Efficient quad-band RF energy harvesting rectifier for wireless power communications


Muhammad, Surajo and Tiang, Jun Jiat and Wong, Sew Kin and Smida, Amor and Waly, Mohamed I. and Iqbal, Amjad (2021) Efficient quad-band RF energy harvesting rectifier for wireless power communications. AEU - International Journal of Electronics and Communications, 139. p. 153927. ISSN 1434- 8411

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This work presents a compact quad-band rectifier implemented using a multi-stub impedance matching network (IMN). The IMN comprises three blocks of multiple stub tuning connected via a meandered line (MDL) to achieve multiple frequency susceptance blocks. The proposed rectifier is designed to operate at (1.82 GHz, 2.1 GHz, 2.4 GHz, and 2.67 GHz) for GSM/1800, UMTS/2100, Wi-Fi, and LTE/2600 frequency bands. The rectifier occupies a total area of 0.450.25 on the RT/Duroid 5880 PCB board using full ground architecture. The fabricated rectifier achieved RF-to-dc (radio frequency direct current) power conversion efficiency (PCE) of (31.7%, 23.5%, 25.4%, 15.5%) across the four operating frequencies for an input power of −20 dBm, respectively. The proposed quad-band rectifier realized a peak RF-to-dc PCE of 86.8% from the four-tones RF input power at 3 dBm. The rectifier can also attain over 55% RF-to-dc PCE along 1.7 GHz to 2.4 GHz frequency range, and at 2.67 GHz for 0 dBm input power levels. An ambient output dc voltage of 0.433 V for multi-tone input signals is realised by the proposed rectifier. The rectifier operates a bq25504-674 power management module (PMM). An output dc voltage of 1.271 V is achieved through the PMM connection. Hence, with proper management of the proposed rectifier, the harvested ambient RF signals can activate a number of low-powered devices.

Item Type: Article
Uncontrolled Keywords: RF energy harvesting (RFEH)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2896-2985 Production of electricity by direct energy conversion
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Nurul Iqtiani Ahmad
Date Deposited: 30 Aug 2021 04:23
Last Modified: 30 Aug 2021 04:23
URII: http://shdl.mmu.edu.my/id/eprint/9474


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