Metamaterials for surfaces and waveguides
First Claim
Patent Images
1. An apparatus, comprising:
- a waveguide; and
a plurality of adjustable elements distributed along the waveguide, each having a dipolar response to a guided wave mode of the waveguide, the plurality of adjustable elements corresponding to a plurality of apertures in a bounding conducting surface of the waveguide;
wherein the dipolar response is a magnetic dipolar response or an electric dipolar response.
1 Assignment
0 Petitions
Accused Products
Abstract
Complementary metamaterial elements provide an effective permittivity and/or permeability for surface structures and/or waveguide structures. The complementary metamaterial resonant elements may include Babinet complements of “split ring resonator” (SRR) and “electric LC” (ELC) metamaterial elements. In some approaches, the complementary metamaterial elements are embedded in the bounding surfaces of planar waveguides, e.g. to implement waveguide based gradient index lenses for beam steering/focusing devices, antenna array feed structures, etc.
-
Citations
22 Claims
-
1. An apparatus, comprising:
-
a waveguide; and a plurality of adjustable elements distributed along the waveguide, each having a dipolar response to a guided wave mode of the waveguide, the plurality of adjustable elements corresponding to a plurality of apertures in a bounding conducting surface of the waveguide; wherein the dipolar response is a magnetic dipolar response or an electric dipolar response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An apparatus, comprising:
-
a waveguide; and a plurality of adjustable elements distributed along the waveguide, each haying a dipolar response to a guided wave mode of the waveguide, the plurality of adjustable elements corresponding to a plurality of apertures in a bounding conducting surface of the waveguide; wherein the waveguide is a planar waveguide, a transmission line structure, or a microstrip waveguide. - View Dependent Claims (11, 12, 13)
-
-
14. An apparatus, comprising:
-
a waveguide; and a plurality of adjustable elements distributed along the waveguide, each having adipolar response to a guided wave mode of the waveguide, the plurality of adjustable elements corresponding to a plurality of apertures in a bounding conducting surface of the waveguide; wherein the adjustable elements have varied capacitances or inductances or both.
-
-
15. An apparatus, comprising:
-
a waveguide; and a plurality of adjustable elements distributed along the waveguide, each having a dipolar response to a guided wave mode of the waveguide, the plurality of adjustable elements corresponding to a plurality of apertures in a bounding conducting surface of the waveguide; wherein the adjustable elements include lumped devices; and wherein the lumped devices include lumped capacitors, varactors, or active devices. - View Dependent Claims (16, 17, 18, 19)
-
-
20. An apparatus, comprising:
-
a waveguide; and a plurality of adjustable elements distributed along the waveguide, each having a dipolar response to a guided wave mode of the waveguide, the plurality of adjustable elements corresponding to a plurality of apertures in a bounding conducting surface of the waveguide; wherein the adjustable elements have adjustable capacitances. - View Dependent Claims (21)
-
-
22. An apparatus, comprising:
-
a waveguide; and a plurality of adjustable elements distributed along the waveguide, each having adipolar response to a guided wave mode of the waveguide, the plurality of adjustable elements corresponding to a plurality of apertures in a bounding conducting surface of the waveguide; wherein the adjustable elements have narrow-band responses for frequencies in a vicinity of one or more resonance frequencies of the adjustable elements.
-
Specification