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A Design of Ultra Wide Band Single-to-Differential Gain Controlled Low Noise Amplifier Using 0.18 um CMOS

0.18 um CMOS 공정을 이용한 UWB 단일 입력-차동 출력 이득 제어 저잡음 증폭기 설계

  • Published : 2008.03.31

Abstract

A differential-gain-controlled LNA is designed and implemented in 0.18 um CMOS technology for $3.1{\sim}4.8GHz$ UWB system. In high gain mode, measurements show a differential power gain of $14.1{\sim}15.8dB,\;13.3{\sim}15dB$, respectably, an input return loss higher then 10dB, an input IP3 of -19.3 dBm, a noise figure of $4.85{\sim}5.09dB$, while consuming only 19.8 mW of power from a 1.8V DC supply. In low gain mode, measurements show a differential power gain of $-6.1{\sim}-4.2dB,\;-7.6{\sim}-5.6dB$, respectably, an input return loss higher then 10dB, an input IP3 of -1.45 dBm, a noise figure of $8.8{\sim}10.3dB$, while consuming only 5.4mW of power from a 1.8V DC supply.

Keywords

UWB;LNA;Single-to-Differential;Gain Controlled

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