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An Ultra Wide Band (UWB) Low Noise Amplifler (LNA) for 802.15.4a UWB PHY (physical layer) is proposed. The amplifler is designed using IHP Microelectronis CMOS 0.25"m technology for lower price. The LNA area, power, and performance was optimized using the Genetic Algorithm (GA). The optimization goals included inductance values, power consumption, and performance in the frequency domain using S-parameters, then flne tuned in the time domain using the reference UWB pulses of the 802.15.4a standards. The LNA consumes around 10mW excluding the output bufier stage, has a gain of 11 to 15dB, a 1dB compression point of i9dBm, and flve inductors with a total value around 10nH.

AREA AND POWER OPTIMIZATION OF 802.15.4A UWB PULSE LOW NOISE AMPLIFIERS BY GENETIC ALGORITHMS