A Quad-Spiral Element with a Reconfigurable Direction of Radiation for Wide-Angle Steerable Vector Phased Array
The conventional phased array suffers a large gain reduction during wide-angle beam steering and poses a significant challenge for Space Solar Power Systems (SPSS). This paper introduces a novel approach to address this issue by using the Vector Phased Array (VP A) concept, which aims to enhance beam collection efficiency (BCE) and reduce gain loss during wide-angle beam steering. A passive beam-steering Quad-Spiral antenna element was designed, demonstrating low side-lobe levels (SLLs) and a gain degradation of only 2.9 dB at steering angles up to 56°, with full 360° phi coverage. The design also exhibited low mutual coupling performance and stable radiation characteristics across multiple steering modes, making it an ideal candidate for VP A-based SPSS applications.
Authors
- Chao Shu (ORCID: https://orcid.org/0000-0002-4239-5990)
- Anthony K. Brown (ORCID: https://orcid.org/0000-0002-7033-7544)
- Brian Collins (ORCID: https://orcid.org/0000-0003-4312-038X)
- Shohreh Nourinovin (ORCID: https://orcid.org/0000-0001-7650-1192)
- Xiaodong Chen (ORCID: https://orcid.org/0000-0002-3089-2260)
- Jin Zhang (ORCID: https://orcid.org/0000-0003-3731-8859)
- Wen Dang (ORCID: https://orcid.org/0000-0001-7210-3525)
- Noaman Nasser
Institutions
- Queen Mary University of London (GB)
Publication Details
- Published
- 2025-03-30
- DOI
- https://doi.org/10.23919/eucap63536.2025.10999561
- Primary Topic
- Antenna Design and Optimization
- Type
- article
- Field-Weighted Citation Impact
- 0.00