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Integrated Dual-Band Filtering/Duplexing Antennas

Mao, Chun-Xu, Gao, Steven, Wang, Yi, Liu, Ying, Yang, Xue-Xia, Cheng, Zhiqun, Geng, Youlin (2018) Integrated Dual-Band Filtering/Duplexing Antennas. IEEE Access, 6 . ISSN 2169-3536. (doi:10.1109/ACCESS.2018.2805224) (KAR id:66227)

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Abstract

In this paper, the state-of-the-art integrated filtering antennas with dual-band operation are first reviewed. Then, two designs of dual-band microstrip filtering antennas with a low frequency-ratio are presented. The 1st design is a dual-band dual-polarization (DBDP) antenna with a frequency ratio of 1.2 on a single patch, by employing the coupled resonator technique. Two bands at each polarization are achieved by vertically coupling a hairpin resonator with a patch through a slot in the ground plane and then coupled to a dual-mode stub loaded resonator (SLR). Each band exhibits a 2nd-order filtering performance with improved bandwidth and out-of-band rejection. Such an integration technique could significantly reduce the dimension and complexity of traditional DBDP antennas/arrays. In the 2nd design, a novel dual-port dual-band antenna (with a frequency ratio of 1.38) with the integrated filtering and duplexing functions is proposed. The frequency duplexing function is implemented by coupling a single patch with two sets of resonator-based filtering channels via a U-slot resonator inserted in the ground. This device seamlessly integrates the functions of duplexers, filters and antennas in a very compact structure.

Item Type: Article
DOI/Identification number: 10.1109/ACCESS.2018.2805224
Uncontrolled keywords: Antenna, dual-band, dual-polarized, duplexing antenna, filtering antenna
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Steven Gao
Date Deposited: 01 Mar 2018 10:43 UTC
Last Modified: 16 Feb 2021 13:53 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/66227 (The current URI for this page, for reference purposes)
Gao, Steven: https://orcid.org/0000-0002-7402-9223
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