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Mix-and-match materials make better front ends
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CMOS integrated circuits - Electric impedance - Gain control - Global system for mobile communications - Integrated circuit manufacture - MESFET devices - Mixer circuits - Monolithic microwave integrated circuits - Phase locked loops - Power converters - Semiconducting gallium arsenide - Semiconducting silicon compounds;
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CMOS is the only technology that offers the prospect of a true single-chip radio for personal communications, the application that places the most stringent demands on the RF transceiver section. However, although prototype CMOS ICs can meet the specification for GSM power amplifiers at both 900 MHz and 1.811.9 GHz their efficiency still has some way to go to meet that of GaAs. Most vendors are adopting a mix-and-match approach, and many are now offering products based on more than one materials technology.
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