VEMULA NAGARAJA WORKING HAS PHYSICAL DESIGN ENGINEEER
EDUCATION
M.TECH
RESEARCH, TEACHING, or OTHER INTERESTS
Electrical and Electronic Engineering, Electrical and Electronic Engineering, Engineering, Electronic, Optical and Magnetic Materials
6
Scopus Publications
13
Scholar Citations
1
Scholar h-index
1
Scholar i10-index
Scopus Publications
Design Tapered Slot Antenna with AVOA Algorithm to Enhance Gain of the Patch Antenna V. Nagaraja, M. Venkata Lokeswara Rao, T. Venkata Naga Sai Kumar, R. Vinod Kumar Proceedings of 3rd International Conference on Augmented Intelligence and Sustainable Systems Icaiss 2025, 2025 The conceptualization and evolution of Tapered Slot Antenna (TSA), incorporating U-shaped edges, and semi-circular parasitic patches, utilizing the African Vulture Optimizing Algorithm (AVOA). The aim is to enhance the antenna's gain up to 14.73 dBi for next generation 5G/6G wireless communication. This innovative approach optimizes critical parameters such as gain and bandwidth while maintaining a compact design. Simulations using ANSYS HFSS demonstrate stable performance, with gains ranging from 10.53 dBi to 14.50 dBi and 4.82 dBi to 15.05 dBi amid the variation in frequency range of of 41.72 GHz to 46.24GHz and another from 64.95 GHz to 68.20 GHz. The integration of semicircular parasitic patches and U-shaped edges significantly improves impedance matching and directional radiation patterns. Modelled on Roger's RT/Duroid 5880 base material with dimensions of 31 mm by 25.35 mm by 0.5 mm, the proposed antenna effectively addresses the challenges of mm Wave communication by improving efficiency and gain. This research highlights the potential of AVOA in optimizing frequency-reconfigurable microstrip patch antennas, making it a promising solution for advanced 5G wireless systems.
Design and Optimization of a Geometric Slot-Loaded Super Wideband Antenna for Next-Generation Wireless Communication G. Mahammedrafi, V Nagaraja, Goddumarri Mahitha, Shaik Karishma, Shaik Gousia Proceedings of 3rd International Conference on Augmented Intelligence and Sustainable Systems Icaiss 2025, 2025 The design and analysis of an analog circuit model for a geometric slot-loaded super wideband (SWB) antenna, covering a frequency range of 3-18GHz frequency range. The recommended antenna utilizes an FR4-epoxy substrate to ensure cost-effectiveness and manufacturability while achieving a remarkable bandwidth of 12.77 GHz at the -10 dB return loss level. A Perfectly Matched Layer (PML) boundary condition is incorporated within Group 2 optimization techniques to enhance radiation efficiency and suppress unwanted reflections. The antenna delivers a peak gain of 8.51 dBi, making it suitable for applications requiring high-gain and stable performance across a broad spectrum. The equivalent analog circuit model is developed to facilitate impedance analysis and optimize the antenna response. Comprehensive electromagnetic simulations validate the antenna’s performance, confirming its suitability for radar, wireless communication, and broadband sensing applications. The results demonstrate consistent impedance matching, stable radiation patterns, and improved gain characteristics. The proposed design offers an efficient and reliable solution for next-generation wideband communication systems. This research enhances the technology of ultra-wideband (UWB) antenna technology by integrating circuit modeling techniques with innovative slot-loading mechanisms, ensuring optimized performance across diverse operational environments.
Designing Ultra-Wide-Band MIMO Antenna between 25 to 55 GHz for 5G Applications V.Nagaraja, H.Shree Kumar, D.Subramanyam, B.Sudhanvika, L.Subbareddy Proceedings of 3rd International Conference on Augmented Intelligence and Sustainable Systems Icaiss 2025, 2025 This research introduces a compact and efficient multiple-input multiple-output (MIMO) antenna designed for millimeter-wave (mmWave) 5G applications. The proposed design operates over an ultra-wideband (UWB) frequency range of 25–55 GHz, leveraging Defective Ground Structure (DGS) technology for enhanced performance. The antenna's small size (20 mm × 20 mm × 0.5 mm) facilitates integration into a wide range of communication devices. The orthogonal arrangement of the antenna elements minimizes mutual coupling, thereby improving diversity characteristics. Performance metrics, such as S-parameters and diversity parameters, demonstrate excellent agreement between experimental and simulated results, validating the antenna's suitability for 5G mmWave applications. Its low mutual coupling, high isolation, and broad bandwidth establish this design as an ideal candidate for next- generation communication systems.
Artificial intelligence-driven automated mutual coupling reduction topology for frequency reconfigurable antenna arrays Shikha Khullar, Manju Dhillon, Mohammed Al-Farouni, V Nagaraja, Rathish Manivannan, Manoranjan Kumar Sinha 3rd International Conference on Advances in Computing Communication and Materials Icaccm 2024, 2024 Reconfigurable antennas alter polarization, operating frequency, or far-field pattern to accommodate changing system characteristics. For a frequency, a Reconfigurable Antenna Array (RAA), an autonomous Artificial Intelligence driven design approach for reduction of mutual coupling, and a new isolator are presented. In addition, the optimization technique for a realistic RAA commonly has several switching and a high real-time requirement. An Adaptive Unit-based Genetic Algorithm (AUGA) is utilized in this research to address the performance issue of the RAA. The reconfigurable array element may operate in the 2.5 GHz ISM band or the 3.4 GHz WiMAX channel. The suggested isolator reduces the mutual coupling in upper and lower bands by 8 and 7 dB correspondingly. The reconfigurable array was developed and tested, and measurements accord well with models, proving the concept's viability. Although this communication uses a specific antenna, the proposed Artificial Intelligence-driven design technique is general and may simply be applied to various array topologies.
RECENT SCHOLAR PUBLICATIONS
Advanced Bowtie-Structured Microstrip Patch Antenna for Next-Generation 6G Wireless System V Nagaraja, KV Kalshetti, SS Banu, TS Shreya, B Siddartha 2026 9th International Conference on Intelligent Computing and Control … , 2026 2026.0
CNN-Driven Performance Modeling of a Wideband Terahertz Microstrip Antenna for 6G Wireless Systems B Subbarayudu, V Nagaraja, E Prathyusha, SS Kumar, SM Basha 2026 9th International Conference on Intelligent Computing and Control … , 2026 2026.0
Design and RF Characterization of a 5.5 GHz Low Noise Amplifier for Sub-6 GHz WLAN Systems R Arivarasu, V Nagaraja 2026 9th International Conference on Intelligent Computing and Control … , 2026 2026.0
Rectangular Tapered Slot-Loaded Patch Array Antenna with 2D Surface Function for Enhanced Bandwidth and Efficiency in Applications HS Kumar, V Nagaraja, E Khaleel, BS Kumar, KS Lakshmi 2025 10th International Conference on Communication and Electronics Systems … , 2025 2025.0
Design and Optimization of a Geometric Slot-Loaded Super Wideband Antenna for Next-Generation Wireless Communication G Mahammedrafi, V Nagaraja, G Mahitha, S Karishma, S Gousia 2025 Third International Conference on Augmented Intelligence and … , 2025 2025.0 Citations: 1
Designing Ultra-Wide-Band MIMO Antenna between 25 to 55 GHz for 5G Applications V Nagaraja, HS Kumar, D Subramanyam, B Sudhanvika, L Subbareddy 2025 Third International Conference on Augmented Intelligence and … , 2025 2025.0 Citations: 1
Design Tapered Slot Antenna with AVOA Algorithm to enhance gain of the Patch Antenna V Nagaraja, MVL Rao, TVNS Kumar, RV Kumar IEEE 11 (5), 1129-1134 , 2025 2025.0 Citations: 1
Artificial intelligence-driven automated mutual coupling reduction topology for frequency reconfigurable antenna arrays S Khullar, M Dhillon, M Al-Farouni, V Nagaraja, R Manivannan, MK Sinha 2024 International Conference on Advances in Computing, Communication and … , 2024 2024.0
Plasmon enhanced fluorescence from meticulously positioned gold nanoparticles, deposited by ultra sonic spray coating on organic light emitting diodes RSN Kumar, M Eerdekens, Y de Coene, VS Nagaraja, S Ahadzadeh, ... Nanoscale Advances 5 (6), 1750-1759 , 2023 2023.0 Citations: 10
Development of THz rectangular microstrip patch antenna for high-speed wireless applications V Nagaraja, B Lekhya, S Yaswanth, E Vasundhara Innovations in Computer Vision, Communication Systems, and Computational … , 0
MOST CITED SCHOLAR PUBLICATIONS
Plasmon enhanced fluorescence from meticulously positioned gold nanoparticles, deposited by ultra sonic spray coating on organic light emitting diodes RSN Kumar, M Eerdekens, Y de Coene, VS Nagaraja, S Ahadzadeh, ... Nanoscale Advances 5 (6), 1750-1759 , 2023 2023.0 Citations: 10
Design and Optimization of a Geometric Slot-Loaded Super Wideband Antenna for Next-Generation Wireless Communication G Mahammedrafi, V Nagaraja, G Mahitha, S Karishma, S Gousia 2025 Third International Conference on Augmented Intelligence and … , 2025 2025.0 Citations: 1
Designing Ultra-Wide-Band MIMO Antenna between 25 to 55 GHz for 5G Applications V Nagaraja, HS Kumar, D Subramanyam, B Sudhanvika, L Subbareddy 2025 Third International Conference on Augmented Intelligence and … , 2025 2025.0 Citations: 1
Design Tapered Slot Antenna with AVOA Algorithm to enhance gain of the Patch Antenna V Nagaraja, MVL Rao, TVNS Kumar, RV Kumar IEEE 11 (5), 1129-1134 , 2025 2025.0 Citations: 1
Advanced Bowtie-Structured Microstrip Patch Antenna for Next-Generation 6G Wireless System V Nagaraja, KV Kalshetti, SS Banu, TS Shreya, B Siddartha 2026 9th International Conference on Intelligent Computing and Control … , 2026 2026.0
CNN-Driven Performance Modeling of a Wideband Terahertz Microstrip Antenna for 6G Wireless Systems B Subbarayudu, V Nagaraja, E Prathyusha, SS Kumar, SM Basha 2026 9th International Conference on Intelligent Computing and Control … , 2026 2026.0
Design and RF Characterization of a 5.5 GHz Low Noise Amplifier for Sub-6 GHz WLAN Systems R Arivarasu, V Nagaraja 2026 9th International Conference on Intelligent Computing and Control … , 2026 2026.0
Rectangular Tapered Slot-Loaded Patch Array Antenna with 2D Surface Function for Enhanced Bandwidth and Efficiency in Applications HS Kumar, V Nagaraja, E Khaleel, BS Kumar, KS Lakshmi 2025 10th International Conference on Communication and Electronics Systems … , 2025 2025.0
Artificial intelligence-driven automated mutual coupling reduction topology for frequency reconfigurable antenna arrays S Khullar, M Dhillon, M Al-Farouni, V Nagaraja, R Manivannan, MK Sinha 2024 International Conference on Advances in Computing, Communication and … , 2024 2024.0
Development of THz rectangular microstrip patch antenna for high-speed wireless applications V Nagaraja, B Lekhya, S Yaswanth, E Vasundhara Innovations in Computer Vision, Communication Systems, and Computational … , 0
