2010-08-012024-05-13https://scholars.lib.ntu.edu.tw/handle/123456789/650347摘要：2.4 GHz為一廣為運用的無線頻道，有Wi-Fi 802.11b/g， Bluetooth， Zigbee，甚至微波爐的頻段亦是於2.4 GHz附近，對於無線通訊系統而言此為一繁忙的頻道，但從另一方面來看，此頻段亦充滿著豐富的無線能量，若能利用先進的CMOS製程，及2.4-GHz射頻電路的技巧，可有效增加無線裝置的電池壽命並省除現有多規格的充電器。 本計畫將發展2.4-GHz ISM band的無線能量轉換系統，並利用電路技巧，增高效率。過去由於射頻收發機的功率太高及2.4-GHz無線系統能量轉換系統轉換效率太差而無法被廣泛運用於無線電子系統，但隨CMOS射頻設計技術改善，功率下降，使其每日消耗能量小於40焦耳，因此發展適用於2.4-GHz 射頻無線能量轉換系統，變得極具潛力。 本計畫主要分成以下部份：1. 低功率自我喚醒放大器2. 高效率整流器， 3. 低功率2.4 GHz射頻收發機及能量轉換系統整合 (限於此一年期的計畫，工作項目 3 將於未來向其他政府機構申請相關的計畫)。 <br> Abstract: 2.4 GHz is a widely deployed frequency band for many communication systems, such as Wi-Fi 802.11b/g, Bluetooth, Zigbee and even microwave ovens also generate 2.4-GHz signals. From the perspectives of wireless communication systems, 2.4 GHz is an extremely busy band. However, on the other hand, plenty of RF power exists in this band. Therefore, if the advanced CMOS technologies can be employed and 2.4-GHz circuit design techniques, battery life time can be improved and multi-standard power chargers can be eliminated. This project will develop a high efficient 2.4-GHz RF power harvesting system with the aid of the advanced circuit design to enhance its efficiency. In the past, due to the constraint of the high power consumption of RF transceivers and low efficiency of 2.4-GHZ power conversion systems, RF harvesting systems are rarely employed in portable electronic devices. As the advance of CMOS RF design techniques, the power consumption is as low as 40 Joules/day and enables the potential development of 2.4-GHZ RF power conversion system. This project will focus on the following four topics: 1) RF-input-power aware amplifier 2) high efficient RF rectifiers 3) integration of a 2.4-GHz RF transceiver with power harvesting systems (Due to the limit of this one-year project, working item 3 would be completed if we can get the related project grant from other institutions later)整流器能量再生放大器射頻收發機Rectifiersenergy harvestingamplifiertransceiver