Antenna and method of making the same
First Claim
1. An antenna comprising:
- a dielectric layer with an upper surface and a lower surface;
a feeding conductor pattern, which is provided on the upper surface of the dielectric layer; and
a grounding conductor portion, which is provided on the lower surface of the dielectric layer, wherein the surface of the grounding conductor portion includes a plurality of planar areas, each of which has a size that is shorter than the wavelength of an electromagnetic wave to transmit or receive, wherein a distance from a virtual reference plane to each said planar area is adjusted on an area-by-area basis, wherein the grounding conductor portion includes an array of conductor elements, each of which defines an associated one of the planar areas, and wherein the distance from at least one of the conductor elements to the reference plane is changeable.
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Accused Products
Abstract
An antenna according to the present invention includes a dielectric layer 102 with an upper surface and a lower surface, a signal line strip 101 provided on the upper surface of the dielectric layer 102, and a grounding conductor portion 104 provided on the lower surface of the dielectric layer 102. The surface of the grounding conductor portion 104 includes a plurality of planar areas, each of which has a size that is shorter than the wavelength of an electromagnetic wave to transmit or receive. A distance from a virtual reference plane to each planar area is adjusted on an area-by-area basis. Thus, an antenna, which can change various antenna parameters such as radiation directivity, gain and efficiency dynamically and adaptively according to incessantly changing propagation environment of radio wave, is provided.
49 Citations
16 Claims
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1. An antenna comprising:
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a dielectric layer with an upper surface and a lower surface;
a feeding conductor pattern, which is provided on the upper surface of the dielectric layer; and
a grounding conductor portion, which is provided on the lower surface of the dielectric layer, wherein the surface of the grounding conductor portion includes a plurality of planar areas, each of which has a size that is shorter than the wavelength of an electromagnetic wave to transmit or receive, wherein a distance from a virtual reference plane to each said planar area is adjusted on an area-by-area basis, wherein the grounding conductor portion includes an array of conductor elements, each of which defines an associated one of the planar areas, and wherein the distance from at least one of the conductor elements to the reference plane is changeable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification