Citation

Yau, Usman and Tiang, Jun Jiat and Muhammad, Surajo and Khaddaj Mallat, Nazih and Yau, Isiyaku (2026) Wideband bow-tie slot antenna with defected ground structure for efficient radio frequency energy harvesting. Bulletin of Electrical Engineering and Informatics, 15 (4). pp. 3022-3035. ISSN 2089-3191

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Abstract

This work proposes the design and performance assessment of a wideband bow-tie slot antenna specifically developed for radio frequency energy harvesting (RFEH). The design employs a self-complementary bow-tie configuration, integrated with a defected ground structure (DGS) and fractal elements, to achieve improved bandwidth (BW) and gain. It achieved -10 dB simulated (measured) BW of 2.50 GHz (2.10 GHz) over a frequency span of 0.80-3.30 GHz (0.80 to 2.90 GHz) respectively. The results cover a target fo, simulated and measured fractional bandwidth (FBW) of 122% and 114% respectively, with a peak realized gain of 6.42 dBi. The antenna also achieved a compact dimension of 126 mm × 90 mm (0.73 lamda g × 0.52 lamda g). It is finally integrated with a wideband RF-rectifier for the purpose of validation. The design enables continuous wireless power transfer (WPT) suitable for RFEH in internet of things (IoT) devices and sensor nodes.

Item Type:	Article
Uncontrolled Keywords:	Bow-tie slot, Defected ground structure, Radio frequency energy harvesting, Microstrip antenna, Power management module, Wideband antenna
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions:	Faculty of Artificial Intelligence & Engineering (FAIE)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	04 Sep 2026 00:41
Last Modified:	04 Sep 2026 00:41
URII:	http://shdl.mmu.edu.my/id/eprint/16656

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