Dual-Band Frequency Selective Surface-Backed Reflectarray for High-Speed Ka-Band Satellites
Source abstract
Abstract
A dual-band, dual-polarized frequency selective surface (FSS)-backed multilayer reflectarray antenna is designed for 5G high-speed satellites operating at Ka-band uplink and downlink frequencies (20/30 GHz). A reflectarray antenna system consists of two reflectarrays that are separated from each other by an FSS layer that behaves as a planar bandpass filter at Ka-band satellite uplink frequencies. Each reflectarray antenna is designed with dual-polarized unit cells. In order to achieve a uniform phase distribution across the reflectarray surface, physical dimensions and positions of the unit cells with a fixed periodicity are carefully chosen. The FSS conductor is etched to the bottom layer of the 30 GHz reflectarray substrate to save cost and weight. The reflectarray performance is analyzed by using CST Microwave Studio and array theory. A prototype is fabricated, and the results are experimentally verified. The gain of the reflectarray is measured as 21.13 dBi and 26.94 dBi at 20 and 30 GHz, respectively. A crosspol level of more than 35 dB is observed at both frequencies. The simulated and measured results show that the proposed reflectarray is suitable for high-speed Ka-band satellites.
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Research context
OpenAlex topics: Advanced Antenna and Metasurface Technologies · Antenna Design and Analysis · Satellite Communication Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical and Electronics Engineering, Aydın Adnan Menderes University, Aydın 09010, Türkiye
Department of Electrical and Electronics Engineering, Trakya University, Edirne 22030, Türkiye
Department of Electronics and Communication Engineering, Yildiz Technical University, Istanbul 34220, Türkiye
Funding
The Research Fund of Yildiz Technical University
References (30)
Show source-provided references
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