EP 0705230 A4 19960717 - NOVEL CERAMIC FERROELECTRIC COMPOSITE MATERIAL - BSTO-MgO
Title (en)
NOVEL CERAMIC FERROELECTRIC COMPOSITE MATERIAL - BSTO-MgO
Title (de)
NEUER KERAMISCHER FERROELEKTRISCHER VERBUNDWERKSTOFF
Title (fr)
NOUVEAU MATERIAU COMPOSITE CERAMIQUE FERROELECTRIQUE A BASE DE BSTO/MgO
Publication
Application
Priority
- US 9405649 W 19940524
- US 7629193 A 19930609
- US 20744694 A 19940307
Abstract (en)
[origin: WO9429236A1] A novel ceramic ferroelectric material having a low dielectric constant, extremely low loss and high tunability. The material is a composite comprising Barium Strontium Titanate (BSTO) and a ceramic material having a low dielectric constant. The preferred composite is represented by Ba1-xSrxTiO3-MgO, wherein x is greater than 0.00, but less than or equal to 0.75, and wherein the percent weight ratio between Ba1-xSrxTiO3 and MgO ranges from approximately 99 % - 40 % and 1 % - 60 %, respectively. The novel materials possess superior electronic properties; and they may be employed in various antenna systems at both microwave and millimeter wave range frequencies.
IPC 1-7
IPC 8 full level
C04B 35/46 (2006.01); C04B 35/465 (2006.01); H01Q 1/38 (2006.01)
CPC (source: EP)
C04B 35/465 (2013.01); H01Q 1/38 (2013.01)
Citation (search report)
- [AP] DATABASE WPI Week 9339, Derwent World Patents Index; AN 93-306543, XP002000889
- See references of WO 9429236A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9429236 A1 19941222; AU 7095194 A 19950103; CA 2164594 A1 19941222; EP 0705230 A1 19960410; EP 0705230 A4 19960717; JP H08511502 A 19961203
DOCDB simple family (application)
US 9405649 W 19940524; AU 7095194 A 19940524; CA 2164594 A 19940524; EP 94920023 A 19940524; JP 50181795 A 19940524