TY - GEN
T1 - An 18-32 GHz ultra wideband low-noise amplifier with a low variation of group delay
AU - Seo, Bohee
AU - Jeon, Sanggeun
PY - 2012
Y1 - 2012
N2 - This paper presents an 18-to-32-GHz ultra wideband (UWB) low-noise amplifier (LNA) in a bulk 0.13-μm CMOS technology. The LNA consisting of four stages exhibits a flat gain of 14.5 ± L.5 dB over the entire 18-to-32 GHz and a noise figure of 5.5 ± 0.4 dB at K-band (18 to 26.5 GHz). Moreover, the group delay variation is suppressed as low as 63.5 ± 6.5 ps over 21-26 GHz. The wideband characteristics of gain and group delay are achieved by a slope offset technique. The individual stages are designed, such that the transfer function of each stage shows its peak at different frequencies by adjusting the output resonance network. The pole-zero analysis is performed to validate the slope offset technique and to provide a practical design guideline. Due to the wideband performance of flat gain and group delay, the proposed LNA is suitable for UWB communication or radar applications that demand an instantaneously wide fractional bandwidth.
AB - This paper presents an 18-to-32-GHz ultra wideband (UWB) low-noise amplifier (LNA) in a bulk 0.13-μm CMOS technology. The LNA consisting of four stages exhibits a flat gain of 14.5 ± L.5 dB over the entire 18-to-32 GHz and a noise figure of 5.5 ± 0.4 dB at K-band (18 to 26.5 GHz). Moreover, the group delay variation is suppressed as low as 63.5 ± 6.5 ps over 21-26 GHz. The wideband characteristics of gain and group delay are achieved by a slope offset technique. The individual stages are designed, such that the transfer function of each stage shows its peak at different frequencies by adjusting the output resonance network. The pole-zero analysis is performed to validate the slope offset technique and to provide a practical design guideline. Due to the wideband performance of flat gain and group delay, the proposed LNA is suitable for UWB communication or radar applications that demand an instantaneously wide fractional bandwidth.
KW - CMOS
KW - Flat group delay
KW - Low-noise amplifier
KW - Ultra wideband
UR - http://www.scopus.com/inward/record.url?scp=84866775741&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866775741&partnerID=8YFLogxK
U2 - 10.1109/MWSYM.2012.6259741
DO - 10.1109/MWSYM.2012.6259741
M3 - Conference contribution
AN - SCOPUS:84866775741
SN - 9781467310871
T3 - IEEE MTT-S International Microwave Symposium Digest
BT - IMS 2012 - 2012 IEEE MTT-S International Microwave Symposium
T2 - 2012 IEEE MTT-S International Microwave Symposium, IMS 2012
Y2 - 17 June 2012 through 22 June 2012
ER -