Capacitively coupled patch antenna
AssigneeTallysman Wireless Inc.
InventorsGyles Panther, Rony E. Amaya, James Stuart Wight
Life of this patent
Estimating the term…
Abstract
Systems and methods relating to patch antennas. A patch antenna has a substrate, a resonant metal plate at one side of the substrate, and a ground plane at the other opposite side of the substrate. Two feed pins are used to couple the antenna to other circuitry. The feed pins pass through the substrate and holes in at the ground plane. The feed pins are physically disconnected from both the resonant metal plate and the ground plane. The feed pins are capacitively coupled to the resonant metal plate to provide an electronic connection between other circuitry and the patch antenna.
Claims20
A patch antenna element comprising:
- a resonant metal plate;
- a ground plate;
- a dielectric substrate slab sandwiched between the resonant metal plate and the ground plate;
- the resonant metal plate forming a resonant plane and the ground plate forming a ground plane, the resonant plane and the ground plane being parallel to each other;
- and
- two feed pins orthogonally intersecting the resonant plane and the ground plane, each of the two feed pins being physically isolated from the ground plate and the resonant metal plate, each of the two feed pins comprising a first end protruding through a first aperture in the ground plate, each of the two feed pins further comprising a second end in proximity to a corresponding second aperture in the resonant metal plate, wherein the resonant metal plate is capacitively coupled to each of the two feed pins by a capacitive reactance between the resonant metal plate and each of the two feed pins;
- wherein
- two lines through a center of the resonant metal plate through each of the second ends form orthogonal axes within the resonant plane.
A patch antenna element comprising:
- a resonant metal plate;
- a ground plate;
- a dielectric substrate slab sandwiched between the resonant metal plate and the ground plate;
- the resonant metal plate forming a resonant plane and the ground plate forming a ground plane, the resonant plane and the ground plane being parallel to each other;
- and
- two feed pins orthogonally intersecting the plane, each of the two feed pins physically isolated from the ground plate and the resonant metal plate, each of the two feed pins comprising a first end protruding through a first aperture in the ground plate, each of the two feed pins further comprising a second end below a surface of the resonant plate and within the dielectric substrate slab, the second end being in proximity to an area where the resonant plate contacts the dielectric substrate slab, wherein the resonant metal plate is capacitively coupled to each of the two feed pins by a capacitive reactance between the resonant metal plate and each of the two feed pins;
- wherein
- two lines through a center of the resonant metal plate through each of the second ends form orthogonal axes within the resonant plane.
Dependencies are inferred from the claim text.