Patent ID: 9711831
Date: 2017-07-18
CPC Classifications: G02B,G03H,H01P,H01Q

Claim:
1. An electromagnetic mode converting transmission line (TL) junction for a finite frequency range, comprising: a dielectric structure divided into a plurality of sub-wavelength voxels, wherein each voxel has a maximum dimension that is less than half of a wavelength of a frequency within the finite frequency range, and wherein each voxel is assigned one of a plurality of dielectric constants to approximate an identified distribution of dielectric constants, such that the mode converting TL junction converts electromagnetic energy from a first mode to a second mode for at least a first waveguide operational in the finite frequency range, wherein the mode converting TL junction comprises a metamaterial with an effective dielectric constant less than 1 for at least a portion of the finite frequency range.