DISH ANTENNA USING A PROJECTED ARTIFICIAL MAGNETIC MIRROR
A flat dish antenna includes a plurality of concentric coils, a plurality of eccentric coils, a metal backing, a dielectric material, and an antenna structure. The pluralities of concentric coils and eccentric coils are on a layer of a substrate. A concentric coil has a radiation pattern that is substantially normal to a plane of the concentric coil and an eccentric coil has a radiation pattern that's is offset from normal to a plane of the eccentric coil. The metal backing is on another layer of the substrate and the dielectric material is between the layer and the other layer of the substrate. The concentric coils and the eccentric coils are electrically coupled to the metal backing to produce a distributed inductor-capacitor networking that provides a focal point based on a combination of their radiation patterns. The antenna structure is located proximal to the focal point.
1 . A projected artificial magnetic mirror (PAMM) effective dish comprises:
a concentric coil on a layer of a substrate, wherein the concentric coil has a radiation pattern that is substantially normal to a plane of the concentric coil;
an eccentric coil on the layer of the substrate, wherein the eccentric coil has a radiation pattern that's is offset from normal to a plane of the eccentric coil;
a metal backing on another layer of the substrate; and
a dielectric material between the layer and the other layer of the substrate, wherein the concentric coil and the eccentric coil are electrically coupled to the metal backing to produce a distributed inductor-capacitor networking that provides a PAMM focal point based on a combination of the radiation patterns of the concentric coil and the eccentric coil.
2 . The PAMM effective dish of claim 1 further comprises:
a plurality of concentric coils that includes the concentric coil; and
a plurality of eccentric coils that includes the eccentric coil, wherein the plurality of eccentric coils at least partially surrounds the plurality of concentric coils.
3 . The PAMM effective dish of claim 2 further comprises:
a plurality of second eccentric coils, wherein a second eccentric coil of the plurality of second eccentric coils has a second radiation pattern that is offset from normal to a plane of the second eccentric coil, and wherein the plurality of second eccentric coils at least partially surrounds the plurality of eccentric coils.
4 . The PAMM effective dish of claim 2 further comprises:
the plurality of concentric coils arranged in a first pattern; and
the plurality of concentric coils arranged in a pattern corresponding to the first pattern.
5 . The PAMM effective dish of claim 2 further comprises:
an imbalance pattern of the plurality of eccentric coils to offset the focal point from a center of the plurality of concentric coils.
6 . The PAMM effective dish of claim 1 , wherein the concentric coil comprises:
a metal trace having a spiral shape.
7 . The PAMM effective dish of claim 1 further comprises:
the concentric coil including a plurality of metal segments and a plurality of switching elements to configure a shape for the concentric coil; and
the eccentric coil include a second plurality of metal segments and a second plurality of switching elements to configure a shape for the eccentric coil.
8 . The PAMM effective dish of claim 1 , wherein the electrical coupling comprises at least one of:
a direct electrical using a via; and
a capacitive coupling.
9 . A flat dish antenna comprises:
a plurality of concentric coils on a layer of a substrate, wherein a concentric coil of the plurality of concentric coils has a radiation pattern that is substantially normal to a plane of the concentric coil;
a plurality of eccentric coils on the layer of the substrate, wherein an eccentric coil of the plurality of eccentric coils has a radiation pattern that's is offset from normal to a plane of the eccentric coil, wherein the plurality of eccentric coils at least partially surrounds the plurality of concentric coils;
a metal backing on another layer of the substrate;
a dielectric material between the layer and the other layer of the substrate, wherein the plurality of concentric coils and the plurality of eccentric coils are electrically coupled to the metal backing to produce a distributed inductor-capacitor networking that provides a focal point based on a combination of the radiation patterns of the plurality of concentric coil and the plurality of eccentric coil; and
an antenna structure located proximal to the focal point.
10 . The flat dish antenna of claim 9 , wherein the antenna structure comprises at least one of:
a monopole antenna;
a dipole antenna;
a plurality of discrete antenna elements; and
a helical coil antenna.
11 . The flat dish antenna of claim 9 further comprises:
the antenna structure on still another layer of the substrate, wherein the substrate includes at least one of an integrated circuit (IC) die, an IC package substrate, a printed circuit board, plastic substrate for automobile parts, and non-conductive building material for homes or buildings.
12 . The flat dish antenna of claim 9 further comprises at least one of:
the plurality of concentric coils having a first size and the plurality of eccentric coils having a corresponding first size to establish a 60 GHz frequency band of operation;
the plurality of concentric coils having a second size and the plurality of eccentric coils having a corresponding second size to establish a satellite C-band of operation;
the plurality of concentric coils having a third size and the plurality of eccentric coils having a corresponding third size to establish a satellite K-band of operation;
the plurality of concentric coils having a fourth size and the plurality of eccentric coils having a corresponding fourth size to establish a 1800-1900 MHz frequency band of operation;
the plurality of concentric coils having a fifth size and the plurality of eccentric coils having a corresponding fifth size to establish a 2.4 GHz frequency band of operation; and
the plurality of concentric coils having a sixth size and the plurality of eccentric coils having a corresponding sixth size to establish a 5 GHz frequency band of operation.
13 . The flat dish antenna of claim 9 further comprises:
a plurality of second eccentric coils, wherein a second eccentric coil of the plurality of second eccentric coils has a second radiation pattern that is offset from normal to a plane of the second eccentric coil, and wherein the plurality of second eccentric coils at least partially surrounds the plurality of eccentric coils.
14 . The flat dish antenna of claim 9 further comprises:
the plurality of concentric coils arranged in a first pattern; and
the plurality of concentric coils arranged in a pattern corresponding to the first pattern.
15 . The flat dish antenna of claim 9 further comprises:
an imbalance pattern of the plurality of eccentric coils to offset the focal point from a center of the plurality of concentric coils.
16 . The flat dish antenna of claim 9 , wherein the concentric coil comprises:
a metal trace having a spiral shape.
17 . The flat dish antenna of claim 9 further comprises:
the concentric coil including a plurality of metal segments and a plurality of switching elements to configure a shape for the concentric coil; and
the eccentric coil include a second plurality of metal segments and a second plurality of switching elements to configure a shape for the eccentric coil.
18 . The flat dish antenna of claim 9 , wherein the electrical coupling comprises at least one of:
a direct electrical using a via; and
a capacitive coupling.