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High-linearity wideband transmitter with a high linearity Mixer and RF-PGA is proposed for 802.1af/ah long-range Wi-Fi standards. The transmitter is direct conversion architecture while supporting 1/2/4/6/8/16 MHz signal bandwidth for 802.11af/ah. Implemented in a 40-nm CMOS process with the chip size of 1.0 mm × 1.9 mm, the full transmitter shows a conversion gain range of 31.5 dB with 0.5 dB step...
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