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The compact antennas with balanced effect have been introduced with the change of their configuration. These antennas are effective to mitigate the antenna performance degradation due to the human body effect and also have flexible adjustment of antenna impedance and capacity of wideband and multi-resonance characteristics. Second, a downsizing technique of antenna for handset by utilizing a magnetic material has been investigated. Suitable configuration and arrangement of magnetic materials were found by the experiment and simulation. In a result, it was found that approximately 40% miniaturization of PIFA is possible at 900MHz and 2GHz band.
Date of Conference: 4-6 March 2008