Multiband Antenna
AssigneeAcer Incorporated
InventorsKin-Lu Wong, Cheng-Tse Lee
Life of this patent
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Abstract
A multiband antenna comprises a ground plane, a substrate, and a radiating metal element, wherein a side of the substrate is substantially adjacent to a side of the ground plane; the radiating metal element is on a surface of the substrate. The radiating metal element comprises a radiating portion having a slit, a shorting portion having a first end electrically connected to the radiating portion and a second end electrically connected to the ground plane, and a feeding portion; the feeding portion comprises an antenna feeding point for electrically connecting to a signal source, wherein a first spacing is formed between the feeding portion and the radiating portion, and a second spacing is formed between the feeding portion and the shorting portion.
Claims18
A multiband antenna comprising:
- a ground plane;
- a substrate, the substrate having a side adjacent to a side of the ground plane;
- and
- a radiating metal element disposed on a surface of the substrate, the radiating metal element comprising:
- a radiating portion having a slit for exciting a rejected frequency band to generate an operating frequency band for the multiband antenna;
- a shorting portion having a first end electrically connected to the radiating portion and a second end electrically connected to the ground plane, wherein the sum of the lengths of the shorting portion and the radiating portion is less than a quarter wavelength of a center frequency of the lowest operating frequency band of the multiband antenna;
- and
- a feeding portion surrounded by the radiating portion, the shorting portion and the ground plane, wherein the feeding portion comprises an antenna feeding point for electrically connecting to a signal source;
- a first spacing is formed between the feeding portion and the radiating portion, and a second spacing is formed between the feeding portion and the shorting portion.
A multiband antenna comprising:
- a ground plane;
- a substrate, the substrate having a side adjacent to a side of the ground plane;
- and
- a radiating metal element disposed on a surface of the substrate, the radiating metal element comprising:
- an antenna ground plane electrically connected to the ground plane;
- a radiating portion having a slit for exciting a rejected frequency band to generate an operating frequency band for the multiband antenna;
- a shorting portion having a first end electrically connected to the radiating portion and a second end electrically connected to the antenna ground plane, wherein the sum of the lengths of the shorting portion and the radiating portion is less than a quarter wavelength of a center frequency of the lowest operating frequency band of the multiband antenna;
- and
- a feeding portion surrounded by the radiating portion, the shorting portion and the antenna ground plane, wherein the feeding portion comprises an antenna feeding point for electrically connecting to a signal source;
- a first spacing is formed between the feeding portion and the radiating portion, and a second spacing is formed between the feeding portion and the shorting portion.
Dependencies are inferred from the claim text.