An Energy-Detector for Noncoherent Impulse-Radio UWB Receivers

被引：34

作者：

Gerosa, Andrea ^{[1
]}

Solda, Silvia ^{[1
]}

Bevilacqua, Andrea ^{[1
]}

Vogrig, Daniele ^{[1
]}

Neviani, Andrea ^{[1
]}

机构：

[1] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2009年 / 56卷 / 05期

关键词：

Energy detector; noncoherent receivers; squaring circuits; ultra-wideband (UWB) impulse radio; FRONT-END; CMOS; ARCHITECTURE; TRANSCEIVER;

D O I：

10.1109/TCSI.2009.2016125

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：

This study proposes an energy detector for a noncoherent impulse-radio UWB receiver, designed in a 0.18-mu m CMOS technology. The squaring functionality is realized exploiting the quadratic characteristic of MOS transistors, and the deviation from such a characteristic due to short channel effects and device mismatch is carefully considered in the paper. The squared signal is integrated using a Gm-C integrator that is interfaced with the squarer using a flipped voltage follower current sensor as a current to voltage converter. The proposed circuit dissipates 5.4 mW for a receiver sensitivity at the antenna of -89 dBm. Synchronization is demonstrated at the system level and some considerations on robustness to narrowband interferers are presented.

引用

收藏

页码：1030 / 1040

页数：11

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