A 2.4GHz Low Power ASK Transmitter for Wireless Capsule Endoscope Applications

作     者：韩书光 池保勇 王志华 

作者机构：清华大学电子工程系北京100084 清华大学微电子研究所北京100084 

基　　金：国家自然科学基金(批准号:60475018,60372021) 国家重点基础研究发展计划(批准号:G2000036508)资助项目~~ 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2006年第27卷第6期

页      码：988-993页

摘      要：A 2.4GHz ASK transmitter suitable for a low power wireless capsule endoscope system is presented. A mixer-based frequency up-conversion transmitter architecture is employed to achieve a high data rate. A pseudodifferential stacked class-A power amplifier using the current reuse technique is proposed to save power. The transmitter mainly includes two parts： a 20MHz ASK modulator based on a constant amplitude phase lock loop （PLL） and a direct up-conversion RF circuit. This design, implemented in a TSMC 0.25μm CMOS process, achieves a - 23. 217dBm output power with a data rate of 1Mbps and dissipates 3.17mA of current with a single 2.5V power supply.

主 题 词：wireless capsule endoscope amplitude shift keying PLL transmitter CMOS 

学科分类：0810[工学-土木类] 08[工学] 081001[081001] 0803[工学-仪器类] 

核心收录：

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