Patent ID: 8609017

Claim:
A method of making an electronically tunable dielectric material comprising: mixing particles of at least one electronically tunable dielectric material including barium strontium titanate and a total of from about 1 to about 80 weight percent of particles of at least two additional metal oxide materials, wherein the at least two additional metal oxide materials are selected from a group consisting of WO 3 , SnTiO 4 , ZrTiO 4 , CaSiO 3 , CaWO 4 , CaZrO 3 , PbO, and Bi 2 O 3 ; sintering the mixed particles, wherein the electronically tunable dielectric particles and the additional metal oxide particles have average particle sizes of from about 0.1 to about 5 micron, wherein the two additional metal oxide phases have a weight ratio of from about 1:100 to about 100:1; forming the electronically tunable dielectric material from the sintered mixed particles; measuring a dielectric constant, a tunability and a dielectric loss for the electronically tunable dielectric material; adjusting an amount of only one metal oxide material of the at least two additional metal oxide materials for the mixing step; repeating the mixing, sintering, forming, measuring and adjusting steps to change the dielectric constant of the electronically tunable dielectric material to a desired dielectric constant while maintaining the tunability and the dielectric loss of the electronically tunable dielectric material substantially the same.