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Physical bounds of antennas

In English

Författare

Summary, in English

Design of small antennas is challenging because fundamental physics limits the performance. Physical bounds provide basic restrictions on the antenna performance solely expressed in the available antenna design space. These limits offer antenna designers a-priori information about the feasibility of antenna designs and a figure of merit for different designs. Here, an overview of physical bounds on antennas and the development from circumscribing spheres to arbitrary shaped regions and embedded antennas are presented. The underlying assumptions for the methods based on circuit models, mode expansions, forward scattering, and current optimization are illustrated and their pros and cons are discussed. The physical bounds are compared with numerical data for several antennas.

Publiceringsår

2015

Språk

Engelska

Publikation/Tidskrift/Serie

Technical Report LUTEDX/(TEAT-7240)/1-38/(2015)

Dokumenttyp

Rapport

Förlag

Electromagnetic Theory Department of Electrical and Information Technology Lund University Sweden

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Projekt

  • EIT_CACO-EMD Complex analysis and convex optimization for EM design

Report number

TEAT-7240

Forskningsgrupp

  • Electromagnetic theory