Radio equipment
First Claim
1. Radio equipment comprising:
- an antenna for radiating radio waves; and
a ground part configured as an antenna armature so as to be equivalent to the antenna.
1 Assignment
0 Petitions
Accused Products
Abstract
An antenna is provided as a substrate member, and, as with the antenna, a ground part is provided as a substrate member. The ground part includes a folded pattern formed of a copper foil provided on the surface of a substrate material. When a folded pattern in the antenna and the folded pattern in the ground part are configured in a length of λ/4, a pseudo-antenna having a length of λ/2 can be formed. In this case, the antenna gain is about 2 dB, that is, the radiation of the radio wave can be improved. At the same time, the antinoise properties and the arrival distance of the radio wave can be improved. That is, the above construction can realize radio equipment which can stably radiate radio waves even under ungroundable conditions and, at the same time, can realize good characteristics even under low transmission output conditions.
8 Citations
15 Claims
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1. Radio equipment comprising:
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an antenna for radiating radio waves; and
a ground part configured as an antenna armature so as to be equivalent to the antenna. - View Dependent Claims (2, 3)
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4. Radio equipment comprising:
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an antenna for radiating radio waves; and
a ground part configured in the same form as the antenna. - View Dependent Claims (5, 6)
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7. Radio equipment comprising:
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an antenna for radiating radio waves;
a sensor for measuring a physical quantity and converting the physical quantity to an electric signal which is then output;
a transmission circuit for sending the electric signal as the radio wave;
a casing for housing therein the transmission circuit and the sensor; and
a ground part configured as an antenna armature so as to be equivalent to the antenna. - View Dependent Claims (8, 9)
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10. Radio equipment comprising:
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an antenna for radiating radio waves;
a sensor for measuring a physical quantity and converting the physical quantity to an electric signal which is then output;
a transmission circuit for sending the electric signal as the radio wave;
a casing for housing therein the transmission circuit, said sensor being provided separately from and outside the casing, said sensor and said transmission circuit being connected to a common ground; and
a ground part configured as an antenna armature so as to be equivalent to the antenna. - View Dependent Claims (11, 12)
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13. Radio equipment comprising:
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an antenna for radiating radio waves;
a ground part configured as an antenna armature so as to be equivalent to the antenna; and
a balanced matching part provided between the transmission circuit and the ground part for electrically realizing matching therebetween. - View Dependent Claims (14, 15)
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Specification