Institut für Hochfrequenztechnik und Elektronik (IHE)

Design and Analysis of a Ka-band Injection-locked QVCO for IQ phase Calibration

  • Forschungsgebiet:mm-Wave circuit technology, mm-Wave systems, simulation, layout
  • Typ:Masterarbeit
  • Datum:Anytime
  • Betreuer:

    M.Sc Tsung-Ching Tsai

  • Zusatzfeld:

    In English

  • 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.

    Tasks:

    -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)

    TCT_Injection-locked QVCO.pdf