JICCE (한국정보통신학회)
Current Result Document :
| 한글제목(Korean Title) |
Development of Transmitter/Receiver Front-End Module with Automatic Tx/Rx Switching Scheme for Retro-Reflective Beamforming |
| 영문제목(English Title) |
Development of Transmitter/Receiver Front-End Module with Automatic Tx/Rx Switching Scheme for Retro-Reflective Beamforming |
| 저자(Author) |
Young Seek Cho
|
| 원문수록처(Citation) |
VOL 17 NO. 03 PP. 0221 ~ 0226 (2019. 09) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
In this work, a transmitter/receiver front-end module (T/R FEM) with an automatic Tx/Rx switching scheme for a 2.4 GHz microwave power transfer is developed for a retro-reflective beamforming scheme. Recently, research on wireless power transfer techniques has moved to wireless charging systems for mobile devices. Retro-reflective beamforming is a good candidate for tracking the spatial position of a mobile device to be charged. In Tx mode, the T/R FEM ge88nerates a minimum of 1 W. It also comprises an amplitude and phase monitoring port for transmitting RF power. In Rx mode, it passes an Rx pilot signal from a mobile device to a digital baseband subsystem to recognize the position of the mobile device. The insertion loss of the Rx signal path is 4.5 dB. The Tx and Rx modes are automatically switched by detecting the Tx input power. This T/R FEM is a design example of T/R FEMs for wireless charging systems based on a retro-reflective beamforming scheme. |
| 키워드(Keyword) |
Automatic switching
Beamforming
Microwave power transfer
Retro-reflective
Wireless charging
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| 파일첨부 |
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