Summary
International Symposium on Antennas and Propagation
2012
Session Number:2E2
Session:
Number:2E2-4
Wireless Reactive Networks -- A Paradigm for Near Field Coupled Antenna Systems --
Naoki Inagaki, Takanobu Tabata,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
The usage of electrically very small antennas in near field region (NFR) is fundamentally different from the usage in far field region (FFR). The principal target in the design of the FFR applied electrically small antennas is to lower the Q factor whose limit has been given by L.J. Chu in 1948. On the contrary, the NFR applied antennas are desired to be non-radiative and lossless with as high Q value as possible. The Copernican-like revolution is necessary in the designer's mind. This paper proposes wireless reactive networks as a new paradigm for antenna design in NFR applications. No radiation approximation applies to wide variety of systems, and the extended use of the Foster's reactance theorem provides facility in the design of these systems.