Broadband full-duplex antenna for IEEE 802.11 protocols

Erol, Lütfi Yiğit and Uzun, Abdulkadir and Seyyedesfahlan, Mirmehdi and Tekin, İbrahim (2021) Broadband full-duplex antenna for IEEE 802.11 protocols. IEEE Antennas and Wireless Propagation Letters, 20 (10). pp. 1978-1982. ISSN 1536-1225 (Print) 1548-5757 (Online)

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In this letter, a broadband two-port full-duplex (FD) antenna is designed, implemented, and measured. The broadband two-port FD antenna is based on a three-port radiating disk integrated with a broadband balun for differential feeding. The prototype antenna provides more than 30 dB interport isolation for 10 dB return loss bandwidth of 4.9 GHz (2.3-7.2 GHz), moreover, higher than 40 dB interport isolation is achieved for 1.2 GHz bandwidth (3.6-4.8 GHz). The measured peak realized gain achieved is between 2.92-8.26 dBi. To the best of our knowledge, no such a planar antenna in existing literature achieves more than 30 dB interport isolation for such a wide bandwidth. The broadband two-port FD antenna can be used for sub-6 GHz 5G (NR) applications and all Wi-Fi bands including the IEEE 802.11be which requires full-duplexity, wide bandwidth, and backward compatibility.
Item Type: Article
Uncontrolled Keywords: Balun; broadband antennas; full-duplex (FD); high isolation; IEEE 802.11be; self-interference (SI) cancellation
Divisions: Faculty of Engineering and Natural Sciences
Depositing User: İbrahim Tekin
Date Deposited: 29 Aug 2022 20:49
Last Modified: 29 Aug 2022 20:49

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