Title :
An 84 dB-gain-range and 1 GHz-bandwidth variable gain amplifier using gain flattening capacitors for multi-gigabit radio
Author :
Kitamura, R. ; Tsukizawa, T. ; Saito, Nobuo
Author_Institution :
R&D Div., Panasonic Corp., Yokohama, Japan
Abstract :
A 1 GHz wide-bandwidth digitally-controlled variable gain amplifier (VGA) with 84 dB wide gain range is presented for 60 GHz short range wireless systems. The VGA employs digitally-controlled resistors and gain flattening capacitors (GFCs) which improve in-band gain flatness. The VGA is fabricated in 90 nm CMOS. The measured result shows 84.3 dB gain tuning range from -25.3 dB to 59 dB with a 3 dB bandwidth of 1.0 GHz.
Keywords :
CMOS digital integrated circuits; capacitors; digital control; radio receivers; radiofrequency amplifiers; resistors; CMOS; GFC; bandwidth 1 GHz; bandwidth digitally controlled VGA; bandwidth variable gain amplifier; digitally-controlled resistor; frequency 60 GHz; gain 80 dB; gain flattening capacitor; inband gain flatness; multigigabit radio; short range wireless system; Bandwidth; CMOS integrated circuits; Gain; Gain measurement; Receivers; Resistors; Tuning; 60GHz; CMOS; Variable gain amplifier (VGA); digitally-controlled; wide gain range; wide-bandwidth;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2013 IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-2929-3
Electronic_ISBN :
2164-2958
DOI :
10.1109/RWS.2013.6486694
