scholarly journals DESIGN OF RF ENERGY HARVESTING SYSTEM FOR ENERGIZING LOW POWER DEVICES

2012 ◽  
Vol 132 ◽  
pp. 49-69 ◽  
Author(s):  
Norashidah Md. Din ◽  
Chandan Kumar Chakrabarty ◽  
Aima Bin Ismail ◽  
Kavuri Kasi Annapurna Devi ◽  
Wan-Yu Chen
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Power Devices ◽  
Rf Energy Harvesting ◽  
Energy Harvesting System ◽  
Rf Energy

An Ultra-Low-Power Integrated RF Energy Harvesting System in 65-nm CMOS Process

2015 ◽  
Vol 35 (2) ◽  
pp. 421-441 ◽  
Author(s):  
Lian-xi Liu ◽  
Jun-chao Mu ◽  
Ning Ma ◽  
Wei Tu ◽  
Zhang-ming Zhu ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Cmos Process ◽  
Rf Energy Harvesting ◽  
Ultra Low Power ◽  
Energy Harvesting System ◽  
Rf Energy

scholarly journals RF Energy Harvesting System Based on an Archimedean Spiral Antenna for Low-Power Sensor Applications

Sensors ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 1318 ◽  
Author(s):  
Antonio Alex-Amor ◽  
Ángel Palomares-Caballero ◽  
José Fernández-González ◽  
Pablo Padilla ◽  
David Marcos ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Power Level ◽  
Storage Capacitor ◽  
Spiral Antenna ◽  
Archimedean Spiral ◽  
Rf Energy Harvesting ◽  
Correct Operation ◽  
Energy Harvesting System ◽  
Rf Energy

This paper presents a radiofrequency (RF) energy harvesting system based on an ultrawideband Archimedean spiral antenna and a half-wave Cockcroft-Walton multiplier circuit. The antenna was proved to operate from 350 MHz to 16 GHz with an outstanding performance. With its use, radio spectrum measurements were carried out at the Telecommunication Engineering School (Universidad Politécnica de Madrid) to determine the power level of the ambient signals in two different scenarios: indoors and outdoors. Based on these measurements, a Cockcroft-Walton multiplier and a lumped element matching network are designed to operate at 800 MHz and 900 MHz frequency bands. To correct the frequency displacement in the circuit, a circuit model is presented that takes into account the different parasitic elements of the components and the PCB. With an input power of 0 dBm, the manufactured circuit shows a rectifying efficiency of 30%. Finally, a test is carried out with the full RF energy harvesting system to check its correct operation. Thus, the RF system is placed in front of a transmitting Vivaldi antenna at a distance of 50 cm. The storage capacitor has a charge of over 1.25 V, which is enough to run a temperature sensor placed as the load to be supplied. This demonstrates the validity of the RF energy harvesting system for low-power practical applications.

Design of an enhanced RF energy harvesting system for wireless sensors

2013 ◽  
Author(s):  
Ahmed Al-Khayari ◽  
Hamed Al-Khayari ◽  
Sulaiman Al-Nabhani ◽  
Mohammed M. Bait-Suwailam ◽  
Zia Nadir
Keyword(s):  
Energy Harvesting ◽  
Wireless Sensors ◽  
Rf Energy Harvesting ◽  
Energy Harvesting System ◽  
Rf Energy
Sign in / Sign up

Export Citation Format

Share Document