Side Lobe Reduction Using Tapering and Windowing in Antenna Radiation Pattern for Radar Systems Applications
| Authors | S. Santhanam1, , G. Thangavel2, M.R. Khanna3, A.V. Shanthi4, D. Murugesan5, M. Alagarsamy1 |
| Affiliations | 1Department of Electronics and Communication Engineering, K. Ramakrishnan College of Technology, Tiruchirappalli, Tamil Nadu, India 2Department of Electronics and Communication Engineering, University of Technology and Applied Sciences, Muscat, Sultanate of Oman 3Department of Information Technology, Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, India 4Department of Electronics and Communication Engineering, Prathyusha Engineering College, Tiruvallur – 602025, Tamil Nadu, India 5Department of Electronics and Communication Engineering, Kongunadu College of Engineering and Technology, Trichy - 621215, Tamil Nadu, India |
| Е-mail | suganthis.ece@krct.ac.in |
| Issue | Volume 17, Year 2025, Number 6 |
| Dates | Received 08 August 2025; revised manuscript received 12 December 2025; published online 19 December 2025 |
| Citation | S. Santhanam, [footnoteRef:], G. Thangavel, и др., J. Nano- Electron. Phys. 17 No 6, 06020 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(6).06020 |
| PACS Number(s) | 61.05.cp, 61.82.Fk, 73.43.Qt |
| Keywords | Array antenna, Far field pattern, Window method, Array tapering, Side lobe level, Radar applications. |
| Annotation | An array of antennas is a radiating structure made up of components and radiators. Every radiator in this set has a unique induction field. Because of their close proximity, all of the components are within each other's induction fields. As a result, the radiation pattern they created would consist of the vector sum of each one separately. In systems like radar, communications via satellite, and medical imaging, where undesired sidelobe signals can impair target recognition or image quality, sidelobe minimization is essential. In this paper, the normalized radiation pattern of eight elements in a uniform linear array having uniform spacing between each element of d /2 has been simulated along with sidelobe Level (SLL) reduction. The two methods studied are: Tapering using windowing by Hamming, Hanning, Blackman and Kaiser window with rectangular window as the reference. Array tapering using DFT with 20 numbers of elements, – 40 to 40 steering angle and Hamming window as the side-lobe control method. The array tapering and different windowing method has been studied with Hamming, Hanning Blackman and Kaiser window with rectangular window as reference. The gain pattern of 20 element array has been studied with – 40 to 40 steering angle and Hamming window as the side lobe control method. Radar systems, satellite communications, mobile communications networks, and the military and defense industries all use this SLL technology. |
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List of References English version of article |
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