Yaxin Chen, Xiangqiang Li, Jianqiong Zhang, Qingfeng Wang, Xianfeng Tang. Design of high power miniaturized stepped double semicircular waveguide mode-transducing antenna[J]. High Power Laser and Particle Beams, 2025, 37(5): 053001

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- High Power Laser and Particle Beams
- Vol. 37, Issue 5, 053001 (2025)

Fig. 1. Antenna profile

Fig. 2. Mode coupling of single step waveguide

Fig. 3. Multistep discontinuous geometry

Fig. 4. Stepped semicircular waveguide radiator

Fig. 5. Numerical calculation of S parameters

Fig. 6. Numerical calculation of patterns

Fig. 7. Power divider profile

Fig. 8. Electric field distribution of power divider

Fig. 9. Power divider S parameters

Fig. 10. Power divider transmission phases

Fig. 11. Electric field distribution of the antenna at a given time

Fig. 12. Antenna S parameters and gain curve vs. frequency

Fig. 13. Distribution of the antenna's maximum electric field
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Table 1. Optimized parameters (mm)
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Table 2. Comparison with separately designed technical routes

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