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Effect of enhanced current crowding in a CPW with a thin ferroelectric film
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- Carlsson, Erik F., 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gevorgian, Spartak, 1948 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
- (creator_code:org_t)
- Institution of Engineering and Technology (IET), 1997
- 1997
- English.
- In: Electronics Letters. - : Institution of Engineering and Technology (IET). - 1350-911X .- 0013-5194. ; 33:2, s. 145-146
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Enhanced current crowding is predicted at the edges of the conducting strips in thin ferroelectric film coplanar waveguides (CPWs). A minimum current crowding depth is expected, which depends on the CPW geometry and dielectric constant of the ferroelectric film. In practical CPW devices the enhanced current crowding can increase the conductor losses by up to four times. The current crowding depth may be smaller than the skin depth or London penetration depth (for high temperature superconducting CPW)
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- coplanar waveguides current distribution electric fields ferroelectric thin films losses microwave devices permittivity waveguide theory
Publication and Content Type
- art (subject category)
- ref (subject category)
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