Antenna device
First Claim
1. An antenna device for use in a personal digital cellular communication apparatus, comprising:
- an antenna body including a conductor, an equivalent circuit of said conductor comprising an inductive component and a resistive component in a series connection, anda frequency changing circuit including at least a parallel circuit comprising a switching diode and a passive element connected to said conductor of said antenna body.
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Accused Products
Abstract
The invention provides an antenna device, comprising: an antenna body including a conductor, an equivalent circuit of said conductor comprising an inductive component and a resistive component in a series connection, wherein a frequency adjusting circuit including at least a parallel circuit of a switching element and a passive element is connected to said conductor of said antenna body. The antenna body is connected in series with said frequency adjusting circuit.
The invention enable to provide a compact antenna device for use in a mobile communication apparatus that performs transmission and reception on frequencies in a wide range.
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Citations
10 Claims
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1. An antenna device for use in a personal digital cellular communication apparatus, comprising:
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an antenna body including a conductor, an equivalent circuit of said conductor comprising an inductive component and a resistive component in a series connection, and a frequency changing circuit including at least a parallel circuit comprising a switching diode and a passive element connected to said conductor of said antenna body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification