Low-power UWB LNA with common-gate and current-reuse techniques

被引：33

作者：

Lee, J. -Y. ^{[1
]}

Park, H. -K. ^{[1
]}

Chang, H. -J. ^{[1
]}

Yun, T. -Y. ^{[1
]}

机构：

[1] Hanyang Univ, Dept Elect & Comp Engn, Seoul 133791, South Korea

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2012年 / 6卷 / 07期

关键词：

LOW-NOISE AMPLIFIER; BAND; CASCODE;

D O I：

10.1049/iet-map.2011.0415

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A common-gate (CG) low-noise amplifier (LNA) that uses the current-reuse technique and is intended to achieve both ultra-wideband and low-power consumption is proposed. The CG amplifier enables wide-band input matching with low transconductance and low frequency-independent noise figure (NF) when employed at the input stage compared with the common-source amplifier. The current-reuse technique is adopted in order to reduce the power dissipation while achieving reasonable power gain. In addition, a shunt and series peaking technique is adopted to obtain wide bandwidth. The proposed LNA achieves a 3-dB bandwidth from 2.4 to 11.2 GHz, a maximum power gain of 14.8 dB, a minimum NF of 3.9 dB and a third-order input intercept point of -11.5 dBm while consuming 3.4 mW from a 1.5 V supply. A 0.18-mu m CMOS process is utilised to fabricate the LNA.

引用

页码：793 / 799

页数：7