Design of Ultra-Wideband Antipodal Vivaldi Antenna with Improving Impedance Matching using Elliptical Stub for GPR Applications
This paper presents the design of an Antipodal Vivaldi Antenna (AVA) including open elliptical stubs on either side to improve impedance matching at lower frequencies. The stubs further serve as reflectors at 300 MHz, significantly enhancing the antenna gain across the specified frequency ranges. The Antipodal Vivaldi Antenna, measuring 552 × 700 × 1.6 mm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup>, is analyzed and evaluated to determine its characteristics. It possesses ultra-wideband characteristics, providing it suitable for signal exploration systems, and operates effectively throughout the 298–3000 MHz frequency range, which corresponds to the frequencies utilized by GPR technology. The suggested antenna demonstrates directed radiation patterns at all operational frequencies, achieving an average gain of 8.5 dBi.
Authors
- Paitoon Rakluea (ORCID: https://orcid.org/0000-0001-6768-7845)
- Nonchanutt Chudpooti (ORCID: https://orcid.org/0000-0002-7239-9968)
- Norakamon Wongsin (ORCID: https://orcid.org/0000-0003-1357-1630)
- Patchadaporn Sangpet (ORCID: https://orcid.org/0000-0002-6410-9502)
- Wanchalerm Chanwattanapong (ORCID: https://orcid.org/0009-0003-1851-6777)
- Thinnawat Jangjing (ORCID: https://orcid.org/0009-0004-2397-3777)
- Chatree Mahatthanajatuphat (ORCID: https://orcid.org/0000-0002-9482-4750)
- Chayapol Sangmook
Institutions
- Rajamangala University of Technology (TH)
- King Mongkut's University of Technology North Bangkok (TH)
Publication Details
- Published
- 2025-03-05
- DOI
- https://doi.org/10.1109/ieecon64081.2025.10987673
- Citations
- 3
- Primary Topic
- Antenna Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 14.98
Funders
- King Mongkut's University of Technology North Bangkok