Vol 21, No 7 (2021) / Chen

SETI strategy with FAST fractality

Yi-Xuan Chen, Wen-Fei Liu, Zhi-Song Zhang, Tong-Jie Zhang

Abstract

We applied the Koch snowflake fractal antenna in planning calibration of the Five-hundredmeter Aperture Spherical radio Telescope (FAST), hypothesizing second-order fractal primary reflectors can optimize the orientated sensitivity of the telescope. Meanwhile, on the grounds of NASA Science Working Group Report in 1984, we reexamine the strategy of Search for Extraterrestrial Intelligence (SETI). A mathematical analysis of the radar equation will be performed in the first section, aiming to make it convenient to design a receiver system that can detect activities of an extraterrestrial civilization, according to the observable region of the narrowband. Taking advantage of the inherent potential of FAST, we simulate the theoretical detection of a Kardashev Type I civilization by a snowflake-selected reflecting area (Drake et al.).

Keywords


SETI — FAST — fractal antennae

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DOI: https://doi.org/10.1088/1674-4527/21/7/178

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