Foldable portable radio
First Claim
1. A foldable mobile radio apparatus, comprising:
- a first case;
an antenna element that is provided to the first case;
a second case;
a hinge portion that joins the first case and the second case turnably; and
a circuit board that is provided in the second case, and has a ground pattern and a feeding portion, wherein the hinge portion has a rotation shaft formed by conductive metal to join the first case and the second case turnably;
wherein the rotation shaft is spatially coupled to the antenna element at a predetermined interval;
wherein the rotation shaft is arranged to the hinge portion in a state that the rotation shaft is separated from the ground pattern on the circuit board, and is electrically connected to the feeding portion; and
wherein the antenna element, the rotation shaft, and the ground pattern on the circuit board operate as an antenna when a power is fed.
2 Assignments
0 Petitions
Accused Products
Abstract
In the foldable mobile radio apparatus constructed by coupling two cases to open and close, the high antenna performance can be secured over the wider band with the simple structure. A foldable mobile radio apparatus, includes a first case, an antenna element provided to the first case, a second case, a hinge portion for joining the first case and the second case turnably, a circuit board provided to an inside of the second case and having a ground pattern, and a feeding portion connected to a radio circuit on the circuit board. The hinge portion is formed of a nonconductive resin, and has a rotation shaft made of conductive metal to join the first case and the second case turnably. The rotation shaft is spatially coupled to the antenna element at a predetermined interval, and the rotation shaft is arranged to separate from the ground pattern on the circuit board, and is connected electrically to the feeding portion. Also, the antenna element, the rotation shaft, and the ground pattern on the circuit board operate as an antenna.
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Citations
8 Claims
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1. A foldable mobile radio apparatus, comprising:
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a first case;
an antenna element that is provided to the first case;
a second case;
a hinge portion that joins the first case and the second case turnably; and
a circuit board that is provided in the second case, and has a ground pattern and a feeding portion, wherein the hinge portion has a rotation shaft formed by conductive metal to join the first case and the second case turnably;
wherein the rotation shaft is spatially coupled to the antenna element at a predetermined interval;
wherein the rotation shaft is arranged to the hinge portion in a state that the rotation shaft is separated from the ground pattern on the circuit board, and is electrically connected to the feeding portion; and
wherein the antenna element, the rotation shaft, and the ground pattern on the circuit board operate as an antenna when a power is fed. - View Dependent Claims (3, 4, 5)
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2. A foldable mobile radio apparatus, comprising:
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a first case;
an antenna element that is provided to the first case;
a second case;
a hinge portion that joins the first case and the second case turnably; and
a circuit board that is provided in the second case, and has a ground pattern and a feeding portion, wherein the hinge portion has a rotation shaft formed by conductive metal to join the first case and the second case turnably;
wherein the rotation shaft is connected to the antenna element via an impedance element, wherein the rotation shaft is arranged to the hinge portion in a state that the rotation shaft is separated from the ground pattern on the circuit board, and is electrically connected to the feeding portion; and
wherein the antenna element, the rotation shaft, and the ground pattern on the circuit board operate as an antenna when a power is fed. - View Dependent Claims (6, 7, 8)
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Specification