科研之友
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摘要
In this article, a novel method is introduced to design a high efficiency and broadband reflectarray.Several techniques will be introduced for designing wideband reflectarray. First, by using fractal ring unit cell with 700 degrees phase range; second, by smoothing phase tapering on reflectarray surface; and finally, by finding the optimum free reference phase and f/D ratio. Using these ideas, a 625 element array prototype of 25 x 25 cm2 dimensions with 1 dB gain bandwidth of 12% and radiation efficiency close to 66% at 10 GHz is simulated and tested.
- 出版日期2013-4
