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

fYear

2013

Firstpage

220

Lastpage

222

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Symposium (RWS), 2013 IEEE

Conference_Location

Austin, TX

ISSN

2164-2958

Print_ISBN

978-1-4673-2929-3

Electronic_ISBN

2164-2958

Type

conf

DOI

10.1109/RWS.2013.6486694

Filename

6486694