Controlling the field distribution in waveguides with transformation optics

Zhiyu Wang; Yu Luo; Wanzhao Cui; Wei Ma; Liang Peng; Jiangtao Huangfu; Hongsheng Chen; Lixin Ran
June 2009
Applied Physics Letters;6/8/2009, Vol. 94 Issue 23, p234101
Academic Journal
Artificially designed transformation medium offers great opportunity to control the field distributions inside a waveguide. By rigorously solving Maxwell’s equations in cylindrical and rectangular waveguides, we show that filling waveguides with properly designed transformation medium with a space gradient can reduce the electric field at boundary to zero. Full-wave finite element modeling is also performed to confirm this point. This property can be used to reduce the probability of multipactor discharge at the surface of conductor inside a waveguide.


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