Book contents
- Frontmatter
- Contents
- Preface
- Acknowledgements
- 1 Introduction
- 2 Small antennas
- 3 Properties of small antennas
- 4 Fundamental limitations of small antennas
- 5 Subjects related with small antennas
- 6 Principles and techniques for making antennas small
- 7 Design and practice of small antennas I
- 8 Design and practice of small antennas II
- 9 Evaluation of small antenna performance
- 10 Electromagnetic simulation
- 11 Glossary
- Index
- References
8 - Design and practice of small antennas II
Published online by Cambridge University Press: 05 January 2014
Book contents
- Frontmatter
- Contents
- Preface
- Acknowledgements
- 1 Introduction
- 2 Small antennas
- 3 Properties of small antennas
- 4 Fundamental limitations of small antennas
- 5 Subjects related with small antennas
- 6 Principles and techniques for making antennas small
- 7 Design and practice of small antennas I
- 8 Design and practice of small antennas II
- 9 Evaluation of small antenna performance
- 10 Electromagnetic simulation
- 11 Glossary
- Index
- References
Summary
FSA (Functionality Small Antennas)
Introduction
A Functionally Small Antenna (FSA) is an antenna system that has enhanced or improved performances without increasing the antenna dimensions. The FSA is constituted by (1) integrating or combining either radiating or non-radiating components into an antenna system so as to improve or enhance the antenna performance, and (2) adding some function to an antenna so that the antenna will perform with newly added function. The Functionally Small Antenna system is not necessarily dimensionally small; however, it can be referred to equivalently as a small antenna, because enhanced performances or added functions compare to a larger antenna that could not be accomplished otherwise without enlarging the antenna dimensions.
Components to be integrated or combined into an antenna structure are electronic devices (either passive or active). There are many cases where antenna elements, regardless of either linear or planar, are combined with other antenna elements to constitute an integrated antenna. An antenna composed with integrated structure is referred to as an Integrated Antenna System (IAS). An IAS containing active components is referred to as an active IAS.
- Type
- Chapter
- Information
- Modern Small Antennas , pp. 266 - 370Publisher: Cambridge University PressPrint publication year: 2014
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