Figure 2 - uploaded by Manee Sangaran
Content may be subject to copyright.
Contexts in source publication
Context 1
... work will be the first to explore energy harvesting in a broadcast environment and also first of the very few works to harvest energy from Ku-band frequency range and utilized for smart phone charging application. Figure 2 depicts the general signal flow of an uplink transmission path. A modulator is used to modulate the information and data into a carrier signal for transmission which operates on IF frequency 70 MHz. ...
Context 2
... circuit was tested by connecting to a DC power supply, and the overvoltage protection was noticed working fine. Both the 70 MHz and 13 GHz circuits were then connected to the TPS2121 circuit as shown in Figure 20. The power management circuit was tested by varying the power level to the input of the RF to DC circuits. ...
Context 3
... work will be the first to explore energy harvesting in a broadcast environment and also first of the very few works to harvest energy from Ku-band frequency range and utilized for smart phone charging application. Figure 2 depicts the general signal flow of an uplink transmission path. A modulator is used to modulate the information and data into a carrier signal for transmission which operates on IF frequency 70 MHz. ...
Context 4
... circuit was tested by connecting to a DC power supply, and the overvoltage protection was noticed working fine. Both the 70 MHz and 13 GHz circuits were then connected to the TPS2121 circuit as shown in Figure 20. The power management circuit was tested by varying the power level to the input of the RF to DC circuits. ...
Similar publications
Citations
... However, the prototype's efficiency was reported at 25%. A third study conducted by Sangaran, Ramasamy, and Din [5] focused on the design of a prototype for low-power sensors and mobile-charging applications. Their 8-stage Villard RF energy harvesting system, equipped with a custom-built antenna and power management circuit, demonstrated the capability to harvest a DC output voltage of 0.35 V within the Wi-Fi band at 2.4 GHz and 185 cm from the source. ...
With the escalating demand for Radio Frequency Identification (RFID) technology and the Internet of Things (IoT), there is a growing need for sustainable and autonomous power solutions to energize low-powered devices. Consequently, there is a critical imperative to mitigate dependency on batteries during passive operation. This paper proposes the conceptual framework of rectenna architecture-based radio frequency energy harvesters’ performance, specifically optimized for low-power device applications. The proposed prototype utilizes the surroundings’ Wi-Fi signals within the 2.4 GHz frequency band. The design integrates a seven-stage Cockroft-Walton rectifier featuring a Schottky diode HSMS286C and MA4E2054B1-1146T, a low-pass filter, and a fractal antenna. Preliminary simulations conducted using Advanced Design System (ADS) reveal that a voltage of 3.53 V can be harvested by employing a 1.57 mm thickness Rogers 5880 printed circuit board (PCB) substrate with an MA4E2054B1-1146T rectifier prototype, given a minimum power input of −10 dBm (0.1 mW). Integrating the fabricated rectifier and fractal antenna successfully yields a 1.5 V DC output from Wi-Fi signals, demonstrable by illuminating a red LED. These findings underscore the viability of deploying a fractal antenna-based radio frequency (RF) harvester for empowering small electronic devices.
... A third study by Sangaran,Ramasamy and Din [5] designed a prototype for low power sensor and mobile charging application and showed that a complete 8-stages Villard RF energy harvesting systems with custom build antenna and power management circuit is capable of harvesting a DC output voltage of 0.35 V at Wi-Fi band of 2.4 GHz and distance from the source at 185 cm. They coupled the rectifier with a BQ25570 power management system which yields a regulated output of 3V. ...
