BROADBAND DIPOLE ANTENNA WITH INTEGRATED BALUN FOR ENHANCED WIDEBAND AND STABLE COMMUNICATION PERFORMANCE
DOI:
https://doi.org/10.63456/aamc-2-2-51Keywords:
Broadband dipole antenna, Integrated balun, Wideband antenna, Impedance matching, Radiation efficiencyAbstract
Broadband wireless communication systems require antennas with wide impedance bandwidth, stable radiation characteristics, high efficiency, and compact structural integration to support reliable multi-band operation. This paper presents the design, optimization, fabrication, and experimental validation of a broadband dipole antenna incorporating an integrated balun to enhance impedance matching, radiation efficiency, and communication stability. The antenna geometry was developed using full-wave electromagnetic modelling and optimized through parametric analysis before prototype fabrication and experimental characterization using a calibrated vector network analyzer. The fabricated antenna achieved a measured operating frequency range of 1.18 - 4.43 GHz, corresponding to an impedance bandwidth of 3.25 GHz and a fractional bandwidth of 113.8%. A minimum reflection coefficient (S₁₁) of -36.8 dB and a VSWR of 1.11 were obtained, demonstrating excellent impedance matching throughout the operating band. The antenna further achieved a measured peak gain of 7.6 dBi, radiation efficiency of 94.5%, and stable radiation patterns across the entire frequency range. Comparative analysis with a conventional dipole antenna revealed bandwidth, gain, and radiation-efficiency improvements of 264.1%, 83.7%, and 13.7%, respectively. Furthermore, the maximum deviation between simulated and measured results remained below 6%, confirming the validity of the proposed electromagnetic model and fabrication process. The integrated balun effectively suppresses common-mode currents, improves current symmetry, and enhances overall antenna performance, demonstrating the proposed design as a robust solution for broadband and stable wireless communication applications.
References
[1] W. Hong et al., “The role of millimeter-wave technologies in 5G/6G wireless communications,” IEEE Journal of Microwaves, vol. 1, no. 1, pp. 101–122, 2021. https://doi.org/10.1109/JMW.2020.3035541
[2] W. Jiang, B. Han, M. A. Habibi, and H. D. Schotten, “The road towards 6G: A comprehensive survey,” IEEE Open Journal of the Communications Society, vol. 2, pp. 334–366, 2021. https://doi.org/10.1109/OJCOMS.2021.3057679
[3] C. De Lima et al., “Convergent communication, sensing and localization in 6G systems: An overview of technologies, opportunities and challenges,” IEEE Access, vol. 9, pp. 26902–26925, 2021. https://doi.org/10.1109/ACCESS.2021.3053486
[4] H. Sarieddeen, M. Alouini, and T. Y. Al-Naffouri, “An overview of signal processing techniques for terahertz communications,” Proceedings of the IEEE, vol. 109, no. 10, pp. 1628–1665, 2021. https://doi.org/10.1109/JPROC.2021.3100811
[5] S. F. Ahmed et al., “Toward a secure 5G-enabled Internet of Things: A survey on requirements, privacy, security, challenges, and opportunities,” IEEE Access, vol. 12, pp. 13125–13145, 2024. https://doi.org/10.1109/ACCESS.2024.3352508
[6] S. I. Siam et al., “Artificial Intelligence of Things: A survey,” ACM Transactions on Sensor Networks, 2024. https://doi.org/10.1145/3690639
[7] M. Alibakhshikenari et al., “A comprehensive survey on antennas on-chip based on metamaterial, metasurface, and substrate integrated waveguide principles for millimeter-waves and terahertz integrated circuits and systems,” IEEE Access, vol. 10, pp. 3668–3692, 2022. https://doi.org/10.1109/ACCESS.2021.3140156
[8] A. Alex-Amor, Á. Palomares-Caballero, and C. Molero, “3-D metamaterials: Trends on applied designs, computational methods and fabrication techniques,” Electronics, vol. 11, no. 3, Art. no. 410, 2022. https://doi.org/10.3390/electronics11030410
[9] F. Azam, S. I. H. Shah, S. Bashir, and S. Koziel, “Review of recent advancement on nature/bio-inspired antenna designs,” IEEE Access, vol. 12, pp. 37493–37512, 2024. https://doi.org/10.1109/ACCESS.2024.3372864
[10] Y. Cheng and Y. Dong, “Dual-broadband dual-polarized shared-aperture magnetoelectric dipole antenna for 5G applications,” IEEE Transactions on Antennas and Propagation, vol. 69, no. 11, pp. 7918–7923, 2021. https://doi.org/10.1109/TAP.2021.3083744
[11] L. Yang, R. Gomez-Garcia, M. Fan, and R. Zhang, “Multilayered input-reflectionless quasi-elliptic-type wideband bandpass filtering devices on diplexer-based structures,” IEEE Transactions on Microwave Theory and Techniques, vol. 70, no. 1, pp. 122–138, 2022. https://doi.org/10.1109/TMTT.2021.3121013
[12] K. Wang, “Advancing 5G coverage: Novel methods for metasurface characterization and leaky-wave antenna reconfigurability,” Ph.D. dissertation, 2023. https://doi.org/10.22215/etd/2023-15712
[13] L. Chang, L.-L. Chen, J. Zhang, and Z. Chen, “A compact wideband dipole antenna with wide beamwidth,” IEEE Antennas and Wireless Propagation Letters, 2021. https://doi.org/10.1109/LAWP.2021.3094318
[14] J. Cho, T. H. Lim, Y. Kim, and H. Choo, “Design of a wideband printed patch dipole antenna with a balanced on-board feeding network,” Journal of Electromagnetic Engineering and Science, vol. 22, no. 6, pp. 631–637, 2022. https://doi.org/10.26866/jees.2022.6.r.132
[15] M. H. Teimouri, C. Ghobadi, J. Nourinia, K. Kaboutari, M. Shokri, and B. S. Virdee, “Broadband printed dipole antenna with integrated balun and tuning element for DTV application,” AEU—International Journal of Electronics and Communications, vol. 148, Art. no. 154161, 2022. https://doi.org/10.1016/j.aeue.2022.154161
[16] S. Joof, S. Doğu, F. T. Çelik, and K. Karaçuha, “A wideband dipole antenna design for through-the-wall imaging on security applications,” in Proc. 17th European Conference on Antennas and Propagation (EuCAP), Florence, Italy, 2023, pp. 1–5. https://doi.org/10.23919/EuCAP57121.2023.10133780
[17] F. P. Chietera, “Additively manufactured antennas and electromagnetic devices,” Hardware, vol. 2, no. 2, pp. 85–105, 2024. https://doi.org/10.3390/hardware2020005
[18] T. Wang et al., “High-performance and stable plasmonic-functionalized formamidinium-based quasi-2D perovskite photodetector for potential application in optical communication,” Advanced Functional Materials, vol. 32, no. 48, 2022. https://doi.org/10.1002/adfm.202208694
[19] S. Park and Y. Kim, “A metaverse: Taxonomy, components, applications, and open challenges,” IEEE Access, vol. 10, pp. 4209–4251, 2022. https://doi.org/10.1109/ACCESS.2021.3140175
[20] R. Bansal, “Wrath of grapes redux [Microwave Surfing],” IEEE Microwave Magazine, vol. 23, no. 3, pp. 10–86, 2022. https://doi.org/10.1109/MMM.2021.3131836
[21] O. P. Ayeoribe, “Optimizing LDPC and BCH forward error correction for improved reliability and reduced bit errors in low-SNR DVB-T2 transmission environments,” International Journal of Advanced Nano Computing and Analytics, vol. 4, no. 2, pp. 102–113, 2025. https://doi.org/10.61797/ijanca.v4i2.629
[22] O. P. Ayeoribe, “Future of FM broadcasting in the digital communication era: Addressing coverage, quality, and spectrum efficiency challenges globally,” Journal of Smart Computing and Quantum Technologies, vol. 2, no. 1, pp. 8–21, 2026. https://doi.org/10.63456/jscqt-2-1-88
[23] O. Peter-Ayeoribe, O. Akinsanmi, A. Esan, A. E. Ayeoribe, B. Omodunbi, and I. V. Ayeoribe, “Design and implementation of a DVB-T2 transmission system using Software Defined Radio (SDR),” FUOYE Journal of Engineering and Technology, vol. 10, no. 3, pp. 507–513, 2026. https://doi.org/10.4314/fuoyejet.v10i3.18
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