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- Title
Lower RCS directional antenna by left-handed material.
- Authors
Wu, Rui-xin; Zhu, Jiang; Tan, Li-rong; Gu, Yan
- Abstract
We theoretically study the radiation of a current line source with a surrounding cylindrical shell of left-handed material (LHM). The far-field radiation pattern is obtained by solving the Maxwell equation in a cylindrical coordinate, which show that this radiation system has good directional emission characteristics and can be used as a directive antenna. The directive emission is explained due to the negative refraction and the focus effect occurring at the interface of the LHM shell. Compared with the parabolic reflector antenna with the same aperture size, our antenna has lower radar cross-section (RCS) in a broadband frequency range, providing a way to realize lower RCS antenna.
- Subjects
RADAR cross sections; ANTENNAS (Electronics); CYLINDRICAL shells; ELECTRIC currents; MATERIALS; ANTENNA radiation patterns; ELECTRON emission
- Publication
Applied Physics A: Materials Science & Processing, 2012, Vol 109, Issue 4, p955
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-012-7392-6