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In this paper, a two-stage low-noise amplifier (LNA) designed for V-band applications is presented. Both stages are the common source-common gate (CS-CG) cascoded topologies with inductive degeneration structure for minimizing the noise figure (NF). This proposed LNA is implemented in a GaAs 0.15μm pHEMT process technology, which achieves a peak gain of 12.1 dB, a NF of 5.456 dB, and an input P1dB...
A V-band sub-harmonic mixer with an integrated frequency doubler and a 180o out-of-phase splitter using standard 0.13 μm CMOS technology is reported. The sub-harmonic mixer comprises a current-reused bleeding mixer, a baseband amplifier, a 180° (Wilkinson-power-divider-based) out-of-phase splitter, and a frequency doubler. The mixer consumed 31.5 mW and achieved input return loss at RF port better...
A 60-GHz receiver front-end with an integrated 180° out-of-phase Wilkinson power divider using standard 0.13 μm CMOS technology is reported. The receiver front-end comprises a wideband low-noise amplifier (LNA) with 12.4-dB gain, a current-reused bleeding mixer, a baseband amplifier, and a 180° out-of-phase Wilkinson power divider. The receiver front-end consumed 50.2 mW and achieved input return...
A 53.5-62-GHz wideband CMOS low-noise amplifier (LNA) with excellent phase linearity property is reported. Current-sharing technique is adopted to reduce power dissipation. The LNA (STD LNA) consumed 29.1 mW and achieved input return loss (S11) of -10.3~ -19.5 dB, output return loss (S22) of -13.8~ -27.8 dB, forward gain (S21) of 8.1~ 11.1 dB, and reverse isolation (S12) of -49.9~ -60.2 dB over the...
A 21-27-GHz wideband low-noise amplifier (LNA) with state-of-the-art phase linearity property (group-delay-variation is only plusmn8.1 ps across the whole band) using standard 0.18 mum CMOS technology is reported for the first time. To achieve high and flat gain and small group-delay-variation at the same time, the inductive series-peaking technique was adopted in the output of each stage for bandwidth...
In this letter, a phase feedforward control (PFFC) for a single-phase boost-type switching-mode rectifier is addressed. In the conventional input voltage feedforward loop, the feedforward signal is fixed regardless of the load level. The proposed phase feedforward signal adjusts according to the load level without sensing the load current. The simulated and experimental results also demonstrate the...
A 3.1-10.6-GHz ultra-wideband low-noise amplifier (UWB LNA) with excellent phase linearity property (group-delay-variation is only plusmn16.7 ps across the whole band) using standard 0.13 mum CMOS technology is reported. To achieve high and flat gain and small group-delay-variation at the same time, the inductive peaking technique is adopted in the output stage for bandwidth enhancement. The UWB LNA...
For implantable biosensor applications which require a low-cost signal processing unit that features ultra-low power and low-voltage capability as well, this paper proposes a solution by merging switched-opamp technique and foreground digital calibration into a single 10-bit ADC. Utilization of the switched-opamp technique allows for low supply operation down to 0.7 V. The insufficient gain associated...
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