A fully integrated 2.4 GHz CMOS high power amplifier using parallel class A&B power amplifier and power-combining transformer for WiMAX application |
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| Authors: | Ahmad Rahati Belabad Nasser Masoumi Shahin J. Ashtiani |
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| Affiliation: | School of Electrical and Computer Eng., Department of Electronics, RF Circuits and Systems Lab., College of Engineering, University of Tehran, Tehran, Iran |
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| Abstract: | ![]()
A new structure integrated power amplifier with watt-level output power is presented in a standard 0.18 μm CMOS process for WiMAX applications. A parallel cascode class A&B power amplifier with optimized widths is proposed to increase linearity and efficiency simultaneously. A novel interleaved PCT power combiner is proposed for increasing output power that combines output current of two similar class A&B power amplifiers. Proposed interleaved transformer heightens coupling factor compared to typical transformer. |
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| Keywords: | CMOS Power amplifier (PA) Parallel class A& B PA Transformer WiMAX |
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