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|Title:||A dual-band rectenna using broadband yagi antenna array for ambient rf power harvesting|
|Citation:||Sun, H., Guo, Y.-X., He, M., Zhong, Z. (2013). A dual-band rectenna using broadband yagi antenna array for ambient rf power harvesting. IEEE Antennas and Wireless Propagation Letters 12 : 918-921. ScholarBank@NUS Repository. https://doi.org/10.1109/LAWP.2013.2272873|
|Abstract:||This letter presents a dual-band rectenna that can harvest ambient RF power of GSM-1800 and UMTS-2100 bands efficiently. The novel rectenna is based on a broadband 1 × 4 quasi-Yagi antenna array with bandwidth from 1.8 to 2.2 GHz and high gains of 10.9 and 13.3 dBi at 1.85 and 2.15 GHz, respectively. Also, a dual-band rectifier that can sufficiently enhance the RF-to-dc power conversion efficiency (PCE) at ambient RF power level is designed for the rectenna. Measurement results show that a PCE of 40% and an output dc voltage of 224 mV have been achieved over a 5-k Ω resistor when the dual-tone input power density is 455 μWm2. Additionally, output dc voltage varying between 300-400 mV can be obtained by collecting the relatively low ambient RF power. © 2002-2011 IEEE.|
|Source Title:||IEEE Antennas and Wireless Propagation Letters|
|Appears in Collections:||Staff Publications|
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