TY - JOUR
T1 - 38/60-GHz Dual-Frequency 3-Stage Transformer-Based Differential Inductor-Peaked Rectifier in 40-nm CMOS Technology
AU - Fang, Yun
AU - Hueber, Gernot
AU - Gao, Hao
PY - 2021/1/1
Y1 - 2021/1/1
N2 - This letter presents a 38/60-GHz dual-frequency band 3-stage transformer-based inductor-peaked differential rectifier in a 40-nm CMOS technology. The rectifier is used in a wirelessly powered receiver in a monolithic IoT transponder. Its sensitivity is a bottleneck for the transponder’s range. With the dual-frequency operating function, the wirelessly powered distance could be optimized based on the selected frequency band. In this letter, a new vertical integration transformer with a compact size is proposed and implemented to achieve stage-cascading, inductor peaking, and dual-frequency matching functions simultaneously. In addition, bulk-drain-connected transistors further improve the rectifier’s efficiency and sensitivity. In this combination, the 3-stage transformer-based inductor-peaked rectifier improves sensitivity at 38 and 60 GHz frequency bands. The 1-V sensitivity is −6 dBm at the 38–40-GHz frequency band and −5 dBm at 57–64-GHz frequency band. This mm-wave dual-band rectifier achieves the peak 1-V sensitivity of −7.8 dBm at 40 GHz.
AB - This letter presents a 38/60-GHz dual-frequency band 3-stage transformer-based inductor-peaked differential rectifier in a 40-nm CMOS technology. The rectifier is used in a wirelessly powered receiver in a monolithic IoT transponder. Its sensitivity is a bottleneck for the transponder’s range. With the dual-frequency operating function, the wirelessly powered distance could be optimized based on the selected frequency band. In this letter, a new vertical integration transformer with a compact size is proposed and implemented to achieve stage-cascading, inductor peaking, and dual-frequency matching functions simultaneously. In addition, bulk-drain-connected transistors further improve the rectifier’s efficiency and sensitivity. In this combination, the 3-stage transformer-based inductor-peaked rectifier improves sensitivity at 38 and 60 GHz frequency bands. The 1-V sensitivity is −6 dBm at the 38–40-GHz frequency band and −5 dBm at 57–64-GHz frequency band. This mm-wave dual-band rectifier achieves the peak 1-V sensitivity of −7.8 dBm at 40 GHz.
KW - Sensitivity
KW - Radio frequency
KW - Semiconductor device measurement
KW - Couplings
KW - Threshold voltage
KW - Windings
KW - Voltage measurement
UR - https://ieeexplore.ieee.org/document/9521562/
U2 - 10.1109/LSSC.2021.3107469
DO - 10.1109/LSSC.2021.3107469
M3 - Article
SN - 2573-9603
VL - 4
SP - 174
EP - 177
JO - IEEE Solid-State Circuits Letters
JF - IEEE Solid-State Circuits Letters
M1 - 9521562
ER -