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Progress In Electromagnetics Research C
ISSN: 1937-8718
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A PLANAR WIDEBAND TWO-LEVEL SEQUENTIALLY ROTATED ARRAY ANTENNA FOR X-BAND CUBESAT

By S. X. Ta, N. K. Kiem, and D.-N. Chien

Full Article PDF (1,047 KB)

Abstract:
A planar wideband circularly-polarized (CP) antenna array is designed for an X-band CubeSat. The design is a two-level sequential phase architecture, consisting of a 4 × 4 element array composed of sequentially rotated of 2 × 2 subarrays. Each subarray consists of sequentially rotated 2 × 2 antennas using metasurface. These antenna elements are incorporated with a two-level sequentially rotated phase network in order to obtain wideband characteristic and high gain. The final prototype with a size of 100 mm × 100 mm × 2.032 mm yields a measured |S11| < -10 dB bandwidth of 50% (6-10 GHz) and measured axial ratio < 3-dB bandwidth of 40.7% (6.45-9.75 GHz). Additionally, the proposed design achieves a good broadside right-hand CP radiation with a peak gain of 17.0 dBic, 3-dB gain bandwidth of 20.4% (7.5-9.2 GHz), and radiation efficiency of > 82%. With these features, the proposed antenna can be compatible with any CubeSat standard structure, as well as other small satellites.

Citation:
S. X. Ta, N. K. Kiem, and D.-N. Chien, "A Planar Wideband Two-Level Sequentially Rotated Array Antenna for X-Band Cubesat," Progress In Electromagnetics Research C, Vol. 97, 57-67, 2019.
doi:10.2528/PIERC19092804

References:


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