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Single‐feed slotted‐patch antenna loaded with metasurface for CubeSat applications
Author(s) -
Ta Son Xuat,
Nguyen Van Cuong,
Nguyen Khac Kiem,
DaoNgoc Chien
Publication year - 2021
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22560
Subject(s) - cubesat , broadband , broadside , ground plane , optics , bandwidth (computing) , radiation , patch antenna , axial ratio , radiation pattern , microstrip antenna , antenna (radio) , physics , optoelectronics , materials science , circular polarization , electrical engineering , telecommunications , microstrip , engineering , satellite , astronomy
In this paper, a metasurface‐based antenna with broadband circularly polarized (CP) radiation is presented for S‐band CubeSat applications. It consists of a single‐feed slotted patch and a metasurface composed of 4 × 4 periodic metallic plates. The patch is sandwiched between the finite metasurface and ground plane to excite surface wave resonances for the broadband operation. The antenna is designed to achieve the geometry and characteristics, which are compatible with any CubeSat standard structure. The final prototype with an overall size of 0.64λ min × 0.64λ min × 0.026λ min (λ min is the free space wavelength referring to the lowest operational frequency) has been realized and tested. The experiments result in a |S 11 | < −10 dB bandwidth of 24.64% (1.85‐2.37 GHz), an axial ratio < 3‐dB bandwidth of 15.23% (1.94‐2.26 GHz), and a broadside realized gain of 5.6 to 6.7 dBic. Moreover, the antenna achieves a good broadside right‐hand CP radiation with symmetric pattern, high front‐to‐back ratio, and high radiation efficiency.