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US 8,508,415 B2Granted
Antenna and electric device having the same
AssigneeHitachi Cable, Ltd.
InventorsMorihiko Ikegaya, Haruyuki Watanabe, Naoki Iso, Tomoyuki Ogawa
Life of this patent
Estimating the term…
Abstract
An antenna for transmitting and receiving an electric wave in plural frequency bands has a conductor, two slots formed in the conductor to be facing to each other, opened ends of the two slots being formed on opposite sides, respectively, and a feeding point formed only in either one of the two slots.
Claims17
An antenna for transmitting and receiving an electric wave in two different frequency bands, said antenna comprising:
- a conductor;
- a first slot and a second slot formed in the conductor to be facing to each other, an opened end of the first slot and an opened end of the second slot being formed on opposite sides of the conductor, respectively;
- a boundary conductor provided between the first and second slots;
- and
- a feeding point,
- wherein a length of the second slot from the boundary conductor to the opened end of the second slot is shorter than a length of the first slot from the boundary conductor to the opened end of the first slot,
- wherein the feeding point is located only at the second slot, and
- wherein the length of the first slot is set based on a first wavelength of the electric wave in one of the frequency bands, and the length of the second slot is set based on a second wavelength of the electric wave in another one of the frequency bands.
5 more elements
An electric device, comprising:
- a casing;
- and
- an antenna for transmitting and receiving an electric wave in two different frequency bands, formed in the casing,
- the antenna comprising:
- a conductor;
- a first slot and a second slot formed in the conductor to be facing to each other, an opened end of the first slot and an opened end of the second slot being formed on opposite sides of the conductor, respectively;
- a boundary conductor provided between the first and second slots;
- and
- a feeding point,
- wherein a length of the second slot from the boundary conductor to the opened end of the second slot is shorter than a length of the first slot from the boundary conductor to the opened end of the first slot,
- wherein the feeding point is located only at the second slot, and
- wherein the length of the first slot is set based on a first wavelength of the electric wave in one of the frequency bands, and the length of the second slot is set based on a second wavelength of the electric wave in another one of the frequency bands.
9 more elements
Dependencies are inferred from the claim text.