Ghailan Daffasya, Kevin Kennedy Tampubolon, Afdhal Tsabit Aqdamullah, Peberlin Parulian Sitompul, Timbul Manik, Iwan Kustiawan
This paper explores the integration of LPDA antenna within Callisto spectrometer system. Log-periodic Dipole Array (LPDA) consist of a series of dipole element that varies in length and diameter, each dipole element in the array is progressively shorter and spaced at varying intervals, according to a specific logarithmic progression. Unlike traditional antennas that are optimized for narrow frequency ranges, the LPDA is engineered to maintain a relatively uniform gain and directional pattern across a wide spectrum of frequencies. This makes it highly effective for applications that require the monitoring signals over a broad frequency range, making them ideal for capturing the broad range of solar radio burst. LPDA being a relatively low cost-effective antenna make it viable for small scale solar radio burst observation. We assess how variations in LPDA design parameters affect sensitivity, frequency response, and signal clarity. The CALLISTO (Compound Astronomical Low Frequency Instrument for Spectroscopy and Transportable Observatory) system is designed to observe solar radio burst at the spectrum of 45-870MHZ, providing detailed data on solar phenomenon. Callisto is engineered to be a low-cost observatory, makes it suitable to integrate with LPDA antenna. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2026.
Electrical Engineering Department, Faculty of Technology and Vocational Education, Universitas Pendidikan Indonesia, Bandung, 40154, Indonesia; Research Center for Space, National Research and Innovation Agency (BRIN), Bandung, 40135, Indonesia
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