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- Title
Design of a 3-Bit Circularly Polarized Reconfigurable Reflectarray.
- Authors
Chen, Zhe; Huang, Chenlu; Yang, Xinmi; Yan, Xiaoming; Lin, Xianqi; Zhou, Yedi
- Abstract
In this paper, a 3-bit circularly polarized reconfigurable reflectarray is proposed. The array consists of 64 units in an 8 × 8 configuration, with each unit containing a circular metal patch loaded with phase-delay lines and eight PIN diodes. To independently control each unit, a corresponding DC control circuit was designed and tested with the array. In the bandwidth of 3.43–3.71 GHz, the circularly polarized reconfigurable reflectarray achieved a gain of 16 dB, an aperture efficiency of 27%, an axial ratio of ≤3 dB, an operating bandwidth of 8%, and a beam scanning range of ±60°. The circularly polarized reconfigurable reflectarray can also achieve a good dual-beam radiation performance after testing. The 3-bit circularly polarized reconfigurable reflectarray proposed in this paper offers several advantages, including low loss, high aperture efficiency, a wide beam scanning range, and excellent stability in wide-angle oblique incidence. It has potential applications in low-cost phased array, satellite communications, and deep space exploration.
- Subjects
PIN diodes; PHASED array antennas; SPACE exploration; CIRCULAR polarization; TELECOMMUNICATION satellites; BANDWIDTHS; RADARSAT satellites
- Publication
Electronics (2079-9292), 2024, Vol 13, Issue 10, p1886
- ISSN
2079-9292
- Publication type
Article
- DOI
10.3390/electronics13101886