Design of perfect electrical conductor wall‐loaded 2.45 GHz high‐efficiency rectenna. Issue 3 (26th December 2018)

• Record Type: Journal Article
• Authors: Zheng, Gengqi; Dang, Kui; Sun, Baohua; Zhang, Jincheng
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 29:Issue 3(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-12-26
• Subjects: gain enhancement -- integration design -- rectenna -- wireless power transmission; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.21604
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: A 2.45 GHz industrial, scientific and medical band rectenna with a two‐layered structure for various applications involving microwave wireless power transmission (WPT) has been designed and measured in this article. A microstrip antenna with two perfect electrical conductor walls loaded for gain enhancement is designed. In addition, a typical single‐diode compact radio frequency (RF) rectifier with a series bandpass structure is presented. The simulated RF to dc conversion efficiency of the rectifier is above 50% when the input power ranges from 0 to 28 dBm. The fabricated rectenna is compact with a dimension of 0.5λ × 0.5λ. A RF to dc conversion efficiency of about 73% is achieved under received power density of 38.5 W/m 2 with a 500 Ω dc load. Due to the integration design of antenna and rectifier, the proposed rectenna is suitable to be well applied in miniaturization of rectenna array.