| Summary: | 碩士 === 國立臺北科技大學 === 電腦與通訊研究所 === 99 === The microwave power transmission system is used to wireless power transmission. In proposed wireless power transmission system, the data link band and communication band are located at 433 MHz and 2.4 GHz, respectively. The frequency band selection is suggested by Friis formula. For PCB area reduction, the modified Yagi-Uda antenna is proposed.
There are a transmitter and a receiver in proposed microwave power transmission system. Both TX and RX have a Moxon antenna and a coupler. Besides, a high output power amplifier and a RF- DC rectifier are included in transmitter and receiver, respectively. The real output power of transmitter and input power of receiver could be measured from output port of coupler.
For auto- power detection purpose, the 2.4 GHz sensor node is used in this work. When the RF power is received, the RF power will be detected by built-in ADC of 2.4 GHz sensor node. And this information will be transmitted to receiver of data- link system. Finally, this information will be processed by C# and presented on PC.
|
|---|
