Design of dielectrically-loaded printed quadrifilar helical antenna for GPS applications

A quadrifilar antenna for GPS applications is designed by HFSS. This quadrifilar antenna has four helical arms wound around a dielectric cylinder which has high permittivity and low loss. The four arms are fed with equal amplitudes with 0deg, 90deg, 180deg, 270deg phase by integrated feeding network...

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Bibliographic Details
Main Authors: Du Xiao-yang, Dong Shu-rong, Wang de-miao
Format: Conference Proceeding
Language:English
Subjects:
Antenna radiation patterns
Arm
Ceramics
dielectric ceramic
Dielectric losses
Global Positioning System
GPS
helical antenna
Helical antennas
Impedance
Permittivity
phase control
Resonant frequency
Wounds
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Description
Summary:A quadrifilar antenna for GPS applications is designed by HFSS. This quadrifilar antenna has four helical arms wound around a dielectric cylinder which has high permittivity and low loss. The four arms are fed with equal amplitudes with 0deg, 90deg, 180deg, 270deg phase by integrated feeding network. Through precisely control of phase and design of high permittivity ceramic, quadrifilar antenna obtains proper resonant frequency and good radiation pattern. The effects including resonant frequency, axial ratio, radial pattern, impedance, gain, efficiency are simulated.
ISSN:2162-2027
DOI:10.1109/ICIMW.2006.368256