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The overshooting effect, which is induced by the input-to-output coupling capacitance, has an significant effect on CMOS gate delay with the scaling of CMOS technology. In this paper, an effective analytical model is proposed to calculate the overshooting time of multiple-input gates. The proposed model is verified having a good agreement with SPICE simulation results.
A 0.18um reconfigurable multi-band CMOS power amplifier (PA) is presented in this paper. The PA can operate at GSM, GPS and WLAN bands simultaneously or individually by using the reconfigurable matching network. This PA exhibits high performance including up to 29 dB power gain, 28 power-added efficiency and less than 50 mW power consumption under 1.8 V power supply
A 0.18um CMOS Reconfigurable Multi-band Multi-gain LNA is presented in this paper. The LNA can operate at GSM, GPS and WLAN bands simultaneously or individually by using the programmable switches. This LNA exhibits high performance including up to 19 dB voltage gain, 1.9–4.5 dB noise figure and less than 30 mW power consumption under 1.8 V power supply.
A high efficiency, linear, adaptive radio frequency (RF) power amplifier (PA) is presented. The working frequency is about 900MHz. The circuit employs a self-bias cascode for a higher performance and an adaptive bias to enhance linear and efficiency of the PA as well. This power amplifier is designed with the SMIC 0.18um CMOS RF process. The power supply is 1.8V. The simulation results show that the...
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