Communications: radio wave antennas – Antennas – Microstrip
Patent
1994-06-15
1996-09-17
Hajec, Donald T.
Communications: radio wave antennas
Antennas
Microstrip
343778, 333156, 501137, H01Q 138
Patent
active
055572863
ABSTRACT:
An improved BST dielectric powder is created used a sol-gel procedure. Addition of graphite to the powder, followed by a firing of the mixture results in a highly porous BST substrate, with the included graphite being burned off. By adjustment of the amount of added graphite, the porosity of the BST substrate is widely adjustable and enables achievement of a low bulk dielectric constant. A low dielectric filler is added to the fired substrate so as to provide a composite substrate with physical rigidity. Conductive layers are then adhered to the composite substrate to enable a tuning of the dielectric constant in accordance with applied DC voltage potentials. Antenna and other applications of the improved composite BST substrate are described.
REFERENCES:
patent: 5206613 (1993-04-01), Collier et al.
patent: 5272349 (1993-12-01), Micheli et al.
patent: 5309166 (1994-05-01), Collier et al.
patent: 5312790 (1994-05-01), Sengupta et al.
patent: 5334958 (1994-08-01), Babbitt et al.
patent: 5386120 (1995-01-01), Micheli et al.
patent: 5427988 (1995-06-01), Sengupta et al.
"Sol-Gel Processes",Reuter Advanced Materials, vol. 3, No. 5, 1991, pp. 258-259.
Selmi Fathi
Varadan Vasundara V.
Varadan Vijay K.
Hajec Donald T.
Ho Tan
Monahan Thomas J.
The Penn State Research Foundation
LandOfFree
Voltage tunable dielectric ceramics which exhibit low dielectric does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage tunable dielectric ceramics which exhibit low dielectric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage tunable dielectric ceramics which exhibit low dielectric will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-416351