Sheet impedance characteristics for bound thin sheets of metal-coated microballoons

Author

Dinbergs, A.E. ; Auckland, D.T.

Author_Institution

Atlantic Aerospace Electronics Corp., Greenbelt, MD, USA

fYear

1992

fDate

18-25 June 1992

Firstpage

268

Abstract

A sheet impedance characterization for bound thin sheets of metal-coated microballoons has been investigated. The binder material is a urethane that can be made as thin as 1 to 2 mil. The microballoons are hollow ceramic spheres coated with 100 to 200 AA of silver that are 10 to 100 mu m in diameter. The dependence of sheet impedance on the volume fraction of the microballoons, the coating thickness, the microballoon diameter, and the binder thickness has been determined by measurements. Thus, a range of sheet impedances can be synthesized easily and inexpensively by appropriate specification of the raw design parameters.<>

Keywords

balloons; coatings; electric impedance measurement; metals; Ag; binder material; binder thickness; bound thin sheets; coating thickness; design parameters; hollow ceramic spheres; measurements; metal-coated microballoons; microballoon diameter; sheet impedance; urethane; volume fraction; Additives; Conducting materials; Dielectric losses; Dielectric materials; Dielectric measurements; Impedance measurement; Permittivity; Sheet materials; Silver; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0730-5

Type

conf

DOI

10.1109/APS.1992.221947

Filename

221947