Design of X-band high power wide tuning bandwidth electronical beam scanning reflectarray antenna based on varactor

Table 1. Parameters of the proposed element (mm)
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Table 1. Parameters of the proposed element (mm)
L₁ L₂ L₃ L₄ L₅ W₁ W₂ W₃ W₄ W₅
21.6 18.1 4.3 9 2.4 8.5 2.7 3.9 1 1

Table 2. Simulation results of antenna array radiation performance
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Table 2. Simulation results of antenna array radiation performance
frequency/GHz maximum beam scanning angle/(°) maximum gain/dBi maximum aperture efficiency/%
8.55 30 25.12 54.39
8.80 30 24.94 49.25
9.10 25 25.19 48.79
9.40 25 24.62 40.11
9.65 20 24.29 35.27

Table 3. Simulation results of maximum E-field

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Table 3. Simulation results of maximum E-field

frequency/GHz	E-field of reflectarray surface/(V·m⁻¹)	power capacity of reflectarray surface/MW	E-field of patch/(V·m⁻¹)	power capacity of patch/MW
8.55	1812	36.85	16090	6.18
8.80	1828	36.21	16565	5.83
9.10	1844	35.58	17006	5.53
9.40	1920	32.82	17153	5.44
9.65	2241	24.09	17870	5.01

Table 4. Results of this study compared with the results in the references

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Table 4. Results of this study compared with the results in the references

	maximum reflection loss/dB	phase coverage/(°)	maximum electric field /(V·m⁻¹)	relative tuning bandwidth/%
Ref. [19]	−3.1	318	6.14×10⁵	3
Ref. [21]	−2.2	304	5.84×10⁵	2.4
Ref. [25]	−0.66	270	1.54×10⁵	3
This paper	−0.51	360	1.62×10⁴	12

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Yang Zhang, Xiangqiang Li, Jianqiong Zhang, Qingfeng Wang, Xianfeng Tang. Design of X-band high power wide tuning bandwidth electronical beam scanning reflectarray antenna based on varactor[J]. High Power Laser and Particle Beams, 2025, 37(6): 063001

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