| Name: | viren mandaogane |
| Affiliation: | Savitribai Phule Pune University |
| Conference ID: | ASI2025_510 |
| Title: | LiBRA: A Novel Low Frequency Wideband Antenna for Radio Astronomy |
| Authors: | Mandaogane Viren 1, Bangar Sanket 2, Gaikwad Satyam 3, Ingale Prathamesh 2, Joshi Advait 4, Kulkarni Prabhanjan 5, Limaye Pranav 2, Sangavadekar Chinmay 6 , Chatterjee Sougata 7 , Hiray Manish 3 |
| Authors Affiliation: | 1 Mandaogane Viren Affiliation (Savitribai Phule Pune University, Pune - 411007, India)
2 Bangar Sanket, Mr. Ingale Prathamesh, Limaye Pranav Affiliation (Argelander Institute for Astronomy, University of Bonn, Bonn, Germany)
3 Gaikwad Satyam, Hiray Manish Affiliation (Fergusson College (Autonomous), Pune - 411004, India)
4 Joshi Advait Affiliation (Vellore Institute of Technology, Vellore - 632014, India)
5 Kulkarni Prabhanjan Affiliation (Ludwig-Maximilians-Universität, Munich, Germany)
6 Sangavadekar Chinmay Affiliation (DESY, Universität Hamburg, Hamburg, Germany)
7 Chatterjee Sougata Affiliation (National Centre for Radio Astrophysics, GMRT , Pune-411007, India)
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| Mode of Presentation: | Oral |
| Abstract Category: | Facilities, Technologies and Data science |
| Abstract: | We present the design and performance of the Linearly Polarised Broadband Radio Antenna (LiBRA), a novel low-frequency antenna developed for radio astronomical observations.
LiBRA combines multiple bowtie elements with varying flaring angles, achieving wideband performance from 80 to 320 MHz with a return loss below -10 dB. The design was simulated using the FEKO Student Edition, with an optimization algorithm implemented to ensure high radiation efficiency across the entire bandwidth. This innovative design was recognized among the top three in India in the SWAN Antenna Design Challenge 2020-2021.
A prototype of LiBRA was constructed and tested, demonstrating optimal performance in a band from 70 to 290 MHz. We summarize the reflection coefficient and radiation pattern results and present observations at low radio frequencies to validate its performance. Additionally, we discuss potential applications of LiBRA across various radio astronomical observations and outline directions for its future development.
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