Voltage variable metal/dielectric composite structure

A voltage variable composite structure comprising a square lattice of unit cells of height H, width W and length L, each unit cell comprising:

• a) a first layer of metal;
• b) a second layer of low-loss dielectric material with a first metal via, traversing the entire thickness of said low-loss dielectric material;
• said first layer joined to the top of said second layer;
• said low-loss dielectric material having a dielectric constant ∈substrate;
• c) a third layer of a voltage variable dielectric material joined to the bottom of said second layer;
• said voltage variable dielectric material having a dielectric constant ∈VVD and a thickness T;
• d) a fourth layer of a patterned thin metallic film;
• said patterned thin metallic film comprising a metal capacitor connected to a first metal contact and a second metal contact;
• said capacitor having a width Wid and a gap G;
• said fourth layer joined to the bottom of said third layer so that said first metal via is positioned adjacent said first metal contact;
• e) a fifth layer of low-loss dielectric material impregnated with a second metal via, traversing the entire thickness of said low-loss dielectric material;
• said fifth layer joined to the bottom of said fourth layer so that said second metal via contacts said second metal contact;
• said low-loss dielectric material having a dielectric constant ∈substrate;
• and
• f) a sixth layer of metal joined to the bottom of said fifth layer;
• the dimensions of said structure being selected to produce an effective dielectric constant ∈eff in accordance with the following formulae:
• ∈eff=∈substrate+Cap*H(W*L)
• Cap=∈VVD*Wid*T/G