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Physical Bounds of Antennas

In English

Författare

Redaktör

  • Zhi Ning Chen

Summary, in English

Design of small antennas is challenging because fundamental physics limits the antennas performance. Physical bounds provide basic restrictions on the antenna performance solely expressed in the available antenna design space. These bounds offer antenna designers a priori information about the feasibility of antenna designs and a figure of merit for different antenna 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

Sidor

1-32

Publikation/Tidskrift/Serie

Handbook of Antenna Technologies

Dokumenttyp

Del av eller Kapitel i bok

Förlag

Springer

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

  • Physical bounds
  • Limitations
  • Stored energy
  • Q-factor
  • Small antennas
  • Circuit models
  • Mode expansions
  • Forward scattering
  • Sum rules
  • Convex optimization

Status

Published

Projekt

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

Forskningsgrupp

  • Electromagnetic theory

ISBN/ISSN/Övrigt

  • ISBN: 978-981-4560-75-7