Electronically tunable ceramic materials including tunable dielectric and metal silicate phases
AssigneeParatek Microwave, Inc.
InventorsLuna H. Chiu, Xubai Zhang, Louise Sengupta
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Abstract
The present invention relates to electronically tunable dielectric materials which have favorable properties for many applications, including the area of radio frequency (RF) engineering and design. The electronically tunable materials include an electronically tunable dielectric phase such as barium strontium titanate in combination with a metal silicate phase such as Mg2SiO4. The electronically tunable materials may be provided in bulk, thin film and thick film forms for use in devices such as phased array antennas, tunable filters and the like.
Claims18
An electronically tunable dielectric material comprising;
- at least one electronically tunable dielectric phase comprising barium strontium titanate;
- and
- at least one metal silicate phase comprising a silicate of at least one metal selected from Be, Mg, Ca, Sr, Ba, Ra, Li, Na, K, Rb, Cs, Al, Zr, Zn, Fr, B, Fe, Mn, Cu, Ce, Cr, La, Y, Ti, Ta, Nb, Mo, W, Ni, Pd, Pb and Bi, wherein the metal silicate comprise from about 5 to about 65 weight percent of material.
A method of making an electronically tunable dielectric material comprising:
- mixing particles of at least one electronically tunable dielectric material and particles of at least one metal silicate material, wherein the electronically tunable dielectric material comprises barium strontium titanate, the metal silicate material comprises a silicate of at least one metal selected from Be, Mg, Ca, Sr, Ba, Ra, Li, Na, K, Rb, Cs, Al, Zr, Zn, Fr, B, Fe, Mn, Cu, Ce, Cr, La, Y, Ti, Ta, Nb, Mo, W, Ni, Pd, Pb and Bi, and the metal silicate comprises from about 5 to about 65 weight percent of the material;
- and
- sintering the material.
Dependencies are inferred from the claim text.