CMOS phase shifted transmitters for 4G wireless systems

被引：0
|
作者：
Hamedi-Hagh, S [1 ]
Salama, CAT [1 ]
机构：
[1] Univ Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
来源：
2004 IEEE 15TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-4, PROCEEDINGS | 2004年
关键词：
D O I：
10.1109/PIMRC.2004.1370859
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A novel Phase Shifted (PS) wireless transmitter architecture is presented in this paper. The PS transmitter employs switching power amplifiers, operates without mixers and provides an intermodulation distortion free output spectrum making it a suitable choice for mobile communication systems. The RF blocks of the PS transmitter include a local oscillator, phase shifters, switching class F power amplifiers and wideband output combiners. The PS transmitter, implemented in a standard 0.18 mum CMOS technology, occupies an area of 5mm(2). It operates from a 1V supply and provides 40dBc adjacent channel power ratio for output bandwidths up to 50 MHz at 8GHz. The combined class F PAs in the PS transmitter provide 20dBm output power with a 38% power added efficiency.
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页码：175 / 179
页数：5
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