Zhongling Ba, Xiong Wang. High-Efficiency Wideband Millimeter Wave Metasurface Structure with Gradient Phase[J]. Laser & Optoelectronics Progress, 2019, 56(18): 181601
- Laser & Optoelectronics Progress
- Vol. 56, Issue 18, 181601 (2019)
Fig. 1. Diagram of unit structure
Fig. 2. Structure of 16 intermediate layers of metal
Fig. 3. Transmission amplitude and phase difference of 16 unit structures in working frequency band. (a) Transmission amplitude; (b) phase difference
Fig. 4. Distribution of unit structures used to generate planar lens
Fig. 5. 2D orientation diagrams of plane lens with different frequencies. (a) 55 GHz; (b) 60 GHz; (c) 75 GHz
Fig. 6. Cross-sectional views in propagation direction with different frequencies. (a) 55 GHz; (b) 60 GHz; (c) 75 GHz
Fig. 7. Cross-sectional views parallel to propagation direction with different frequencies. (a) 55 GHz; (b) 60 GHz; (c) 75 GHz
Fig. 8. Unit structure distribution for generating OAM wave
Fig. 9. Phase diagrams, amplitude maps, and phase purity plots with different frequencies. (a)-(c) 55 GHz; (d)-(f) 65 GHz; (h)-(j) 75 GHz
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Table 1. Detailed dimensions of unit structures
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