Results 21 to 30 of about 5,493 (222)
A Flexible Dual-Band Rectenna With Full Azimuth Coverage
IEEE Access, 2021 This paper presents a novel cylindrical shaped dual-band flexible rectenna capable of harvesting RF energy from number of RF sources available in the entire azimuth plane.
Sandhya Chandravanshi +2 more
doaj +1 more source
A High-Efficiency and Reconfigurable Rectenna Array for Dynamic Output DC Power Control
Frontiers in Physics, 2022 In this paper, an output power reconfigurable rectenna array is proposed for the first time to harvest RF energy. The proposed rectenna array can be used to capture abundant RF energy with high conversion efficiency in a wide range of input power levels ...
Yuchao Wang +5 more
doaj +1 more source
Applied Sciences, 2022 In this paper, we proposed a high-efficiency 2.45 GHz and 5.8 GHz dual-band rectenna for wireless energy harvesting (WEH). First, a dual-band dielectric resonant antenna (DRA) was designed.
Jianxing Li +4 more
doaj +1 more source
Compact rectenna for space application [PDF]
2014 IEEE MTT-S International Microwave Symposium (IMS2014), 2014 This paper addresses an ultra-compact (2.8 cm 2 ) and wide bandwidth rectenna operating in the extended Ku-band. Experimental results demonstrate that the proposed rectenna can harvest a DC power ranging from 0.125 mW to 1.43 mW for frequencies between 14.5 GHz to 19.5 GHz and for resistive loads between 250 Ω and 4 kΩ.
Takacs, Alexandru +4 more
openaire +2 more sources
Rectennas for thermal-energy conversion [PDF]
2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 We demonstrated the conversion of thermal energy in the form of far- and mid-infrared using a micro rectenna, consisting of a spiral antenna coupled to an ultra-fast nanodiode, the so-called self-switching device (SSD). A maximum efficiency of 0.02 % was measured at a 973 K (700 °C) using a calibrated black-body radiator illuminating the rectenna.
Pan, Yi +2 more
openaire +3 more sources
Triple-Band Single-Layer Rectenna for Outdoor RF Energy Harvesting Applications
Sensors, 2021 A triple-band single-layer rectenna for outdoor RF energy applications is introduced in this paper. The proposed rectenna operates in the frequency bands of LoRa, GSM-1800, and UMTS-2100 networks.
Achilles D. Boursianis +6 more
doaj +1 more source
IEEE Access, 2021 This paper presents a large, modular X-band rectenna array developed for the planned demonstration of a space-to-Earth power beaming link operating at 10 GHz. The array is composed of 16 tiles assembled into a panel greater than 1 m x 1 m in size.
Brian B. Tierney +3 more
doaj +1 more source
A carbon nanotube optical rectenna [PDF]
Nature Nanotechnology, 2015 An optical rectenna--a device that directly converts free-propagating electromagnetic waves at optical frequencies to direct current--was first proposed over 40 years ago, yet this concept has not been demonstrated experimentally due to fabrication challenges at the nanoscale. Realizing an optical rectenna requires that an antenna be coupled to a diode
Asha Sharma +3 more
openaire +2 more sources
Design of a Compact Planar Rectenna for Wireless Power Transfer in the ISM Band
International Journal of Antennas and Propagation, 2014 This paper presents a compact planar rectenna with high conversion efficiency in the ISM band. The proposed rectenna is developed by the decomposing of a planar rectenna topology into two functional parts and then recombining the two parts into a new ...
Fang Zhang +7 more
doaj +1 more source
Linear-Polarization-Insensitive Rectenna Design for Ground-to-Air Microwave Power Transmission
IEEE Access, 2020 This paper presents a linear-polarization-insensitive rectenna for the ground-to-air microwave power transmission (MPT). With an integration of a hybrid coupler and a dual-linearly-polarized (DLP) antenna, a linearly-polarized (LP) incident wave can be ...
Hao Zhang, Tung Ngo
doaj +1 more source