An RF CMOS transmitter integrating a power amplifier and a transmit/receive switch for 802.11b wireless local area network applications
2003
A transmitter integrating a passive FET Quad up-conversion mixer, a power amplifier with output P/sub 1dB/ of 23 dBm, a transmit/receive (T/R) switch with an insertion loss of 1.1 dB and output P/sub 1dB/ of 21 dBm has been implemented in a 0.25-/spl mu/m foundry CMOS process. The transmitter at the output power level of 16.5 dBm is compliant to the 802.11b specifications at 11 Mbps. This circuit is the first 802.11b transmitter to have the entire function integrated including a PA and a T/R switch.
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