High gain multiband planar spiral slot rectenna with dipole arms  

作　　者：Tan Lirong Zhao Feng Cai Lingxiang Sun Youming Poo Yin 

机构地区：[1]Nanjing Vocational College of Information Technology, Nanjing 210023 , China [2]Nanjing University, Nanjing 210023 , China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2019年第3期91-97,共7页中国邮电高校学报（英文版）

基　　金：supported by the Open Fund Project of Engineering Research and Development Center of Nanjing College of Information Technology (KF20160103);the Jiangsu Province Qing Lan Project,the Jiangsu Province 333 Project (BRA2017343);the Jiangsu Province University Student Innovation and Entrepreneurship Training Program (2018);the Nanjing Qixia District Industry-University-Research Cooperation Project (GC201804);the National Natural Science Foundation of China (61671232)

摘　　要：A novel low profile multiband rectenna was proposed for harvesting the 2 nd generation(2 G), the 3 rd generation(3 G), the 4 th generation(4 G), wireless local area networks(WLANs) etc., electromagnetic wave energy. The proposed rectenna consists of a novel multiband antenna and a rectifier. The multiband antenna includes a radiating element on one side of a single layer dielectric substrate and a feeding spiral balun on the other side of the substrate. A conductive via is connected between the balun and the radiating element. In the radiating element, a deformed dipole structure is connected with an equiangular spiral slot structure and is used to generate a low frequency radiation around 900 MHz. The multiband antenna can work simultaneously at 0.869 GHz^0.948 GHz, 1.432 GHz^2.173 GHz, and 2.273 GHz^2.465 GHz with its peak gains of 7.1 dBi at 903 MHz, 4.1 dBi at 1 800 MHz, 5.2 dBi at 2 430 MHz. The radio frequency to direct current(RF-to-DC) conversion efficiencies of the rectifier are 58%~62% at these three frequencies for an input power of 0 dBm. The overall measurement results validate that the rectenna suits for energy harvesting and exhibits approximate maximum efficiencies of 58% at 0.9 GHz, 56% at 1.8 GHz, and 55% at 2.4 GHz with a low incident power density of 8 μW/cm^2.A novel low profile multiband rectenna was proposed for harvesting the 2 nd generation(2 G), the 3 rd generation(3 G), the 4 th generation(4 G), wireless local area networks(WLANs) etc., electromagnetic wave energy. The proposed rectenna consists of a novel multiband antenna and a rectifier. The multiband antenna includes a radiating element on one side of a single layer dielectric substrate and a feeding spiral balun on the other side of the substrate. A conductive via is connected between the balun and the radiating element. In the radiating element, a deformed dipole structure is connected with an equiangular spiral slot structure and is used to generate a low frequency radiation around 900 MHz. The multiband antenna can work simultaneously at 0.869 GHz～0.948 GHz, 1.432 GHz～2.173 GHz, and 2.273 GHz～2.465 GHz with its peak gains of 7.1 dBi at 903 MHz, 4.1 dBi at 1 800 MHz, 5.2 dBi at 2 430 MHz. The radio frequency to direct current(RF-to-DC) conversion efficiencies of the rectifier are 58%～62% at these three frequencies for an input power of 0 dBm. The overall measurement results validate that the rectenna suits for energy harvesting and exhibits approximate maximum efficiencies of 58% at 0.9 GHz, 56% at 1.8 GHz, and 55% at 2.4 GHz with a low incident power density of 8 μW/cm^2.

关 键 词：energy harvesting deformed DIPOLE planar equiangular SPIRAL ANTENNA MULTIBAND ANTENNA SLOT ANTENNA RECTENNA 

分 类 号：TN[电子电信]