Title :
A 3-8 GHz RF Receiver Front-End for Multi-Band UWB Wireless System
Author :
Hsiung, Zi-Hao ; Wu, Hui-I ; Jou, Christina F.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu
Abstract :
This paper demonstrates a RF receiver front end circuit for multi-band orthogonal frequency division multiple access (MB-OFDM) using standard 0.18um complementery metal oxide semiconductor (CMOS) technology. The receiver front end includes a low-noise amplifier and a down conversion mixer. The proposed LNA uses transistor´s intrinsic capacitor Cgd and only one inductor as input matching network to achieve wideband impedance matching. And the proposed mixer uses folded current reused architecture to decrease supply voltage and enhance conversion power gain effectively. This wideband front end circuit achieves 19-21.5 dB of power gain and 4.3-6.2 dB of double-sideband (DSB) noise figure from 3.1GHz to 8 GHz with IF=100 MHz. The simulated core current consumption was 13.1 mA from a 1.5 V supply, with a compact size of 1.16 mm2.
Keywords :
CMOS integrated circuits; OFDM modulation; capacitors; frequency division multiple access; impedance matching; inductors; low noise amplifiers; mixers (circuits); radio receivers; ultra wideband communication; RF receiver front end circuit; complementery metal oxide semiconductor technology; conversion power gain; double-sideband noise figure; down conversion mixer; folded current reused architecture; inductor; input matching network; intrinsic capacitor; low-noise amplifier; multiband UWB wireless system; multiband orthogonal frequency division multiple access; simulated core current consumption; supply voltage; wideband front end circuit; wideband impedance matching; CMOS technology; Capacitors; Circuits; Frequency conversion; Impedance matching; Inductors; Low-noise amplifiers; Mixers; Radio frequency; Wideband; CMOS; Folded Current Reused; LNA; MB-OFDM; Ultra wide-band; mixer;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4555153