Tunable dielectric compositions including low loss glass

Details Tunable dielectric compositions including low loss glass Tunable dielectric compositions including low loss glass

2005-06-14

2005-06-14

Sample, David (Department: 1755)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S134000, C501S135000, C501S136000, C501S137000, C501S138000, C501S139000, C501S066000, C501S067000

Reexamination Certificate

active

06905989

ABSTRACT:
Tunable dielectric materials including an electronically tunable dielectric ceramic and a low loss glass additive are disclosed. The tunable dielectric may comprise a ferroelectric perskovite material such as barium strontium titanate. The glass additive may comprise boron, barium, calcium, lithium, manganese, silicon, zinc and/or aluminum-containing glasses having dielectric losses of less than 0.003 at 2 GHz. The materials may further include other additives such as non-tunable metal oxides and silicates. The low loss glass additive enables the materials to be sintered at relatively low temperatures while providing improved properties such as low microwave losses and high breakdown strengths.

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