Broadband planar inverted F antenna
First Claim
1. An antenna, comprising:
- a ground plane having a first planar surface and a first area;
a radiating element having a second planar surface and a second area, wherein the second planar surface of said radiating element is substantially in parallel with the first planar surface of said ground plane;
a first connecting line coupled to a first edge of said ground plane and to a second edge of said radiating element at a first contact location; and
a second connecting line coupled to the second edge of said radiating element at second and third contact locations.
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Accused Products
Abstract
A mono-band planar inverted F antenna (PIFA) structure comprises a planar radiating element having a first area, and a ground plane having a second area that is substantially parallel to the radiating element first area. An electrically conductive first line is coupled to the radiating element at a first contact located at an edge on a side of the radiating element. The first line is also coupled to the ground plane. An electrically conductive second line is coupled to the radiating element at second and third contacts located along the same side as the first line, but at different locations on the edge than the first contact. Useable bandwidth of the PIFA is increased by using multiple contact locations to couple the conductive second line to the radiating element. The first and second lines are adapted to couple to a desired impedance, e.g., 50 ohms, at frequencies of operation of the PIFA.
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Citations
26 Claims
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1. An antenna, comprising:
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a ground plane having a first planar surface and a first area;
a radiating element having a second planar surface and a second area, wherein the second planar surface of said radiating element is substantially in parallel with the first planar surface of said ground plane;
a first connecting line coupled to a first edge of said ground plane and to a second edge of said radiating element at a first contact location; and
a second connecting line coupled to the second edge of said radiating element at second and third contact locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A planar inverted F antenna, comprising:
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a ground plane having a first planar surface and a first area;
a radiating element having a second planar surface, and a second area, wherein the second planar surface of said radiating element being substantially in parallel with the first planar surface of said ground plane;
a first connecting line coupled to an edge of said ground plane and to an edge of said radiating element;
a connecting bar coupled to the edge of said radiating element on both sides of said first connecting line, and a second connecting line coupled to the connecting bar.
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21. A planar inverted F antenna, comprising:
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a ground plane having a first planar surface, a first circumference and a first plurality of edges on the first circumference;
a radiating element having a second planar surface, a second circumference and a second plurality of edges on the second circumference, the second planar surface of said radiating element being substantially in parallel with the first planar surface of said ground plane;
a first connecting line coupled to a first edge of the first plurality of edges and a first edge of the second plurality of edges;
a connecting bar coupled to said first edge of the second plurality of edges on both sides of said first connecting line, and a second connecting line coupled to said connecting bar.
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22. A method of fabricating a wide bandwidth planar inverted F antenna, comprising the steps of:
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forming a ground plane on a first planar surface;
forming a radiating element on a second planar surface, wherein the second planar surface is substantially in parallel with the first planar surface;
coupling a first connecting line to a first edge of the ground plane and to a second edge of the radiating element at a first contact location; and
coupling a second connecting line to the second edge of the radiating element at second and third contact locations. - View Dependent Claims (23, 24)
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25. A radio system having a planar inverted F antenna (PIFA), said system comprising:
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a ground plane having a first planar surface and a first area;
a radiating element having a second planar surface and a second area, wherein the second planar surface of said radiating element is substantially in parallel with the first planar surface of said ground plane;
a first connecting line coupled to a first edge of said ground plane and to a second edge of said radiating element at a first contact location; and
a second connecting line coupled to the second edge of said radiating element at second and third contact locations, and first and second connecting lines are adapted to couple to a radio at a desired impedance. - View Dependent Claims (26)
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Specification