Accession Number:

ADA280251

Title:

Processing, Packaging, and Characterization of Electroceramic Materials for Phased Array Antennas

Descriptive Note:

Final rept.

Corporate Author:

ARMY RESEARCH LAB WATERTOWN MA MATERIALS DIRECTORATE

Personal Author(s):

• Sengupta, L. C.
• Ngo, E.
• Stowell, S.
• O'Day, M. E.
• Lancto, R.

Report Date:

1994-05-01

Pagination or Media Count:

24.0

Abstract:

As a part of an effort to optimize the electronic device performance in the ceramic phase shifter, various composites of BSTO combined with other nonelectrically active oxide ceramics have been formulated. In general, the composites have reduced dielectric constants and loss tangents and have high tunabilities, which reduce the overall impedance mismatch and the insertion loss of the device. The combination of electronic properties of these materials offer substantially higher operating frequencies, 10 GHz and above. Grain size and phase analysis have examined use SEM and X-ray diffraction. The packaging of the phase shifter materials electroding materials, electrode shapes, and encapsulation materials will be discussed. Barium strontium titanate.

Descriptors:

• *ANTENNA ARRAYS
• *CERAMIC MATERIALS
• *COMPOSITE MATERIALS
• ALUMINATES
• DIELECTRICS
• ELECTRICAL PROPERTIES
• IMPEDANCE
• INSERTION LOSS
• MICROSTRUCTURE
• OXIDES
• PACKAGING
• PHASE SHIFT
• PHASED ARRAYS
• PROCESSING
• X RAY DIFFRACTION

Subject Categories:

• Electrical and Electronic Equipment
• Ceramics, Refractories and Glass
• Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE