Title :
A 0.18/spl mu/m RF CMOS ultra wide band transmitter front end RFIC
Author :
Zhao, Jun ; Raman, Sanjay
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA
Abstract :
This paper presents a 0.18mum RF CMOS ultra wide band (UWB) transmitter front end RFIC for wireless sensor network applications. The proposed UWB transmitter is designed to generate a bandwidth (-10dB) of more than 1 GHz at center frequencies of 4 GHz or 8 GHz, in the form of 1ns gated wideband pulses with DBPSK/BPSK modulation. Two single-band prototype transmitters are designed and fabricated as part of multi-band UWB transmitter under development. Wideband phase-locked loops (PLL) are integrated into the transmitter design targeting a single chip solution. A novel pulse generator control circuit has been demonstrated to generate the desired 1ns pulses. The 4 GHz integrated transmitter chip generates an output power of -6.5dBm from its buffered VCO output and consumes a current of 14mA
Keywords :
CMOS integrated circuits; MMIC; differential phase shift keying; integrated circuit design; phase locked loops; pulse generators; transmitters; ultra wideband communication; wireless sensor networks; 0.18 micron; 1 ns; 14 mA; 4 GHz; 8 GHz; CMOS ultra wideband transmitter; DBPSK modulation; pulse generator control circuit; radiofrequency integrated circuits; voltage controlled oscillators; wideband phase-locked loop; wireless sensor network; Phase locked loops; Power generation; Pulse circuits; Pulse generation; Pulse modulation; Radio frequency; Radiofrequency integrated circuits; Transmitters; Ultra wideband technology; Wireless sensor networks;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9572-7
DOI :
10.1109/RFIC.2006.1651202
