Compact PIFA antenna
First Claim
1. A planar inverted-F antenna (PIFA) comprising:
- a printed circuit board (PCB) comprising a top surface and a bottom surface;
an antenna element disposed on the top surface, wherein the antenna element comprises a plurality of slots; and
a ground element disposed on the bottom surface and coupled to the antenna element through at least one via that extends through a hole in the ground element, wherein;
the ground element comprises a perimeter defining an area, at least a portion of which comprises an electrically conducting layer defining an additional slot therein, andthe additional slot is distinct and separate from the hole.
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Accused Products
Abstract
Various planar inverted-F antenna configurations may include an antenna element formed on the top of a PCB and a ground element formed on the bottom of the PCB. Two or more slots may be included in the antenna element for reducing the antenna area while maintaining a suitable impedance bandwidth. A slot may be included in the ground element for reducing the ground area while increasing radiation efficiency. A folded ground may be formed on the top of the PCB for reducing system area while maintaining suitable performance. By moving the folded ground closer to the antenna element and increasing the PCB thickness, significant reductions in system area may be achieved, while maintaining or improving performance in terms of radiation pattern, radiation efficiency and impedance bandwidth.
1022 Citations
20 Claims
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1. A planar inverted-F antenna (PIFA) comprising:
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a printed circuit board (PCB) comprising a top surface and a bottom surface; an antenna element disposed on the top surface, wherein the antenna element comprises a plurality of slots; and a ground element disposed on the bottom surface and coupled to the antenna element through at least one via that extends through a hole in the ground element, wherein; the ground element comprises a perimeter defining an area, at least a portion of which comprises an electrically conducting layer defining an additional slot therein, and the additional slot is distinct and separate from the hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification