论文信息 - Printed Square Quadrifilar Helix Antenna (QHA) for GPS Receiver

Printed Square Quadrifilar Helix Antenna (QHA) for GPS Receiver

A new printed square quadrifilar helix antenna (QHA) for circular polarization (CP) is proposed and experimentally investigated for the application as a GPS receiving antenna in frequency range of about 1.575 GHz. To increase the input impedance of QHA, we use the folded inverted-F antenna as a helix. Experiment results show that the proposed antenna has a 3-dB beamwidth of more than 120deg and a front-to-back ratio of more than 15 dB. Also, the proposed antenna shows the peak gain of -2.5 dBic and the axial ratio under 0.5 dB in wanted frequency band.

Moon-Que Lee | Jong-Won Yu | Won-Gyu Lim | Wang-Ik Son | Sang-Bo Min

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