Patent ID: 9548451
Date: 2017-01-17
CPC Classifications: B82Y,G02B,H01L,H01P,H01Q

Claim:
1. A method for making an apparatus having a reduced reflection from its surface, the method comprising: fabricating a first capacitive circuit analog sheet on a dielectric material; covering the first capacitive circuit analog sheet with additional dielectric material, wherein the capacitive circuit analog sheet is configured to produce a reflection that adds out of phase with a reflection from an incident side of the dielectric material; fabricating a second capacitive circuit analog sheet on the additional dielectric material, wherein the first and second capacitive circuit analog sheets include conductive patches configured to have high impedance for transverse magnetic (TM) polarization, wherein at least one of the first capacitive circuit analog sheet or the second capacitive circuit analog sheet is fabricated from metallic gold patches; and covering the second capacitive circuit analog sheet with still more dielectric material to produce a reflection that adds out of phase with the incident side of the dielectric material.