| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
A purpose of this research and development is to develop a battery-less sensor with wireless power transfer via microwaves. As a result, 1) I succeeded in developing a suitable rectenna, rectifying antenna, for the battery-less sensor application. Especially, I succeeded in developing a RF-DC conversion rectifier of the recttena with recollection circuit of a reflected microwave which can stabilize the RF-DC conversion efficiency with any connected sensor and also developing a rectifier with DC-DC converter (RF-DC-DC conversion rectifier) whose maximum efficiency keeps high in wide range of connected load, 2) I succeeded in developing the battery-less sensor with wireless power transfer via intermitted (pulse) microwaves which can suppress interference between the wireless power transfer via microwave and wireless communication.
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