Patent ID: 7306855

Claim:
A dielectric substrate of the general formula Sr 2 RESbO 6 , comprising: said RE being Lutetium; said dielectric substrate being constructed of Sr 2 LuSbO 6 ; said general formula including an Sb 5+ constituent atom with a polarizability of about 1.2 Å 3 ; said dielectric substrate being heated for at least 20 hours at between 1400° C. and 1600° C.; said dielectric substrate is constructed in a thin film structure; said dielectric substrate having a density GM/CC of 6.90; said dielectric substrate having a low dielectric constant between 14.3 and 15.9; said dielectric substrate having an ordered perovskite cubic crystalline structure; and said dielectric substrate having a low dielectric loss less than 1×10 −3 .