Faculty of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran
Abstract
A low voltage cascode LNA with high linearity designed in 0.18μm RF CMOS technology is presented, in which magnetic coupling has been adopted in 45GHz frequency band. Magnetic coupling has been used to decrease the supply voltage, as well as the reduction of drain nonlinear conductivity in the input cascode transistor. Using common source topology and adding an auxiliary signal path to the output, nonlinearity of the trans-conductance of input transistor has been improved. Input bandpass network and output shunt-picking topology has been used to perform the wideband matching in the amplifier input and output. The proposed two-stage LNA reveals 9dB small signal gain and 4dB noise figure at 45GHz center frequency, at 1MHz frequency offset. IIP3 of the designed LNA is +3.8dBm, presenting 7dB improvement, in comparison with the cascade structure. The amplifier has 3-dB bandwidth of 10GHz, where the return loss in the entire band is better that 10dB. The supply voltage of the designed LNA is 0.6V and power consumption is 6.8mW.
Nazari, M., & Yavand Hasani, J. (2017). Analysis and Design of Low-Voltage High Linearity CMOS Cascode LNA with Magnetic Coupled Technique for 45GHz Application. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 47(2), 751-760.
MLA
M. Nazari; J. Yavand Hasani. "Analysis and Design of Low-Voltage High Linearity CMOS Cascode LNA with Magnetic Coupled Technique for 45GHz Application". TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 47, 2, 2017, 751-760.
HARVARD
Nazari, M., Yavand Hasani, J. (2017). 'Analysis and Design of Low-Voltage High Linearity CMOS Cascode LNA with Magnetic Coupled Technique for 45GHz Application', TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 47(2), pp. 751-760.
VANCOUVER
Nazari, M., Yavand Hasani, J. Analysis and Design of Low-Voltage High Linearity CMOS Cascode LNA with Magnetic Coupled Technique for 45GHz Application. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 2017; 47(2): 751-760.
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