Granted Patent B2

US 10,256,545 · App. 16/017,410 · Granted Apr 9, 2019

Abstract

Claims (15)

1. A radiator structure, comprising:

a ground surface having a plurality of openings disposed therethrough;

first and second antenna loops with each loop disposed in a respective plane perpendicular to the ground surface, each loop having a first end shorted to the ground surface and each loop having a second end disposed in a respective one of the plurality of openings, wherein the antenna loops comprise self-supporting metal-only structures such that the antenna loops are not embedded in dielectric materials;

a third antenna loop disposed in the same plane as the first antenna loop, the third loop having a first end shorted to the ground surface and a second end disposed in a respective one of the plurality of openings; and

a fourth antenna loop disposed in the same plane as the second antenna loop, the fourth loop having a first end shorted to the ground surface and a second end disposed in a respective one of the plurality of openings,

wherein the first, second, third, and fourth antenna loops are arranged in a plus-shaped pattern and the grounded ends of the first, second, third, and fourth antenna loops are disposed proximate the center of the plus-shape.

2. A radiator structure, comprising:

a ground surface having a plurality of openings disposed therethrough;

first and second antenna loops with each loop disposed in a respective plane perpendicular to the ground surface, each loop having a first end shorted to the ground surface and each loop having a second end disposed in a respective one of the plurality of openings, wherein the antenna loops comprise self-supporting metal-only structures such that the antenna loops are not embedded in dielectric materials;

a third antenna loop disposed in the same plane as the first antenna loop, the third loop having a first end shorted to the ground surface and a second end disposed in a respective one of the plurality of openings; and

a fourth antenna loop disposed in the same plane as the second antenna loop, the fourth loop having a first end shorted to the ground surface and a second end disposed in a respective one of the plurality of openings,

wherein the first, second, third, and fourth antenna loops are arranged in a plus-shaped pattern and the plurality of openings are disposed proximate the center of the plus-shape.

3. A two-dimensional array of the radiator structure of claim 1 or 2 .

4. The array of claim 3 , wherein the two dimensional array comprises dual-polarized differentially-fed shorted dipoles.

5. The array of claim 3 , wherein a selected pair of adjacent antenna loops in the two dimensional array are capacitively coupled to one another.

Assignments (7)