Abstract
In this paper, a new microstrip triplexer is designed to work at 2.5 GHz, 4.4 GHz and 6 GHz for mid-band 5G applications. All channels are flat with three low group delays (GDs) of 0.84 ns, 0.75 ns and 0.49 ns, respectively. Compared to the previously reported works, the proposed triplexer has the minimum group delay. The designed triplexer has 18.2%, 13.7%, 23.6% fractional bandwidths (FBW%) at 2.5 GHz, 4.4 GHz and 6 GHz, respectively. The obtained insertion losses (ILs) are low at all channels. These features are obtained without a noticeable increase in the overall size. A novel and simple resonator is used to design the proposed triplexer, which includes two pairs of coupled lines combined with a shunt stub. A perfect mathematical analysis is performed to find the resonator behavior and the layout optimization. The type of shunt stub is determined mathematically. Also, the smallness or largeness of some important physical dimensions is determined using the proposed mathematical analysis. Finally, the designed triplexer is fabricated and measured, where the measurement results verify the simulations.
Funder
Higher Institution Centre of Excellence (HICOE), Ministry of Higher Education Malaysia, Wireless Communication Centre (WCC), Universiti Teknologi Malaysia
Faculty of Engineering, Multimedia University (MMU), Cyberjaya, Malaysia
Publisher
Public Library of Science (PLoS)
Reference31 articles.
1. Design of double-notch UWB filter with upper stopband characteristics based on ACPW-DGS;M Gao;PLoS ONE,2023
2. Two closely spaced microstrip patches with high isolation for full-duplex/MIMO applications;H-H Tran;PLoS ONE,2023
3. Using a hybrid encoding method based on the hexagonal resonators to increase the coding capacity of chipless RFID tags;M Hayati;Int J RFMicrowComput Aided Eng,2022
4. A new compact and low phase imbalance microstrip coupler for 5G wireless communication systems;S I. Yahya;PLoS ONE,2023
5. Design and Fabrication of a Compact Branch-Line Hybrid Coupler with a Balanced Phase Using a New Microstrip Structure for GSM Applications;L. Nouri;AEU-International Journal of Electronics and Communications,2023