Physical bounds and sum rules for high-impedance surfaces
Author
Summary, in English
High-impedance surfaces are artificial surfaces synthesized from periodic structures. The high impedance is useful as it does not short circuit electric currents and reflects electric fields without phase shift. Here, a sum rule is presented that relates frequency intervals having high impedance with the thickness of the structure. The sum rule is used to derive physical bounds on the bandwidth for high-impedance surfaces. Numerical examples are used to illustrate the result, and show that the physical bounds are tight.
Publishing year
2010
Language
English
Publication/Series
Technical Report LUTEDX/(TEAT-7198)/1-17/(2010)
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Document type
Report
Publisher
[Publisher information missing]
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
Report number
TEAT-7198
Research group
- Electromagnetic theory