A High-Input Power Rectifier Circuit for 2.45GHz Microwave Wireless Power Transmission

2021 ◽  
pp. 1-1
Author(s):  
Hui Xiao ◽  
Huaiqing Zhang ◽  
Wei Song ◽  
Jiapeng Wang ◽  
Weihao Chen ◽  
...  
Keyword(s):  
Power Transmission ◽  
Input Power ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
High Input ◽  
Rectifier Circuit ◽  
High Input Power ◽  
Power Rectifier

scholarly journals Feasibility study of microwave wireless powered flight for micro air vehicles

2017 ◽  
Vol 4 (2) ◽  
pp. 146-159 ◽  
Author(s):  
Kohei Shimamura ◽  
Hironori Sawahara ◽  
Akinori Oda ◽  
Shunsuke Minakawa ◽  
Sei Mizojiri ◽  
...  
Keyword(s):  
Power Transmission ◽  
Axial Ratio ◽  
Micro Air Vehicles ◽  
Transmission Efficiency ◽  
Input Power ◽  
Bend Angle ◽  
Back Side ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Air Vehicles

New small unmanned air vehicles designated as micro air vehicles (MAVs) are increasingly attractive for research, environmental observation, and commercial purposes. As described herein, the feasibility of a system for wireless power transmission via microwaves for MAVs was investigated. For its light weight and flexibility, a textile-based rectenna was proposed for microwave wireless power transmission of MAVs. To investigate bending effects on radiation performance, a microstrip patch antenna with a 5.8 GHz left-hand circular polarization was developed on a textile substrate. The antenna return loss, 20 dB, increased slightly with the antenna bending angle. An axial ratio <3 dB was maintained when the antenna bend angle was <30°. A rectification circuit was formed on the back side felt with sandwiched copper foil as a ground plate. Its weight per unit area was 0.08 g/m2, with maximum rectification efficiency of 58% with 100 Ω load at 63 mW input power. The average and maximum total transmission efficiency using the 5.8 GHz multiple rectenna with a 2.45 GHz retrodirective system were, respectively, 0.44 and 0.60%. The possibility and feasibility of microwave power transmission system using the textile-based rectenna were evaluated.

scholarly journals Analysis and Optimization of Ultra-Low-Power Rectifier with High Efficiency for Applications in Wireless Power Transmission and Energy Harvesting

2020 ◽  
Vol 19 (1) ◽  
pp. 60-85 ◽  
Author(s):  
Raphaella Luiza Resende da Silva ◽  
Sandro Trindade Mordente Gonçalves ◽  
Christian Vollaire ◽  
Arnaud Bréard ◽  
Gláucio Lopes Ramos ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
High Efficiency ◽  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Ultra Low Power ◽  
Power Rectifier

scholarly journals Design of a Small Array Antenna with an Extended Cavity Structure for Wireless Power Transmission

2020 ◽  
Vol 20 (1) ◽  
pp. 9-15
Author(s):  
Jun Hur ◽  
Hosung Choo
Keyword(s):  
Power Transmission ◽  
Transmission Efficiency ◽  
Input Power ◽  
Array Antenna ◽  
Antenna Element ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Cavity Structure ◽  
Extended Cavity ◽  
Small Array

This paper proposes a design of a small array antenna with an extended cavity structure for wireless power transmission. The proposed array element consists of a square radiating loop, which is designed to resonate at 5.8 GHz, and an extended cavity structure to reduce the mutual coupling between adjacent elements. We derive the optimal element number in a limited space by considering the input power for each element, fabrication cost, and aperture efficiency of the system. To verify the suitability of the proposed a small array with an extended cavity structure, a 2 × 2 downscaled array antenna is fabricated and measured in a full anechoic chamber. The results confirm that the proposed antenna element with an extended cavity structure is suitable for wireless power transmission systems; the proposed array has a transmission efficiency of about 1% at a distance of 2 m when the array is applied to both transmitting and receiving antennas.

Advance and Innovation in Wireless Power Transmission Technology for Autonomous Systems

2017 ◽  
pp. 316-361 ◽  
Author(s):  
Mohamed Adel Sennouni ◽  
Benaissa Abboud ◽  
Abdelwahed Tribak ◽  
Hamid Bennis ◽  
Mohamed Latrach
Keyword(s):  
Antenna Arrays ◽  
Power Transmission ◽  
Autonomous Systems ◽  
Input Power ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Microwave Frequencies ◽  
Phased Antenna Arrays ◽  
Potential Applications ◽  
Technological Developments

This chapter focuses on the concept of transmitting power without using wires that is also known as Wireless Power Transmission (WPT). This chapter attempts to present the most important and relevant works in this field of research in order to develop a topical ‘overview', present the current results, and also share some contributions and ‘vision' for the future. The technological developments in Wireless Power Transmission is also presented and discussed. The advantages, disadvantages, biological impacts and the most potential applications of WPT are also presented. This chapter presents also new and efficient designs of a rectifying antenna (rectenna) involved to be used at low and high input power levels constraints at microwave frequencies of ISM band in particular at 2.45 GHz and 5.8 GHz. The rectennas have been developed were based on microstrip technology incorporating a new class of phased antenna arrays with circular polarization associated with a new RF-to-DC rectifiers.

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