MOBILE WIRELESS INFORMATION TERMINAL

摘要

PROBLEM TO BE SOLVED: To provide a mobile wireless information terminal for selecting its directivity wherein radiation in directions with low contribution to communication operations is suppressed and radiation in directions with high contribution to communication operations is strengthened by each operating state of the terminal.

SOLUTION: The mobile wireless information terminal adopts a foldable main body and is provided with: a built-in main body antenna built in a first case; a whip antenna 10 projected from the outside of the first case; a parasitic antenna element 11 built in a second case; an opening/closing detection means 4 for detecting the opening/closing state of the terminal; and an operation discrimination means 6 for discriminating the operating state of the terminal. The operating state of the terminal is discriminated by an output from the opening/closing detection means 4 and the operation discrimination means 6, and the electromagnetic coupling of the parasitic antenna element 11 is switched by each operation to switch the directivity. Thus, the mobile wireless information terminal for performing excellent communication is realized by suppressing the radiation in directions with lower contribution to the communication operations and strengthening the radiation in directions with higher contribution to the communication operations.

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