Multi-band planar antenna
First Claim
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1. A multi-band planar antenna, comprising:
- a flat dielectric substrate having a first surface, a second surface that is generally parallel to said first surface, a first edge, and a second edge which is located generally opposite said first edge;
a first triangular-shaped metal radiating element on said first surface, said radiating element having a triangle apex which is formed by the intersection of two linear triangle sides, and said radiating element having a linear triangle base at whose opposite ends said triangle base being located generally adjacent to said first edge;
a metal feed line including and formed as an extension of said triangle apex, said feed line extending in a direction away from said triangle base and extending from said triangle apex toward said second edge of said substrate;
a metal ground plane element on said second surface, said ground plane element having a first edge located generally adjacent to said second edge of said substrate; and
said ground plane element having a second edge that dimensionally overlaps said feed line and only said apex of said radiating element;
said ground plane element being electrically connected to said radiating element;
said radiating element having at least one opening formed therein, thereby providing a multiplicity of current paths which give rise to the multi-banding characteristics of the antenna.
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Abstract
A compact, multi-band planar antenna for wireless communication devices is disclosed and which comprises a dielectric substrate having a first radiating element formed on one side thereof. The radiating element has a triangular shape and has an opening formed therein. A ground plane element is formed on the other side of the substrate. Various embodiments of the antenna are also disclosed.
33 Citations
11 Claims
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1. A multi-band planar antenna, comprising:
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a flat dielectric substrate having a first surface, a second surface that is generally parallel to said first surface, a first edge, and a second edge which is located generally opposite said first edge;
a first triangular-shaped metal radiating element on said first surface, said radiating element having a triangle apex which is formed by the intersection of two linear triangle sides, and said radiating element having a linear triangle base at whose opposite ends said triangle base being located generally adjacent to said first edge;
a metal feed line including and formed as an extension of said triangle apex, said feed line extending in a direction away from said triangle base and extending from said triangle apex toward said second edge of said substrate;
a metal ground plane element on said second surface, said ground plane element having a first edge located generally adjacent to said second edge of said substrate; and
said ground plane element having a second edge that dimensionally overlaps said feed line and only said apex of said radiating element;
said ground plane element being electrically connected to said radiating element;
said radiating element having at least one opening formed therein, thereby providing a multiplicity of current paths which give rise to the multi-banding characteristics of the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification