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| This paper represents a simple prescription of LNA and improved new active dual balanced mixer for 802.11a WLAN with 0.18um CMOS technology. The conversion voltage gain of the LNA achieves 14.8dB, S11 is -20.8dB, S22 is -23.1dB and noise figure is 1.38dB, as shown in the simulation results with 1.8 V supply voltage at 5.8GHz, respectively. The power dissipation is 26.3mW. The die size of the LNA is 0.9mm*0.67mm. The RF, LO and IF frequency applied to the mixer are 5.8 GHz, 4.6 GHz and 1.2 GHz, respectively. This mixer achieves a conversion gain of -2.4dB, as well as a single-sideband noise figure (SSB NF), 1dB compression point, third-order input intercept point(IIP3) and power consumption of 12.1dB, 3.68dBm, 12.78dBm and 22.3mW at 5.8GHz, respectively. The die size of the mixer is 1.4mm*1.1mm. |
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| Keywords:LNA; MIXER; CMOS; WLAN |
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