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Sum rules and physical bounds in electromagnetic theory

Författare

Summary, in English

Sum rules are useful in many branches of physics and engineering as they relate all spectrum parameter values with their asymptotic expansions. Properties of the dynamic response can hence be inferred by the, in many cases much simpler, static response. This has e.g., been used for lossless matching networks, radar absorbers, extinction cross section, partial realized gain of antennas, high-impedance surfaces, transmission cross section, transmission coefficients, and temporal dispersion of metamaterials. Here, several sum rules and their associated physical bounds are reviewed and it is shown that integral identities for Herglotz functions offer a unified approach in deriving them.

Publiceringsår

2010

Språk

Engelska

Sidor

37-40

Publikation/Tidskrift/Serie

[Host publication title missing]

Dokumenttyp

Konferensbidrag

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

International Symposium on Electromagnetic Theory, 2010

Conference date

2010-08-16 - 2010-08-19

Conference place

Berlin, Germany

Status

Published

Forskningsgrupp

  • Electromagnetic theory