A Solar-Powered Mobile Phased Array for Radio Astronomy Observations at Low Frequencies

In this paper, we present initial results from test observations conducted with a compact, broadband (meter–decameter range) mobile antenna array designed for autonomous operation in field conditions. Powered exclusively by solar energy and independent of stationary infrastructure, the system is rapidly deployable and well-suited for remote low-frequency ([Formula: see text] [Formula: see text]MHz) radio astronomy. Solar radio bursts were used as illustrative examples to demonstrate system functionality and sensitivity under natural conditions. In addition to solar activity, the antenna array is capable of detecting other astrophysical sources such as Jupiter and Cas A, confirming its broader applicability. Key technical characteristics of the antenna and its integrated solar power station are also described.