This paper presents the design of a 2×2 Circularly Polarized (CP) patch array operating in the X-Band frequency range. The array incorporates a Sequentially Rotated (SR) phase feed and utilises a metasurface-based superstrate fed by a parasitic aperture-coupled feeding network. The superstrate comprises an 8×8 array of asymmetric square metallic patches etched on a dielectric substrate, positioned at half-wavelength from the CP array. The proposed design offers significant advantages, including a broad 3-dB Axial Ratio (AR) bandwidth of 39%, high-directivity of 15 dBi, and wide 3-dB directivity bandwidth of 42.5%. Moreover, this antenna design leverages the use of sequentially rotated slots in superstrate-based antennas, making it suitable for implementation over sparse areas.

Enhancing Radiation Characteristics of Antenna Arrays Over a Sparse Area / Kiyani, Arslan; Abbas, Syed Muzahir; Matekovits, Ladislau; Mahmoud, Abdelhady; Esselle, Karu P.. - ELETTRONICO. - (2024), pp. 311-312. (Intervento presentato al convegno IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI) tenutosi a Firenze (Italy) nel 14-19 July 2024) [10.1109/ap-s/inc-usnc-ursi52054.2024.10686104].

Enhancing Radiation Characteristics of Antenna Arrays Over a Sparse Area

Matekovits, Ladislau;
2024

Abstract

This paper presents the design of a 2×2 Circularly Polarized (CP) patch array operating in the X-Band frequency range. The array incorporates a Sequentially Rotated (SR) phase feed and utilises a metasurface-based superstrate fed by a parasitic aperture-coupled feeding network. The superstrate comprises an 8×8 array of asymmetric square metallic patches etched on a dielectric substrate, positioned at half-wavelength from the CP array. The proposed design offers significant advantages, including a broad 3-dB Axial Ratio (AR) bandwidth of 39%, high-directivity of 15 dBi, and wide 3-dB directivity bandwidth of 42.5%. Moreover, this antenna design leverages the use of sequentially rotated slots in superstrate-based antennas, making it suitable for implementation over sparse areas.
2024
979-8-3503-6990-8
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2994247