TY - JOUR
AU - Xuemei, Lei
AB - A CMOS RF (radio frequency) front-end for digital radio broadcasting applications is presented that contains a wideband LNA, I/Q-mixers and VGAs, supporting other various wireless communication standards in the ultra-wide frequency band from 200 kHz to 2 GHz as well. Improvement of the NF (noise figure) and IP3 (third-order intermodulation distortion) is attained without significant degradation of other performances like voltage gain and power consumption. The NF is minimized by noise-canceling technology, and the IP3 is improved by using differential multiple gate transistors (DMGTR). The dB-in-linear VGA (variable gain amplifier) exploits a single PMOS to achieve exponential gain control. The circuit is fabricated in 0.18-m CMOS technology. The S11 of the RF front-end is lower than 11.4 dB over the whole band of 200 kHz2 GHz. The variable gain range is 1242 dB at 0.25 GHz and 436 dB at 2 GHz. The DSB NF at maximum gain is 3.16.1 dB. The IIP3 at middle gain is 4.7 to 0.2 dBm. It consumes a DC power of only 36 mW at 1.8 V supply.
TI - Noise-canceling and IP3 improved CMOS RF front-end for DRM/DAB/DVB-H applications
JF - Journal of Semiconductors
DO - 10.1088/1674-4926/31/2/025006
DA - 2010-02-01
UR - https://www.deepdyve.com/lp/iop-publishing/noise-canceling-and-ip3-improved-cmos-rf-front-end-for-drm-dab-dvb-h-0xSkEEbsPY
SP - 025006
VL - 31
IS - 2
DP - DeepDyve
ER -