Artificial dielectrics

[1][2] In addition, some artificial dielectrics may consist of irregular lattices, random mixtures, or a non-uniform concentration of particles.

Artificial dielectrics were proposed because of the need for lightweight structures and components for various microwave delivery devices.

The term artificial dielectric was originated by Winston E. Kock in 1948 when he was employed by Bell Laboratories.

It described materials of practical dimensions that imitated the electromagnetic response of natural dielectric solids.

The artificial dielectrics were borne out of a need for lightweight low loss materials for large and otherwise heavy devices.

When an electromagnetic field is applied to a natural dielectric, local responses and scattering occur on the atomic or molecular level.

It is a square lattice of thin parallel wires The initial research pertaining to this medium was conducted by J.

A metallic lens antenna and its inventor Winston E. Kock in 1946. This structure is one of the earliest examples of artificial dielectrics.
A three-dimensional lattice filled with two molecules A and B, here shown as black and white spheres.