Differential Rectenna with High Expandability and Compact Structure for Wireless Power Transfer using Microwave

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560465
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Saga University
• Principal Investigator: NISHIYAMA Eisuke 佐賀大学, 工学(系)研究科(研究院), 助教 (30295026)
• Co-Investigator(Kenkyū-buntansha): TOYODA Ichihiko 佐賀大学, 工学系研究科, 教授 (80612663)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: レクテナ / 無線電力伝送 / 平面アンテナ

Outline of Final Research Achievements

In this study, a novel rectenna is proposed and basic characteristics are investigated. This study can improve the wireless power transfer system. Antenna elements are integrated with a rectifying circuit to form a rectenna that has a differential operation with a compact structure. This rectenna has two significant advantages that are an expandability and a high RF-DC conversion efficiency.
A DC-array and RF-array using the proposed differential rectenna as an array unit achieving a high power output are proposed. Because of the compact structure of the differential rectenna, a large scale rectenna that consists of many antenna elements can be design in a simple procedure. In addition, the rectenna is modified to improve the RF-DC conversion efficiency and to achieve any polarization receivable function.
It is conferred that the proposed rectennas and the arrays has excellent performances.

Free Research Field

アンテナ工学