Importance

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Abstract

A portable wireless unit capable of ensuring high speed, large capacity communication by lowering the correlation coefficient between antennas under various use states of a user. An antenna element (1) is arranged outside from the upper end of a case (4) on the side opposite to the display section (23) of the case, an antenna element (2) is arranged in parallel with and on the same side of the antenna element (1) while spaced apart in the width direction, and an antenna element (3) is arranged in parallel with the antenna element (1) from the display section (23) side spaced apart from the antenna element (1) in the thickness direction. The antenna element (1) is connected with a transmitter/receiver (14), and any one of the antenna element (2) or (3) is selected by controlling a high frequency switch (11) by angle information from a gravity sensor (22) and connected with the transmitter/receiver (14). A receiving signal is amplified by receiving circuits (18, 19) through the transmitter/receiver (14, 15) and then separated at a demodulating section (20) thus extracting reception information.

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First Claim