MULTI-BAND ANTENNA
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0 Petitions
Accused Products
Abstract
The present invention relates to multi-band antenna. This antenna comprises a substrate and at least one conductive layer provided with a plurality of antennas, such as PIFAs, resonating in specific frequency bands. The antennas are cascaded in order to achieve a compact antenna. The first antenna comprises a first radiating element, a first feed element connected to said first radiating element and a first ground return element and the second antennas comprises a second radiating element, a second feed element connected to said second radiating element and a second ground return element. The ground plane is printed in the same layer as the first or second antenna.
15 Citations
34 Claims
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1-17. -17. (canceled)
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18. A multi-band antenna comprising:
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a substrate having at least one conductive layer; said at least one conductive layer comprising a ground section; a first radiating element, a first feed element connected to said first radiating element and a first ground return element connected to said first radiating element and said ground section, said first radiating element and said first feed element being offset transversally from the ground section, said first radiating element, said first feed element and said first ground return element being arranged in order to form a first antenna resonating in a first frequency band, a second radiating element, a second feed element connected to said second radiating element and a second ground return element connected to said second radiating element and said first ground return element, and said ground section, said second radiating element, said second feed element and said second ground return element are arranged in order to form a second antenna resonating in a second frequency band; the length L20 of the second radiating element being different from the length L30 of the first radiating element, said second radiating element and said second feed element being offset transversally from said first radiating element and said first feed element;
wherein the first feed element is connected to the second feed element by a link, such that the second radiating element is connected via the first feed element to a common feeding port. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification