An energy detection receiver for non-coherent IR-UWB

A non-coherent receiver for impulse radio ultra-wide band(IR-UWB)is presented.The proposed receiver front-end consists of a high gain LNA,a high frequency detector and an intermediate frequency(IF)amplifier to amplify the recovered signal and drive an external test instrument.To meet the requirements of high gain and a low noise figure(NF)under moderate power consumption for the LNA,capacitor cross coupled(CCC)and current reuse techniques were adopted.The detector consists of a squarer and an integrator.The overall circuit consumes 41.2mA current with a supply voltage of 1.8 V at a 400 MHz pulse rate.The resulting energy efficiency is 0.19 nJ/pulse.A chip prototype is implemented in 0.18-μm CMOS.The die area is 2.1×1.4 mm~2 and the active area is 1.7×0.98 mm~2.     

一个用于非相干脉冲超宽带的能量检测接收机

本文提出一个用脉冲超宽带体制的非相干接收机 。提出的接收机前端包含高增益地噪声放大器,一个高频检波器以及用于放大检波后信号的中频放大器。低噪声放大器采用了电容交叉耦合和电流复用技术用于在适当功耗下获得高增益和低噪声性能。检波器部分包含平方器和积分器。在400MHz的脉冲速率下,整个电路在1.8V电源下消耗电流41.2mA。最终的能量利用率为0.19nJ每脉冲。芯片在0.18 um CMOS工艺下实现,芯片面积为2.11.4 mm2 ,核心面积为1.70.98 mm2.