PDA antenna system
A PDA antenna system which is provided with a first antenna used for a first case for application, a second antenna used for a second case for application, a control section which discriminates the first and second cases for application each other and outputs a discriminated signal, and an antenna s...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A PDA antenna system which is provided with a first antenna used for a first case for application, a second antenna used for a second case for application, a control section which discriminates the first and second cases for application each other and outputs a discriminated signal, and an antenna selecting device which selects either the first or second antenna as an antenna for application based on the discriminated signal of the control section and connects the seleccted antenna to a radio circuit so that the optimum antenna can be selected for each case for application. Therefore, the case for application can be discriminated easily and, at the same time, an excellent stable antenna characteristic can be secured easily. |
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