Title :
A low power UWB direct conversion receiver with pulse detectors
Author :
Chen, Caixia ; Do, Manh Anh ; Yeo, Kiat Seng ; Boon, Chirn Chye
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
This paper presents a low power direct conversion UWB receiver with a pulse detector designed for operation in 3 UWB lower bands from 3.1 to 5 GHz. The IC is implemented using the 0.18-¿m RF CMOS technology with 1.8 V voltage supply. The proposed Low Noise Amplifier (LNA) has a variable gain optimized for low power consumption. The dc power consumption of the LNA is 7.1 mW for the minimum gain of 24 dB and 12.85 mW for the maximum gain of 40 dB within the 3.1-5.0 GHz band. Quadrature zero-IF down conversions and rectifications are used to detect the UWB pulses. An S-QVCO is used to generate the local oscillator frequency for each subband. The total power consumption of the receiver is 21.9 mW for the LNA gain of around 30 dB.
Keywords :
CMOS integrated circuits; low noise amplifiers; low-power electronics; microwave receivers; radio receivers; ultra wideband communication; voltage-controlled oscillators; RF CMOS technology; S-QVCO; UWB direct conversion receiver; UWB lower bands; bandwidth 3.1 GHz to 5.0 GHz; dc power consumption; local oscillator frequency; low noise amplifier; low power consumption; power 7.1 muW; pulse detectors; quadrature zero-IF down conversions; rectifications; size 0.18 mum; variable gain; voltage 1.8 V; CMOS integrated circuits; CMOS technology; Detectors; Energy consumption; Gain; Integrated circuit noise; Pulse amplifiers; Radio frequency; Radiofrequency integrated circuits; Voltage; LNA; UWB receiver; direct conversion; mixer; rectifiler;
Conference_Titel :
SoC Design Conference (ISOCC), 2009 International
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5034-3
Electronic_ISBN :
978-1-4244-5035-0
DOI :
10.1109/SOCDC.2009.5423791
