期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 61, 期 1, 页码 33-44出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2012.2214994
关键词
Antennas; frequency-hopping; matching; metamaterials; multi-band
资金
- AFOSR under YIP award [FA9550-11-1-0009]
- National Science Foundation under NSF CAREER award [ECCS-0953311]
- AFOSR [FA9550-08-1-0220]
We present an analytical model and practical design tools to realize cylindrically-symmetric compact antennas based on the anomalous transmission properties of epsilon-near-zero (ENZ) ultranarrow radial channels. The flexibility and exotic propagation properties in ENZ metamaterial channels are exploited here to tune and match cylindrically-symmetric antennas, without the need of complex externalmatching networks, in order to realize exciting antenna designs in terms of size, complexity and efficiency. We first model a homogenized Drude dispersive ENZ metamaterial channel to feed a radial parallel-plate waveguide; next we suggest a practical realization of this channel by using radial fins; eventually, we apply the obtained design formulas to realize single- and multi-band cylindrical antennas with a wide tunability range. The designed antennas may operate in the ultra-high frequency (UHF) band and may be realistically tuned over a large bandwidth. We envision applications in frequency-hopping, multi-band, compact, omnidirectional antennas.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据