Compact Wideband Metamaterial Quadrature Coupler for 5G Beamforming Applications

被引：2
|
作者：
Keriee, Hussam Hamid [1 ,2 ]
Rahim, Mohamad Kamal A. [1 ]
Nayyef, Nawres Abbas [3 ]
Ayop, Osman [1 ]
Al-Gburi, Ahmed Jamal Abdullah [4 ]
机构：
[1] Univ Teknol Malaysia, Fac Engn, Sch Elect Engn, Adv RF & Microwave Res Grp ARFMRG, Utm Johor Bahru 81310, Johor, Malaysia
[2] Al Farahidi Univ, Coll Med Tech, Dept Med Instrumentat Engn Tech, Baghdad, Iraq
[3] Multimedia Univ, Fac Engn & Technol, Melaka, Malaysia
[4] Univ Teknikal Malaysia Melaka UTeM, Ctr Telecommun Res & Innovat CeTRI, Microwave Res Grp MRG, Fak Kejuruteraan Elekt & Kejuruteraan Komputer FKE, Hang Tuah Jaya 76100, Durian Tunggal, Malaysia
来源：
PRZEGLAD ELEKTROTECHNICZNY | 2023年 / 99卷 / 03期
关键词：
CRLH metamaterial; quadrature coupler; Beamforming; 5G; Wideband; BRANCH-LINE COUPLER; 4 BUTLER MATRIX; BANDWIDTH; FSS;
D O I：
10.15199/48.2023.03.30
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 (epsilon r=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 degrees. 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.
引用
收藏
页码：172 / 175
页数：4
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