Citation

Abdulbari, Ali Abdulateef and Abdul Rahim, Sharul Kamal and Abd Aziz, Mohamad Zoinol Abidin and Tan, Kim Geok and Noordin, N. K. and M. Nor, M. Z. (2021) New design of wideband microstrip branch line coupler using T-shape and open stub for 5G application. International Journal of Electrical and Computer Engineering (IJECE), 11 (2). pp. 1346-1355. ISSN 2088-8708 (Unpublished)

Text New design of wideband microstrip branch line coupler using T-shape and open stub for 5G application.pdf Restricted to Repository staff only Download (1MB)

Abstract

A new design of wideband branch-line coupler (BLC) using T-shape with open stub microstrip line is proposed. The branch line coupler is integrated with low and high impedance λ/4 transmission lines to achieve the comparatively compact size of (27.2 mm × 16.5 mm). operating the bandwidth in simulated of BLC from 2.9 to 4 GHz is obtained 30.22% with a frequency center of 3.5 GHz. Meanwhile, the measured bandwidth of the BLC is cover from 2.8 GHz to 4.22 GHz is equal 33.40% at the center frequency 3.55 GHz respectively. The BLC simulated has low isolation and high return loss of -29.28 dB and -30.69 dB at the center frequency 3.5 GHz.Whereas, the measured result has a simple difference in the return loss and isolation are -27.43dB and -24.46 dB at the frequency 3.55GHz respectively. This BLC design has a good coupling factor of -2.97 and insertion loss of -3.65 dB. Furthermore, it obtains an excellent amplitude and phases different between two output of ±0.1 and 93.6°±3.4° with high performance. There is a good agreement between the simulated result and the measured result. This branch line coupler design used for 5G applications for future wireless communication systems.

Item Type:	Article
Uncontrolled Keywords:	Wireless communication systems, 5G, open stub, phase shift, slot T-shape, T-model, wideband BLC
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:	07 Mar 2021 21:48
Last Modified:	23 Aug 2021 01:30
URII:	http://shdl.mmu.edu.my/id/eprint/8052

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