Title :
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
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;
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
DOI :
10.1109/APS.1992.221947
