Abstract
A compact, single-layer microstrip rectenna for dedicated far-field RF wireless power-harvesting applications is presented. The proposed rectenna circuit configurations including multiband triple L-Arms patch antenna with diamond slot ground are designed to resonate at 10, 13, 17, and 26 GHz with 10 dB impedance bandwidths of 0.67, 0.8, 2.45, and 4.3 GHz, respectively. Two rectifier designs have been fabricated and compared, a half wave rectifier with a shunted Schottky diode and a voltage doubler rectifier. The measured and simulated maximum conversion efficiencies of the rectifier using the shunted diode half-wave rectifier are 41%, and 34%, respectively, for 300 Ω load resistance, whereas they amount to 50% and 43%, respectively, for voltage doubler rectifier with 650 Ω load resistance. Compared to the shunted rectifier circuit, it is significant to note that the voltage doubler rectifier circuit has higher efficiency. Both rectifier’s circuits presented are tuned for a center frequency of 10 GHz and implemented using 0.81 mm thick Rogers (RO4003c) substrate. The overall size of the antenna is 16.5 × 16.5 mm2, and the shunted rectifier is only 13.3 × 8.2 mm2 and 19.7 × 7.4 mm2 for the voltage doubler rectifier. The antenna is designed and simulated using the CST Microwave Studio Suite (Computer Simulation Technology), while the complete rectenna is simulated using Agilent’s ADS tool with good agreement for both simulation and measurements.
Highlights
A compact, single-layer microstrip rectenna for dedicated far-field RF wireless power-harvesting applications is presented. e proposed rectenna circuit configurations including multiband triple L-Arms patch antenna with diamond slot ground are designed to resonate at 10, 13, 17, and 26 GHz with 10 dB impedance bandwidths of 0.67, 0.8, 2.45, and 4.3 GHz, respectively
It is appropriate for wireless power transfer (WPT) and energy harvesting systems ; the design, simulation, and construction of two rectifiers’ circuit topologies for microwave power transmission operating at the 10 GHz band are presented. en, the antenna and the rectifiers are combined to test and measure the complete rectenna. e highest efficiency has been achieved by careful selection of the diode used in the rectifier design and low-loss matching network design. e proposed rectenna can be used for low power integrated circuit as sensor nodes
Federal Communication Commission (FCC): for example, they allow transmitting in ISM bands at a maximum power of 30 dBm (1W), and for implantable devices, it does not exceed 40 mW [15]. e simulation results were plotted by red markers, and the measurement results were illustrated by black markers. e DC output can provide the maximum efficiency of 34%, 0.4 V output voltage at 2.5 dBm of input power
Summary
A compact, single-layer microstrip rectenna for dedicated far-field RF wireless power-harvesting applications is presented. e proposed rectenna circuit configurations including multiband triple L-Arms patch antenna with diamond slot ground are designed to resonate at 10, 13, 17, and 26 GHz with 10 dB impedance bandwidths of 0.67, 0.8, 2.45, and 4.3 GHz, respectively. E main challenges for building an efficient rectenna are low intercepted power levels, losses in the matching circuit, diode nonlinearity, and changes in circuit performance with input power level, input frequency, and termination load. Tan and Liu designed a rectifier [5], with a measured conversion efficiency of 72% and length 10 cm at 10 GHz with an input power of 87 mW (19.4 dBm). A Triple L-Arms microstrip patch antenna was designed [8] to achieve a high gain with small size at 5 G bands of 10, 13, 17, and 26 GHz. e antenna is small enough to be included in sensors, domestic equipment, and wearables It is appropriate for WPT and energy harvesting systems ; the design, simulation, and construction of two rectifiers’ circuit topologies for microwave power transmission operating at the 10 GHz band are presented. The S-parameters for each SMT devices can be measured individually; extract
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
