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Decoupling of Dual-Band Dual-Polarized Base Station Array Antenna

Liu, Xuekang, Zhang, Haiwei, Gao, Steven, Sanz-Izquierdo, Benito (2022) Decoupling of Dual-Band Dual-Polarized Base Station Array Antenna. In: 2022 Kleinheubach Conference. . IEEE ISBN 978-3-948571-07-8. (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:103050)

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Language: English

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DOI for this version: 10.22024/UniKent/01.02.103050.3409050
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Dual-band dual-polarized arrays (DBDPA) using interleaved configuration have drawn industry attention as a promising way to improve channel capacity in a package that has a minimum width. By integrating high-performance filtering elements, a novel interleaved DBDPA for base station use is presented in this paper. For the first time, a radiation null is introduced into the low-band (LB) antenna using the intrinsic suppression mode of folded dipole. Then, to enhance the gain-suppression level in out-of-band to 16 dB, four rectangular loops are introduced under the radiator. To achieve high selectivity for high-band (HB) antenna, a meander line loop is introduced and analyzed for the first time in this paper. Simulations indicate that the presented HB antenna achieves 17 dB of out-of-band rejection and 243 dB/GHz of roll-off rate. The combined use of these two filtering elements finally enables the realization of a DBDPA with low mutual coupling and low cross-band scattering. According to the measurements, this antenna covers two wide frequency ranges of 2.26- 2.73 GHz and 2.98- 4.3 GHz with a 25 dB cross-band isolation level.

Item Type: Conference or workshop item (Proceeding)
Additional information: For the purpose of open access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission.
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK5101 Telecommunications
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Funders: Engineering and Physical Sciences Research Council (
Huawei Technologies (United Kingdom) (
Depositing User: Xuekang Liu
Date Deposited: 28 Sep 2023 10:46 UTC
Last Modified: 16 Feb 2024 15:26 UTC
Resource URI: (The current URI for this page, for reference purposes)

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