CMOS wireless phase-shifted transmitter
| Autor: | Sotoudeh Hamedi-Hagh, C.A.T. Salama |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Engineering
business.industry Amplifier Transmitter RF power amplifier Electrical engineering Adjacent channel power ratio Transistor array Transmitter power output CMOS Hardware_GENERAL Hardware_INTEGRATEDCIRCUITS Electronic engineering Electrical and Electronic Engineering business Intermodulation |
| Zdroj: | IEEE Journal of Solid-State Circuits. 39:1241-1252 |
| ISSN: | 0018-9200 |
| DOI: | 10.1109/jssc.2004.831786 |
| Popis: | A fully integrated phase-shifted (PS) transmitter 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, and switching class-F power amplifiers with wide-band matching networks. The PS transmitter is implemented in a standard single-polysilicon, six-metal 0.18-/spl mu/m CMOS technology and occupies an area of 3 mm/sup 2/. It operates from a 1-V supply and provides better than 42 dBc adjacent channel power ratio with an output bandwidth of 50 MHz at 8 GHz. The PS transmitter RF front-end provides 22 dBm of average output power with a 38% average power added efficiency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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