A fully integrated pulse width modulator for Class-S power amplifiers

IEICE Electronics Express

Jaeho Jung¹  Bonghyuk Park¹  Kwangchun Lee¹ 

[1] Electronics and Telecommunications Research Institute

关键词: pulse width modulator;    Class-S;    power amplifier;    PAPR;   

DOI  :  10.1587/elex.10.20120929

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(6)A fully integrated pulsewidth modulator for Class-S power amplifiers is presented. It consists of a triangular signal generator, a comparator and output buffer. The HBT BiCMOS design of PWM circuit is applied to the LTE frequency range, which converts digitally modulated 955MHz RF carrier with 2.87GHz sampling clock. This PWM shows an EVM 6.6%, a differential output voltage swing 1.35Vp-p with 62.7mA dissipating at 3.3V power supply.

【 授权许可】

Unknown