A Compact Metamaterial Dual-band Branch-line Coupler for 5G Applications


  • Abdulkadir Bello Shallah Wireless Communication Centre, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia.
  • Farid Zubir Wireless Communication Center (WCC), Faculty of Engineering, Universiti Teknologi Malaysia
  • Mohamd Kamal A. Rahim Communication department, Faculty of Engineering, Universiti Teknologi Malaysia
  • Mohamad Rijal Hamid Communication Engineering Department, Faculty of Engineering, Universiti Teknologi Malaysia
  • Arshad Karimbu Vallappil Department of Electrical Engineering, Faculty of Engineering, Islamic University of Madinah, P.O. BOX 170 Madinah, 41411, Saudi Arabia
  • Huda A. Majid Fakulti Teknologi Kejuruteraan (FTK), Hab Pendidikan Tinggi Pagoh, Universiti Tun Hussein Onn Malaysia, Parit Raja, Johor, Malaysia.
  • Zubaida Yusoff Faculty of Engineering, Multimedia University, Persiaran Multimedia, Cyberjaya, Selangor, Malaysia
  • Abdul Basit School of Information Science and Engineering, NingboTech University, 315100, Ningbo, China.




This study introduces a compact branch-line coupler (BLC) based on metamaterial (MTM) technology that can operate in sub-6 GHz 5G frequency bands. Conventional vertical and horizontal sections of the BLC were replaced with T-shaped TLs and interdigital capacitor (IDC) unit cells incorporated into the BLC sections to improve their performance and reduce their dimensions. The BLC is designed on a Rogers RT5880 substrate material, and it operates at dual frequencies of 0.7 GHz and 3.5 GHz. The design was simulated using CST Microwave Studio software and achieved enhanced frequency band ratio.




How to Cite

Shallah, A. B., Zubir, F., A. Rahim, M. K., Hamid, M. R., Vallappil, A. K., Majid, H. A., Yusoff, Z., & Basit, A. (2023). A Compact Metamaterial Dual-band Branch-line Coupler for 5G Applications. ELEKTRIKA- Journal of Electrical Engineering, 22(2), 30–36. https://doi.org/10.11113/elektrika.v22n2.448