Improvement of the radiation pattern by reducing the leakage current on the ground plane for antennas of PC terminals

In order to reduce the leakage current on the ground plane and improve the radiation pattern, we have proposed an antenna structure with parasitic elements. The validity of the simulated result is shown by comparison with the measurement. The proposed antenna is satisfied with the required bandwidth of IEEE 802.11b/g. Since the leakage current on the ground plane is reduced with the proposed antenna in comparison with the inverted-F antenna, the radiation pattern of vertical polarization in the horizontal plane is improved.

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