Design and Analysis of a Ka-band Injection-locked QVCO for IQ phase Calibration
- Research field:mm-Wave circuit technology, mm-Wave systems, simulation, layout
In modern RF direct-conversion IQ transceiver design, any amplitude and phase imbalance at I- /Q- path result in degradation in error vector magnitude (EVM). A robust and tunable LO quadrature generator is desirable since there are process, voltage and temperature (PVT) variations at the IC fabrication.
A tunable LO quadrature generator can be realized using the injection-locked quadrature voltage-controlled oscillator (IL-QVCO). The aim of this thesis is to develop a Ka-band IL-QVCO using 0.13-µm SiGe BiCMOS process. Theoretical analysis would be focused on the mechanism of injection-locking.
-Circuit desgin and simulation with Cadence SpectreRF or Keysight ADS
-Parasitics extraction using QRC and EM simulation using Momentum
-Layout in Cadence Virtuoso (DRC, LVS check)