3D Antenna Characterization for WPT Applications

Sensors

Pedro Pinho¹  Diogo Pires²  Marina Jordão²  Daniel Belo²  Nuno Borges Carvalho² 

[1] Instituto de Telecomunicações, 3810-193 Aveiro, Portugal;Instituto de Telecomunicações, Departamento de Eletrónica, Telecomunicações e Informática, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;

关键词: 3D antenna array;    Internet of Things (IoT);    multi-sines;    over-the-air (OTA);    wireless power transmission (WPT);    wireless sensor network (WSN);   

DOI  :  10.3390/s21134461

来源: DOAJ

【 摘 要 】

The main goal of this paper is to present a three-dimensional (3D) antenna array to improve the performance of wireless power transmission (WPT) systems, as well as its characterization with over-the-air (OTA) multi-sine techniques. The 3D antenna consists of 15 antenna elements attached to an alternative 3D structure, allowing energy to be transmitted to all azimuth directions at different elevation angles without moving. The OTA multi-sine characterization technique was first utilized to identify issues in antenna arrays. However, in this work, the technique is used to identify which elements of the 3D antenna should operate to transmit the energy in a specific direction. Besides, the 3D antenna design description and its characterization are performed to authenticate its operation. Since 3D antennas are an advantage in WPT applications, the antenna is evaluated in a real WPT scenario to power an RF–DC converter, and experimental results are presented.

【 授权许可】

Unknown