TY - JOUR
T1 - A DC-2.5 GHz high linearity CMOS attenuator in a 0.18μm technology
AU - Abdalla, Ibrahim L.
AU - Jia, Hongting
AU - Pokharel, Ramesh K.
N1 - Funding Information:
This research was supported by E-JUST Research Center at Kyushu University. The authors would like to acknowledge Prof. H. Kanaya for his help in performing measurements.
Publisher Copyright:
© 2018 The Authors. Published by Elsevier B.V.
PY - 2018
Y1 - 2018
N2 - A CMOS attenuator with high linearity has been designed and measured in a 0.18-μm CMOS process, to be used for a variable gain amplifier of RF wireless transceiver. The design is based on four cascaded Bridge-T attenuator stages that are consecutively activated to adjust the attenuation level and improve linearity. The design operates in the frequency band of DC-2.5 GHz with 2 - 3.5 dB insertion loss and 14 dB maximum attenuation in the entire frequency range. Measured and simulated results are in good agreement over the frequency band of interest. Measured worst case S11 and S22 are -10 and -8.8 dB, respectively, across the frequency band. The measured 1-dB compression point is +22 dBm at maximum-attenuation.
AB - A CMOS attenuator with high linearity has been designed and measured in a 0.18-μm CMOS process, to be used for a variable gain amplifier of RF wireless transceiver. The design is based on four cascaded Bridge-T attenuator stages that are consecutively activated to adjust the attenuation level and improve linearity. The design operates in the frequency band of DC-2.5 GHz with 2 - 3.5 dB insertion loss and 14 dB maximum attenuation in the entire frequency range. Measured and simulated results are in good agreement over the frequency band of interest. Measured worst case S11 and S22 are -10 and -8.8 dB, respectively, across the frequency band. The measured 1-dB compression point is +22 dBm at maximum-attenuation.
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U2 - 10.1016/j.promfg.2018.03.086
DO - 10.1016/j.promfg.2018.03.086
M3 - Conference article
AN - SCOPUS:85049241254
SN - 2351-9789
VL - 22
SP - 591
EP - 597
JO - Procedia Manufacturing
JF - Procedia Manufacturing
T2 - 11th International Conference on Interdisciplinarity in Engineering, INTER-ENG 2017
Y2 - 5 October 2017 through 6 October 2017
ER -