TY - GEN
T1 - Bias-switched down-conversion mixer for flicker noise reduction in 28-nm CMOS
AU - Ciocoveanu, Radu
AU - Weigel, Robert
AU - Hagelauer, Amelie
AU - Issakov, Vadim
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/6/29
Y1 - 2018/6/29
N2 - This paper presents a modified Gilbert-cell mixer employing a novel biasing-scheme used to reduce the high Noise Figure, due to inherently high 1/f noise of MOS transistors. Switching the transistor from strong inversion to accumulation interferes with the self-correlation of the physical noisy process, which leads to a reduction in flicker noise. To illustrate this improvement, a comparison with a conventionally biased mixer is carried. Post-layout simulation results show that this mixer achieves a voltage conversion gain of 2.2 dB, a 1-dB compression point of 3 dBm and a 5 dB reduction in noise figure at 50 kHz, while it draws a current of 13 mA from a single 0.9 V supply. The occupied chip area is 0.5×0.94 mm2. According to author's knowledge this is the first time that bias switching technique is applied to a mixer at mm-wave frequencies.
AB - This paper presents a modified Gilbert-cell mixer employing a novel biasing-scheme used to reduce the high Noise Figure, due to inherently high 1/f noise of MOS transistors. Switching the transistor from strong inversion to accumulation interferes with the self-correlation of the physical noisy process, which leads to a reduction in flicker noise. To illustrate this improvement, a comparison with a conventionally biased mixer is carried. Post-layout simulation results show that this mixer achieves a voltage conversion gain of 2.2 dB, a 1-dB compression point of 3 dBm and a 5 dB reduction in noise figure at 50 kHz, while it draws a current of 13 mA from a single 0.9 V supply. The occupied chip area is 0.5×0.94 mm2. According to author's knowledge this is the first time that bias switching technique is applied to a mixer at mm-wave frequencies.
UR - http://www.scopus.com/inward/record.url?scp=85051039078&partnerID=8YFLogxK
U2 - 10.1109/WMCaS.2018.8400634
DO - 10.1109/WMCaS.2018.8400634
M3 - Conference contribution
AN - SCOPUS:85051039078
T3 - Proceedings of the 2018 Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2018
SP - 1
EP - 4
BT - Proceedings of the 2018 Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2018
Y2 - 5 April 2018 through 6 April 2018
ER -