Compact Wideband Metamaterial Quadrature Coupler for 5G Beamforming Applications


Keriee, Hussam and Rahim, Mohamad Kamal A. and Nayyef Zubaidi, Nawres Abbas and Ayop, Osman and Al-Gburi, Ahmed Jamal Abdullah (2023) Compact Wideband Metamaterial Quadrature Coupler for 5G Beamforming Applications. PRZEGLĄD ELEKTROTECHNICZNY, 1 (3). pp. 174-177. ISSN 0033-2097

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A design of a compact wideband quadrature coupler based on metamaterial is presented at 3.5 GHz. The quadrature coupler is a significant component in beamforming networks with problems of narrow bandwidth and bulky size. The proposed quadrature coupler is designed with the implementation of composite right/left-handed (CRLH) arms metamaterial transmission line (TL). The metamaterial fingers are implemented in each branch section to reduce the size and improve the bandwidth. The proposed coupler is simulated using CST software and then fabricated on the FR4 substrate with (εr=4.4 and h=1.6 mm). The coupler performance achieved a fractional bandwidth of 55.42% operated at 2.25 GHz to 4.19 GHz. The coupling factor at 3.5 GHz is -3 ±0.5 dB with a phase difference of 88.01°. Compared to conventional BLC, the proposed coupler achieved a size reduction of 40.43%. The proposed coupler is suitable to be used in future 5G beamforming applications.

Item Type: Article
Uncontrolled Keywords: CRLH metamaterial, quadrature coupler, Beamforming, 5G, Wideband.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions: Faculty of Engineering and Technology (FET)
Depositing User: Ms Nurul Iqtiani Ahmad
Date Deposited: 02 May 2023 03:41
Last Modified: 02 May 2023 03:41


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