Kim BoRam
A dipole antenna is proposed for a GPS receiving antenna. To have higher directivity and smaller back lobes for the dipole antenna, a ground reflector is used for reflecting backward radiation which causes the noise induction from the mobile devices. Moreover, for compensating the reduced real impedance of an antenna which is getting smaller as the ground reflector goes to the dipole antenna, the folded dipole antenna which has the high real impedance is used. Hence, the proposed antenna has the enhanced forward beam pattern and the reduced backward beam pattern. It has high gain of 5.15dBi for linear polarization. And it also has high front-to-back ratio. Due to the slim size of the proposed antenna, it can be used as the inner-antenna.
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