DocumentCode
2862717
Title
A new GPS quadrifilar helix antenna
Author
Shumaker, P.K. ; Chien H.Ho ; Smith, K.B.
Author_Institution
Garmin Commun. & Navigation, USA
Volume
3
fYear
1996
fDate
21-26 July 1996
Firstpage
1966
Abstract
This paper discusses the design and measurement of a new printed half wavelength quadrifilar helix antenna. We use infinite microstrip baluns to feed the helical antenna. This feeding technique reduces the antenna´s physical size and provides an ease of mass production. Experiment results show that the printed volute antenna has a 3 dB beamwidth of more than 145/spl deg/ and a front-to-back ratio of more than 20 dB.
Keywords
Global Positioning System; antenna feeds; antenna testing; baluns; microstrip antennas; microstrip lines; 3 dB beamwidth; GPS quadrifilar helix antenna; antenna design; antenna feed; antenna measurement; experiment results; front-to-back ratio; infinite microstrip baluns; mass production; printed half wavelength quadrifilar helix antenna; printed volute antenna; Antenna feeds; Antenna measurements; Global Positioning System; Helical antennas; Impedance matching; Loss measurement; Microstrip antennas; Polarization; Satellites; Strips;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location
Baltimore, MD, USA
Print_ISBN
0-7803-3216-4
Type
conf
DOI
10.1109/APS.1996.549991
Filename
549991
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