Title:
Coaxial-to-Waveguide Matching With e-Near-Zero Ultranarrow Channels and Bends
Author(s):
Andrea Alù, Nader Engheta
Source:
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Vol./Issue/Date:
Year:
2010
Page(s):
Keywords:
Abstract:
We propose the use of metamaterial-inspired ultranarrow channels at cutoff to realize an interesting matching between a coaxial antenna and a waveguide. The anomalous properties of a channel at cutoff, analogous to those of zero permittivity materials, allow a simple matching design, valid for arbitrary waveguides, with large degrees of freedom in terms of geometry, length and possible bending of the connecting channel. Moreover, the static-like properties of the channel allow such matching, independent of the relative position of the antenna and possible bending and abruptions along the channel
Document:
Reference Id:
553
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