University of Oulu

Le, T. K. N., Schwartau, F., Paul, S., Phan, D. T., Soh, P. J., & Schoebel, J. (2023). Independently tunable triband patch antenna with band-notched characteristics for x-band applications. International Journal of Antennas and Propagation, 2023, 1–12.

Independently tunable triband patch antenna with band-notched characteristics for X-band applications

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Author: Le, Thi Kieu Nga1,2; Schwartau, Fabian1; Paul, Sebastian1;
Organizations: 1Institut für Hochfrequenztechnik, Technische Universität Braunschweig, Braunschweig 38106, Germany
2School of Engineering and Technology, Vinh University, Vinh 460000, Vietnam
3Centre for Wireless Communications-Radio Technologies, University of Oulu, Oulu 90014, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 5.2 MB)
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Language: English
Published: Hindawi, 2023
Publish Date: 2023-06-19


This paper presents a triband antenna with a simple design for X-band applications. The proposed antenna is designed based on a patch with a truncated corner slot and complementary split-ring resonators in the ground plane. In this way, the antenna exhibits three operating bands and its resonant frequencies can be controlled independently by changing dimensions of the slot in the patch and the resonator structures in the ground plane. In addition, due to the antiresonant behavior of the complementary split-ring resonator structures, the antenna exhibits a notch-band characteristic at 10.7 GHz. A parametric study is performed to provide a detailed understanding of the independent resonance tuning behavior of the antenna. Both simulated and measured results of the proposed antenna are presented, which are in good agreement. The proposed antenna shows three operating bands in the X-band including (with absolute and relative bandwidths) 9.4–9.7 GHz (300 MHz, 3.14%), 10.3–10.6 GHz (300 MHz, 2.86%), and 11.05–11.32 GHz (297 MHz, 2.66%). In addition to that, a notched band of 10.6–11.05 GHz is introduced to exclude operation in the frequency bands of radiometric observation systems (10.6–10.7 GHz). To the best of our knowledge, this work is unique in its combination of independent tuning of three frequency bands of operation with single-layer implementation in the X-band. Such a structure provides additional degrees of freedom to the antenna design, customizing operation in the required bands while avoiding operation in other bands.

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Series: International journal of antennas and propagation
ISSN: 1687-5869
ISSN-E: 1687-5877
ISSN-L: 1687-5869
Volume: 2023
Article number: 1395473
DOI: 10.1155/2023/1395473
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This study was funded by the Ministry of Education and Training of the Socialist Republic of Vietnam; Institut für Hochfrequenztechnik, Technische Universität Braunschweig, 38106 Braunschweig, Germany; Centre for Wireless Communications-Radio Technologies, University of Oulu, FI-90014 Oulu, Finland. Open Access funding enabled and organized by Projekt DEAL.
Copyright information: © 2023 Ti Kieu Nga Le et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.