Microstrip patch antenna
First Claim
1. A patch radiator antenna comprising:
- a sheet of conductive material;
a dielectric substrate having a first and second surface, the sheet of conductive material disposed upon the first surface of the dielectric substrate;
a plurality of patch radiator elements disposed upon the second surface of the dielectric substrate, each one of the plurality of patch radiator elements having sides with a width and a length, said plurality of patch radiator elements comprising;
a first patch radiator element comprising a feed probe to couple said first patch radiator element to an RF signal source;
at least one second patch radiator element comprising a microstrip feed along the width of the second patch radiator element, the at least one second patch radiator element disposed fore of the first patch radiator element which is disposed aft of the at least one second patch radiator element; and
a third different patch radiator element comprising a microstrip feed along the width of the third different patch radiator element, the third different patch radiator element disposed fore of the first patch radiator element which is disposed aft of the third different patch radiator, the patch radiator antenna further comprising a first strip conductor having a first end and a second end, the first end connected to the microstrip feed of the third different patch radiator element and the second end connected along the length of the first patch radiator element; and
a second strip conductor having a first end and a second end, the first end connected to the microstrip feed and the second end connected along the length of the first patch radiator element.
1 Assignment
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Accused Products
Abstract
A patch radiator antenna is described including a sheet of conductive material and a dielectric substrate having a first and second surface, the sheet of conductive material disposed upon the first surface of the dielectric substrate. The patch radiator antenna further includes a plurality of patch radiator elements disposed upon the second surface of the dielectric substrate, each one of the plurality of patch radiator elements having sides with a width and a length. The plurality of patch radiator elements include a first patch radiator element having a feed probe to couple the first patch radiator element to an RF signal source and at least one second patch radiator element including a microstrip feed along the width of the patch radiator element, the at least one second patch radiator element disposed fore of the first patch radiator element. The patch radiator antenna further includes a strip conductor having a first end and a second end, the first end connected to the microstrip feed and the second end connected along the length of the first patch radiator element. With such an arrangement, a corporate feed for each patch radiator element is eliminated, thus reducing feed line radiation.
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Citations
16 Claims
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1. A patch radiator antenna comprising:
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a sheet of conductive material; a dielectric substrate having a first and second surface, the sheet of conductive material disposed upon the first surface of the dielectric substrate; a plurality of patch radiator elements disposed upon the second surface of the dielectric substrate, each one of the plurality of patch radiator elements having sides with a width and a length, said plurality of patch radiator elements comprising; a first patch radiator element comprising a feed probe to couple said first patch radiator element to an RF signal source; at least one second patch radiator element comprising a microstrip feed along the width of the second patch radiator element, the at least one second patch radiator element disposed fore of the first patch radiator element which is disposed aft of the at least one second patch radiator element; and a third different patch radiator element comprising a microstrip feed along the width of the third different patch radiator element, the third different patch radiator element disposed fore of the first patch radiator element which is disposed aft of the third different patch radiator, the patch radiator antenna further comprising a first strip conductor having a first end and a second end, the first end connected to the microstrip feed of the third different patch radiator element and the second end connected along the length of the first patch radiator element; and a second strip conductor having a first end and a second end, the first end connected to the microstrip feed and the second end connected along the length of the first patch radiator element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A patch radiator antenna comprising:
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a first patch radiator having a pair of length edges; and means for providing an image patch radiator element fore of the first patch radiator for providing a desired end fire excitation, said providing means comprising; a second patch radiator having a microstrip feed, the second patch radiator disposed fore of the first patch radiator which is disposed aft of the second patch radiator; a third patch radiator having a microstrip feed, the third patch radiator disposed fore of the first patch radiator which is disposed aft of the third patch radiator; and means for coupling a portion of RF energy propagating therethrough between the first patch radiator and the second patch radiator and between the first patch radiator and the third patch radiator, said coupling means comprising a first strip conductor having a first end and a second end, the first end connected to the first patch radiator along one of the length edges and the second end connected to the microstrip feed of the second patch radiator and a second strip conductor having a first end and a second end, the first end connected to the first patch radiator along a different one of the length edges and the second end connected to the microstrip feed of the third patch radiator. - View Dependent Claims (10, 11, 12, 13)
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14. A method of providing a patch radiator antenna comprising the steps of:
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providing a dielectric substrate having a first and second surface with a conductive material disposed on the first surface; disposing a plurality of patch radiator elements on the second surface of the dielectric substrate, each one of the plurality of patch radiator elements having a width and a length; and connecting a first patch radiator element to a second and a third different patch radiator element with a respective first and second strip conductor having a first end and a second end, said second and third different patch radiator element disposed fore of the first patch radiator element, the first end of the first strip conductor connected along the width of the second patch radiator element and the second end of the first strip conductor connected along the length of the first patch radiator and the first end of the second strip conductor connected along the width of the third patch radiator element and the second end of the second strip conductor connected along an opposing length of the first patch radiator. - View Dependent Claims (15, 16)
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Specification