| Summary: | 碩士 === 國立交通大學 === 電信工程研究所 === 105 === In this thesis, we propose a method to design and produce the two dimensional 90° rotating Eaton lens. The required values of equivalent refractive indices are achieved by using two different kinds of period square patches and mushroom structure cells. Parts of these unit cells are rotated in adaptation with the bending wave to improve its performance. We characterized the performance of the 90° rotating Eaton lens with the E-field distribution, far-field pattern and realized gain. In order to get the better far-field gain, additional parts which converting the incident wave into a surface wave, combined with the lens, and get the improved result in the electromagnetic simulation software. Finally, a fabric prototype of the lens was being manufactured and measurement. The experimental results verified the design and simulations.
It also mentioned many situations which people want to bend the electromagnetic wave about 90°. This work has providing the 90° bending function to the world. The lens will play an important role in the future.
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