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In this paper, we present a mixer implemented in a 130 nm BiCMOS technology dedicated to 77 GHz automotive radar applications. The architecture is based on a double-balanced Gilbert cell with integrated transformer-based Baluns. Interconnections between devices, capacitor accesses and Tee-junctions are modeled using EM software in order to improve the simulation accuracy. The measurement results of...
A novel resistive negative feedback wideband low-noise amplifier (LNA) with feedforward noise and distortion cancelation is presented in this paper. In comparison to conventional resistive negative feedback LNA's the proposed LNA circuit shows improved performance parameters including voltage gain, noise figure (NF) and input-referred third-order intercept point (IIP3). Especially for wideband LNA...
Direct injection locking applied to a ring oscillator results in a divide-by-7 frequency divider circuit with a 22% locking range, from 4.1 to 5.1 GHz. The 38 × 31 μm2 65 nm CMOS prototype draws 430 μA from a 1.2 V supply. The output phase noise tracks the reference's one with the expected 17 dB difference at small offsets, settling to a -133dBc/Hz floor at larger offsets. The integrated rms jitter...
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