/1996 12:00:00 AM
Abstract :
The authors present a new printed half-wavelength quadrifilar helix antenna using infinite microstrip feeding baluns. This new volute antenna allows low cost, ease of mass production, and substantially improved elevation pattern coverage and circular polarisation properties. Experimental results show that the printed volute antenna has a 3dB beamwidth of >145° and a front-back ratio of >20dB
Keywords :
Global Positioning System; antenna feeds; antenna radiation patterns; baluns; electromagnetic wave polarisation; helical antennas; marine systems; microstrip antennas; mobile antennas; satellite antennas; GPS marine applications; circular polarisation properties; elevation pattern coverage; half-wavelength antenna; infinite microstrip feeding baluns; printed volute antenna; quadrifilar helix antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960129
