University of Oulu

E. Antonino-Daviu, M. Sonkki, M. Ferrando-Bataller and E. Salonen, "UWB differentially-fed circular monopole antenna with stable radiation pattern," 2017 11th European Conference on Antennas and Propagation (EUCAP), Paris, 2017, pp. 2663-2667. doi: 10.23919/EuCAP.2017.7928394

UWB differentially-fed circular monopole antenna with stable radiation pattern

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Author: Antonino-Daviu, Eva1; Sonkki, Marko2; Ferrando-Bataller, Miguel1;
Organizations: 1Institute of Telecommunications and Multimedia Applications (iTEAM), Edificio 8G, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
2Centre for Wireless Communications (CWC), P.O. Box 4500, 90014 University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 4 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2017
Publish Date: 2018-07-04


A small UWB circular monopole antenna with a differential feed is presented in this paper, as a solution to increase the stability of the radiation pattern of a single-fed circular monopole antenna. A detailed characteristic modes analysis is presented in order to support the selection of the feeding mechanism. Simulated active-S parameter is shown for the proposed antenna, showing a good matching for the UWB frequency range. Normalized surface current distributions are presented, and 3D radiation patterns are compared to a reference monopole. The antenna structure shows more stable and omnidirectional radiation patterns over the studied frequency range compared to a same sized single-fed reference monopole.

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ISBN: 978-8-8907-0187-0
ISBN Print: 978-1-5090-3742-1
Pages: 2663 - 2667
Article number: 570316445
DOI: 10.23919/EuCAP.2017.7928394
Host publication: 2017 11th European Conference on Antennas and Propagation (EUCAP)
Conference: European Conference on Antennas and Propagation
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work has been supported by Academy of Finland project Reconfigurable Antennas and Over-the-air Tests for Cognitive Radios (RAOTA), and by the Finnish Funding Agency for Innovation (Tekes), Microsoft/Oulu, Anite/Oulu, and ETS-Lindgren by project Advanced test methods of MIMO terminals in realistic usage environments (MIMOTA 2). Also by the Spanish Ministry Economy and Competitiveness under the project TEC2016-78028-C3-3-P.
Academy of Finland Grant Number: 270735
Detailed Information: 270735 (Academy of Finland Funding decision)
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