Title :
A Low-Power CMOS Low-IF Receiver Front-End for 2450-MHz Band IEEE 802.15.4 ZigBee Standard
Author :
Sarhangian, Saeed ; Atarodi, S. Mojtaba
Author_Institution :
Micro Electron. Res. & Dev. Center of Iran, Tehran
Abstract :
Design of a novel RF front-end structure for 2450-MHz band IEEE 802.15.4 ZigBee standard in a 0.18-mum CMOS process is presented. Utilizing a common-gate structure instead of conventional inductive degenerated common source amplifier, low noise figure is achieved with LNA bias current as low as 1mA. An analytical method is presented to minimize the noise figure of proposed common-gate LNA structure. Together with the LNA, an active Gilbert cell mixer is adopted to convert the RF signal to 2MHz IF signal. Employing an enhanced current re-use structure, simulation results show a conversion gain of 37.7dB, a Noise figure of 5.9dB and an IIP3 of -4dBm for the front-end. The RF front-end dissipates only 2.2mA from 1.8V supply.
Keywords :
CMOS integrated circuits; IEEE standards; low noise amplifiers; low-power electronics; mixers (circuits); receivers; 0.18 micron; 1.8 V; 2 MHz; 2.2 mA; 2450 MHz; 37.7 dB; 5.9 dB; CMOS process; IEEE 802.15.4; LNA bias current; RF front-end structure; ZigBee standard; active Gilbert cell mixer; common source amplifier; low-power CMOS low-IF receiver; CMOS process; CMOS technology; Energy consumption; Impedance matching; Inductors; Low-noise amplifiers; Noise figure; Radio frequency; Standards development; ZigBee;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378556
