Citation

Md Jizat, Noorlindawaty and Afiqah, Ayuni and Zainuddin, Norsiha and Abdullah, Norazah and Yamada, Yoshihide (2024) Analysis of RF terminator to the Butler Matrix performance at 28 GHz. Journal of Physics: Conference Series, 2922 (1). 012010. ISSN 1742-6588

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Abstract

. In the wireless network systems, where signal integrity is essential, Radio Frequency (RF) terminators act as an important element, assuring no disruption of communication, preventing reflection, and maximizing performance. In the industry and academia, most RF terminators use 50 or 75 impedance matching to prevent signal loss and to complete the signal flows in the RF circuit. When RF energy enters a port without terminator, the unused signal will reflect into the network and causing problems to the RF devices. Another issue that could arise from an unterminated port is the possibility of external interfering signals from a nearby devices with an undesirable RF signal will disrupting the real-time measurement. Beamforming system is one of the elements that is essential in the wireless network especially for millimeter wave application. However, when the frequency is higher, the losses will be the main challenges. The losses are contributed from the internal and external signals. The internal signal loss can be improved with the stringent requirement in the design. However, the external signal is inevitable, thus RF terminator is needed at the unused port. In this study, the Butler Matrix elements using terminator to the unused port and without the terminator is analyzed. According to the simulation, the structure with the terminator produces a more stable and uniform performances in terms of the S-Parameter and the output phase, while the maximum signal is observed to the output port in the power flow analysis. The results can serve as the basis for the future research in the other RF devices used for wireless communication.

Item Type:	Article
Uncontrolled Keywords:	Wireless communication.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Nurul Iqtiani Ahmad
Date Deposited:	06 Feb 2025 05:14
Last Modified:	06 Feb 2025 05:14
URII:	http://shdl.mmu.edu.my/id/eprint/13362

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