Article Details

Abstract

In order to solve the problem that traditional reflectarray antennas can only generate single-polarized waves, a double-layer dual-polarized reflectarray antenna is proposed based on the metasurface theory. A double-arrow-shaped metasurface unit cell is designed with a period of 0.5λ0 and a profile height of 0.15λ0. The element is selected to form a 21×21 array with a size of 315 mm×315 mm (10.5λ0×10.5λ0). In order to avoid the shielding effect of the feeder on the reflected wave, the reflectarray is excited by an offset-fed standard-gain horn antenna. The simulation results show that the dual-polarization reflectarray antenna designed in this paper generates high-gain pencil beams corresponding to the polarization in the frequency band of 9.5～10.5 GHz under the excitation of differently polarized spherical waves radiated by the horn. The gains of the generated X-polarized and Y-polarized waves at the center frequency of 10 GHz are 28.7 dBi and 27.0 dBi, and the aperture efficiencies are 54.0% and 36.0%, respectively.

Keywords

reflectarray antenna; metasurface; dual-polarization; offset-fed; high-gain

References

1. [1] Lu Huagang, Ma Chen, Fan Lian, etc Design of High Gain Antennas for Satellite Communication and GPS [J]. Digital Technology and Applications, 2021, 39 (6): 16-18
2. [2] Fu Shiqiang, Zhang Jiaqi, Li Chao, etc Design of Broadband High Gain Antenna Array for Frequency Modulated Continuous Wave Radar System [J]. Systems Engineering and Electronic Technology, 2018, 40 (10): 2237-2241
3. [3] Lee J N，Kim K S，Jung J，et al. Sub-Terahertz High-Gain Antenna for Long-Distance Transmission [J].The Journal of Korean Institute of Electromagnetic Engineering and Science，2021，32（1）：10-18.
4. [4] Yutian Design and analysis of folded plate cylindrical bidirectional deployable cylindrical parabolic antenna [D]. Hangzhou: Zhejiang University, 2014
5. [5] Manohar V，Rahmat-Samii Y. Understanding the Radiation Characteristics of Metal-Only, Low-Profile, Offset Stepped Parabolic Reflector Antennas: Simulation, Analysis, and Measurement [J].IEEE Transactions on Antennas and Propagation，2021，69（8）：5078-5083.
6. [6] Chen H D，Sim C Y D，Wu J Y，et al. Broadband High-Gain Microstrip Array Antennas for WiMAX Base Station [J].IEEE Transactions on Antennas and Propagation，2012，60（8）：3977-3980.
7. [7] Wang Xiaoli Research and Design of Ka Band Microstrip Planar Array Antenna [D]. Xi'an: Chang'an University, 2019
8. [8] Wang Zhibin, Wan Guobin, Zheng Wenquan Design and Application of a Double Layer Microstrip Reflective Array Antenna Unit [J]. Telemetry and Remote Control, 2013, 34 (2): 63-67, 71
9. [9] Deng R Y，Yang F，Xu S H，et al. A Low-Cost Metal-Only Reflectarray Using Modified Slot-Type Phoenix Element With 360° Phase Coverage [J].IEEE Transactions on Antennas & Propagation，2016，64（4）：1556-1560.
10. [10] Chen G T，Jiao Y C，Zhao G，et al. Design of Wideband High-Efficiency Circularly Polarized Folded Reflectarray Antenna [J].IEEE Transactions on Antennas and Propagation，2021，69（10）：6988-6993.
11. [11] Berry D，Malech R，Kennedy W. The Reflectarray antenna [J].IEEE Transactions on Antennas and Propagation，1963，11（6）：645-651.
12. [12] Malagisi C S. Microstrip Disc Element Reflect Array [C]//Electronics and Aerospace Systems Convention (EASCON'78)，1978：186-192.
13. [13] Zhu Xicheng, Zhang Panpan, Ye Ying, etc A millimeter wave high gain filtering antenna based on a folded planar reflector array antenna [J]. Research and Progress in Solid State Electronics, 2021, 41 (1): 41-46
14. [14] An W X，Xu S H，Yang F. A Metal-Only Reflectarray Antenna Using Slot-Type Elements [J].IEEE Antennas and Wireless Propagation Letters，2014，13：1553-1556.
15. [15] Xue Fei, Wang Hongjian, Dong Xingchao Design of a new single-layer dual frequency dual polarization microstrip reflector antenna [J]. Journal of Electronics and Information Technology, 2017, 39 (3): 697-702

About the authors

Li Qihua (1985-), male, Han ethnicity, from Xinyu, Jiangxi, engineer, PhD, research direction: simulation analysis of environmental impact of optoelectronic equipment.