This work proposes an objective function to optimize an ultra wideband antenna for adjusting the bandwidth and coupling with other elements, based on the performance comparison of several objective functions from the literature. The optimal dimensions of a printed rectangular monopole antenna were obtained with the Particle Swarm Optimization method to compare such functions. In the results of the comparison, the linear functions had a mean value of S11 magnitude near the threshold, but they presented a smaller standard deviation than the rest of the functions. The logarithmic and cubic functions showed a mean value of S11 magnitude higher than the double of the threshold, but they had superior standard deviation values, which did not happen with the quadratic function. Hence, the proposed function is the mean of a logarithmic expression with the quadratic argument. With this function, a bandwidth adjustment of 130%, a mean S11 magnitude of -22.1 dB and a standard deviation equal to 6.7 dB were obtained on the resonant band for the designed antenna. In this way, the proposed function can be used to avoid interference with other wireless systems and to obtain a uniform coupling of the antenna.
Ahmed, F., Feng, Y., and Li, R., “A Multiband Multiple-input Multipleoutput Antenna System for Long Term Evolution and Wireless Local Area Networks Handsets”, International Journal of Engineering. Transactions B: Applications, Vol. 29, No. 8, (2016), 1087-1093. DOI: 10.5829/idosi.ije.2016.29.08b.08
Ghobadi, Ch., and Majidzadeh, M., “Multi Attribute Analysisofa Novel Compact UWB Antennawith Via-fed Elements for Dual Band Notch Function”, International Journal of Engineering. Transactions A: Basics, Vol. 27, No. 10, (2014), 1565-1572. DOI: 10.5829/idosi.ije.2014.27.10a.10
Sorrentino, R., and Bianchi, G., Microwave and RF engineering. Chichester: John Wiley & Sons Ltd, 2010.
Zich, R. E., Mussetta, M., Grimaccia, F., Albi, R., Carbonara, A., Antuono, P. D., Guffanti, T., and Zucchelli, E., “Comparison of different optimization techniques in antenna design – Part I,” in IEEE Antennas and Propagation Society International Symposium (APSURSI), Chicago, 7-8, (2012). DOI: 10.1109/APS.2012.6348756
Contreras, A., and Urdaneta, M., “Ultra wideband antennas for communications systems on microwave frequency bands: A review”, Revista Ingeniería UC, Vol. 25, No. 2, (2018), 134-148.
Balanis, C., Antenna theory. Analysis and design. New Jersey: John Wiley & Sons Ltd, 2016.
Li, Q., Dong, J., Yang, J., Zhuang, X., Yu, X., Hu, G., and Guo, Y. “Automated Topology Optimization of Internal Antenna Design Using Improved BPSO”, in International Applied Computational Electromagnetics Society Symposium (ACES), Suzhou, 4-5, (2017).
Jayasinghe, J. M., Anguera, J., Uduwawala, D. N., and Andújar, A., “Nonuniform Overlapping Method in Designing Microstrip Patch Antennas Using Genetic Algorithm Optimization”, International Journal of Antennas and Propagation, Vol. 2015, (2015), 1-8. DOI: 10.1155/2015/805820
Yu, C., Xu, T., and Liu, C., “Design of a Novel UWB Omnidirectional Antenna Using Particle Swarm Optimization”, International Journal of Antennas and Propagation, Vol. 2015, (2015), 1-8. DOI: 10.1155/2015/303195
Chen, Y., “A Two-Stage Optimization Technique for Multiband Antenna Design”, in 12th European Conference on Antennas and Propagation (EuCAP), London, 2-5, (2018). DOI: 10.1049/cp.2018.1112
Chiu, Y., and Chen, Y., “Multi-objective optimization for UWB antennas in impedance matching, gain, and fidelity factor,” in IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, Vancouver, 1940–1941, (2015). DOI: 10.1109/APS.2015.7305359
Koziel, S., and Bekasiewicz, A., “Fast design optimization of UWB antennas using response features,” in 21st International Conference on Microwave, Radar and Wireless Communications, Krakow, 4-7, (2016). DOI: 10.1109/MIKON.2016.7492066
Radiom, S., Aliakbarian, H., Vandenbosch, G., and Gielen, G., “Optimised small-size tapered monopole antenna for pulsed ultra-wideband applications designed by a genetic algorithm”, IETMicrowaves, Antennas & Propagation, Vol. 3, No. 4, (2009), 663-672. DOI: 10.1049/iet-map.2008.0195
Robinson, J., and Rahmat-Samii, Y., “Particle Swarm Optimization in Electromagnetics”, IEEE Transactions on Antennas and Propagation, Vol. 52, No. 2, (2004), 397-407. DOI: 10.1109/TAP.2004.823969
Nahvi, H., and Mohagheghian, I., “A Particle Swarm Optimization Algorithm for Mixed Variable Nonlinear Problems”, International Journal of Engineering. Transactions A: Basics, Vol. 24, No. 1, (2011), 65-78.
Parsopoulos, K. E., and Vrahatis, M. N., Particle Swarm Optimization and Intelligence. Advances and Applications. Hershey: IGI, 2010.
Clerc, M., Particle Swarm Optimization. London: ISTE, 2006.
Ray, K. P., “Design Aspects of Printed Monopole Antennas for Ultra-Wide Band Applications”, International Journal of Antennas and Propagation, Vol. 2008, (2008), 1-8. DOI: 10.1155/2008/713858
Contreras, A. (2021). Objective Functions for the Optimization of an Ultra Wideband Antenna. International Journal of Engineering, 34(7), 1743-1749. doi: 10.5829/ije.2021.34.07a.19
MLA
A. Contreras. "Objective Functions for the Optimization of an Ultra Wideband Antenna". International Journal of Engineering, 34, 7, 2021, 1743-1749. doi: 10.5829/ije.2021.34.07a.19
HARVARD
Contreras, A. (2021). 'Objective Functions for the Optimization of an Ultra Wideband Antenna', International Journal of Engineering, 34(7), pp. 1743-1749. doi: 10.5829/ije.2021.34.07a.19
VANCOUVER
Contreras, A. Objective Functions for the Optimization of an Ultra Wideband Antenna. International Journal of Engineering, 2021; 34(7): 1743-1749. doi: 10.5829/ije.2021.34.07a.19