A Dual-Circularly Polarized Antenna Array for Space Surveillance: From Design to Experimental Validation
Source abstract
Abstract
This paper presents the design, simulation, and experimental validation of a dual-Circularly Polarized (CP) array antenna to be used as single element for a bistatic radar system, aimed at detecting and tracking objects in Low Earth Orbit (LEO). The antenna operates at 412 MHz in reception mode and consists of an array of 19 slotted-patch radiating elements with a cavity-based metallic superstrate, designed to support dual circular polarization. These elements are arranged in a hexagonal configuration, enabling the array structure to achieve a maximum realized gain of 17 dBi and a Side Lobe Level (SLL) below −17 dB while maintaining high polarization purity. Two identical analog feeding networks enable the precise control of phase and amplitude, allowing the independent reception of Right-Hand and Left-Hand Circularly Polarized (RHCP and LHCP) signals. Full-wave simulations and experimental measurements confirm the high performance and robustness of the system, demonstrating its suitability for integration into large-scale Space Situational Awareness (SSA) sensor networks.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Antenna Design and Analysis · Advanced Antenna and Metasurface Technologies · Antenna Design and Optimization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Information Engineering, University of Pisa, 56122 Pisa, Italy
Free Space Srl, 56121 Pisa, Italy
RaSS Lab, Consorzio Nazionale Interuniversitario per le Telecomunicazioni, 56122 Pisa, Italy
Funding
SAURON (Sensors for Advanced Usage & Reconnaissance of Outerspace situation) EDIDP project
References (31)
Show source-provided references
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