University of Oulu

Z. Siddiqui et al., "Dual-Polarized Filtering Antenna for mm-Wave 5G Base Station Antenna Array," 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021, pp. 1-4, doi: 10.23919/EuCAP51087.2021.9411318.

Dual-polarized filtering antenna for mm-Wave 5G base station antenna array

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Author: Siddiqui, Zeeshan1; Sonkki, Marko1; Rasilainen, Kimmo1;
Organizations: 1Centre for Wireless Communications, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.9 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2021
Publish Date: 2021-06-08


This paper presents a dual-polarized filtering antenna designed for a 5G mm-Wave base station phased array. The out-of-band radiation of a stacked patch antenna is suppressed by embedding filtering structures along with radiating patches and feed network. Four radiation nulls can be tuned by introducing a combination of open-loop and hairpin resonators at appropriate locations, and a bandpass filtering response can be achieved. The antenna design principles and simulated performance are discussed. The antenna operates in n257 and n258 mm-Wave bands, demonstrating -10 dB impedance bandwidth at 24.25—29.5 GHz. The realized gain remains stable between 5 and 6 dBi at all the operating frequencies. The isolation between the ports and cross-polar discrimination remain better than 20 dB in all the covered frequency range.

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ISBN: 978-88-31299-02-2
ISBN Print: 978-1-7281-8845-4
Article number: 9411318
DOI: 10.23919/EuCAP51087.2021.9411318
Host publication: 15th European Conference on Antennas and Propagation, EuCAP 2021. 22-26 March 2021, Dusseldorf, Germany
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: The work was funded by in part by Business Finland funded projects 5G-VIIMA and 5G-FORCE and was partly supported by the Academy of Finland project 6Genesis Flagship (grant no. 318927).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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