A Mechanical Reconfigurable Reflectarray Based on Magnetic Force Tuning

A Mechanical Reconfigurable Reflectarray Based on Magnetic Force Tuning

A new method of 1-bit mechanical reconfigurable reflectarray is proposed in this letter. Phase compensation is achieved by tuning the height between the frequency selective surface (FSS) and the ground plane in the element structure. The ground is connected to the coils, which pass currents to gener...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2024-02, Vol.23 (2), p.1-5
Hauptverfasser: Lu, Lixue, Liu, Changrong, Liu, Xueguan, Huang, Yong
Format: Artikel
Sprache:eng
Schlagworte:
Apertures
Circuit design
Coils
Frequency measurement
Frequency selective surfaces
Gain
Ground plane
Magnetic fields
Magnetic forces
mechanical reconfigurable
Permanent magnets
Prototypes
Reconfiguration
reflectarray
tunable height
Tuning
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Zusammenfassung:A new method of 1-bit mechanical reconfigurable reflectarray is proposed in this letter. Phase compensation is achieved by tuning the height between the frequency selective surface (FSS) and the ground plane in the element structure. The ground is connected to the coils, which pass currents to generate magnetic fields in different directions. By generating a repulsive or attractive force between the coils and the permanent magnets, different states are achieved. To verify the concept, a reflectarray composed of 10×10 elements operating at the C-band is designed and tested. The ground planes are moved freely by circuit control, which indicates the feasibility of this beam-scanning method.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2023.3329104