An Ultrawideband Printed Monopole Antenna Analyzed with the Theory of Characteristic Modes

Authors

Keywords:

Monopole Antennas, Theory of Characteristic Modes, Ultrawideband antenna

Abstract

In this paper, the analysis of an UWB monopole antenna using the Theory of Characteristic Modes is presented. It starts from the modal study of an asymmetric dipole (structure 1), and then complements and compares it with a broadband monopole (structure 2), aiming to understand the operation principle of the proposed antenna. To achieve this, the electromagnetic properties of the structures are analyzed through the generation of its characteristic angles, modal radiation patterns, characteristic currents, and the power contribution percentage of each mode to the total radiated power, providing a vision on how the superposition of individual characteristic modes enables UWB operation. The prototype model is fabricated, and the measured results agree very well with the full-wave simulations results. The proposed prototype has a very low profile and operates in the frequency band from 2.8 GHz to exceed 10 GHz for a reflection coefficient S11 less than -10dB.

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Author Biographies

Carlos Ramiro Peñafiel-Ojeda, - G-RESEARCH, at Universidad Nacional de Chimborazo (UNACH), 060110, Riobamba, Ecuador - Instituto de Tecnologías y Ciencias Avanzadas (ITECA), Riobamba, Ecuador.

Carlos Ramiro Peñafiel-Ojeda was born in Cañar, Ecuador, on January 1989. He received the MS degree from the University of Calabria, Cosenza Italy, in 2014. He received the PhD degree in Telecommunications Engineering from the Universitat Politècnica de Valencia, Spain, in 2021.
During 2013, he participated in the "Messageri della Conoscenza" Project, being invited to participate in projects on drones at the Université de Technologie Compiègne, Compiegne, France. From 2013 to 2014, he was an Assistant Professor with the Universidad Politécnica Salesiana, Quito, Ecuador. In 2014, he became an Assistant Professor with the Universidad Nacional de Chimborazo, Riobamba, Ecuador. In 2018, he participated as a researcher in the Antennas and Electromagnetism Group at the Queen Mary University of London, London, UK.
His research interest include wearables antennas, metasurfaces, satellite communication devices, MIMO antennas, 5G and 6G technology, antennas for IoT applicactions.

Carlos Efrain Andrade, Universidad Técnica Estatal de Quevedo

Carlos Efrain Andrade received the B.S. degree in electronic engineering and the M.S. degree in telecommunication engineering, both from the University of Calabria, CS, Italy, in 2011 and 2015 respectively. From 2016 to 2020 he was with Facultad de Ingeniería en Ciencias Aplicadas, Universidad Técnica del Norte, Imbabura, Ecuador, as an Adjunct Professor. He joined the Facultad de Ciencias de la Ingeniería, Universidad Técnica Estatal de Quevedo, Quevedo, Ecuador, as an Adjunct Professor in 2021. His current research interests include printed antennas, antenna arrays, circuit-antenna co-designs and 5G/6G mobile networks.

Ricardo Baez-Egas, Universidad Técnica del Norte

Ricardo Baez-Egas was born in Ibarra, Ecuador, in 1995. He is currently pursuing the B.S. degree in electronic and communication networks engeneering with the Universidad Técnica del Norte, Imbabura, Ibarra, Ecuador. His main research interests include the analysis and design of antennas and sensor networks.

Vladimir Garcia-Santos, Universidad Estatal Península de Santa Elena

Vladimir García-Santos was born in Riobamba, Ecuador, in 1989. He received the B.S. degree in electronic engineering in 2011 and the M.S. degree in telecommunication engineering in 2015, both from the University of Calabria, CS, Italy. He is currently an Adjunct Professor with Universidad Estatal Península de Santa Elena, La Libertad, Ecuador. His main research interests include antennas for telecommunications applications, RF and microwave communication for 5G networks, RF and microwave sensors.

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Published

2022-02-09

How to Cite

Peñafiel-Ojeda, C. R., Andrade, C. E., Baez-Egas, R., & Garcia-Santos, V. (2022). An Ultrawideband Printed Monopole Antenna Analyzed with the Theory of Characteristic Modes. IEEE Latin America Transactions, 20(6), 948–954. Retrieved from https://latamt.ieeer9.org/index.php/transactions/article/view/5932

Issue

Vol. 20 No. 6 (2022): Ordinary Issue

Section

Articles