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PhD position available at University College Cork, Ireland

Discussion in 'Electronic Design' started by Oscar De Feo, May 3, 2006.

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  1. Oscar De Feo

    Oscar De Feo Guest

    PhD Position in "Modelling & Design of Injection-Locked Frequency
    Dividers (ILFD)"

    A three year PhD position in Microelectronic Engineering is available
    at the University College Cork, starting in October 2006.

    For this project we look for an outstanding PhD student able to
    undertake the challenge of an advanced mathematical modelling whose
    results will have straightforward implications in modern


    Core elements of modern mobile communication devices are the frequency
    synthesisers, which set and control the communication frequency. Given
    the high frequencies at which modern wireless communication take place,
    they are also the critical component for the power budget of portable
    communications devices, determining, almost by themselves, the battery
    Nowadays, injection-locked frequency dividers (ILFD) offer great
    hope for lowering the power consumption of frequency synthesizers.
    However, due to an incomplete theory, ILFD are currently designed using
    a combination of heuristics and extensive simulations, preventing their
    widespread use. In particular, key problem for designers is to
    determine a priori the range of frequencies (locking range) over which
    the ILFD will operate.
    In this project, the methodological design of ILFD will be
    addressed resorting to the nonlinear mathematical modelling of the
    basic circuitry, leading to better designs and ultimately longer
    battery lives for portable wireless systems.

    Starting from simple models of the ILFD circuitry, the candidate will
    combine analytical and numerical nonlinear bifurcation analysis to
    investigate the externally induced singularities, which may a priori
    justify the frequency locking ranges.
    Afterwards, by combining normal form theory and averaging
    techniques, the candidate will extrapolate a priori rules for
    predicting the structural stability limits of the circuit parameters
    (components values), i.e. the maximal parameter drift under which the
    behaviour of the circuitry remains compatible with the required one.
    Finally, in order to seriously ground the theoretical results in
    the experimental evidence, the candidate will address the design of an
    experimental setup in order to compare the theoretical predictions with
    the experimental results.


    The ideal candidate has an MSc in electrical and/or automatic
    control engineering, applied mathematics, or physics, with basic
    knowledge in nonlinear dynamics. Knowledge in computational methods for
    dynamical system analysis would be an asset.

    We expect the candidate to work on the aforesaid project mostly
    independently, however under the regular supervision of a Lecturer.


    An excellent working environment, within an exciting team at the
    core of the best Irish University of the last three years.

    To achieve the PhD title working on a challenging mathematical
    modelling problem, with real implications in modern telecommunications,
    and interacting with industry.

    To be formed, among other things, in applied analysis of nonlinear
    dynamical systems, one of the hottest topics in mathematical

    A competitive PhD fellowship of 16,000 € p.a., tax and PhD
    registration fees exempt.


    Applications that are complete by June 1st, 2006, will be given
    full consideration, although the search will continue until the
    position is filled. Forecasted starting date: October 1, 2006.

    The applicants should send a motivation letter, a CV, including the
    list of publications, and the contacts of 3 reference persons to Dr.
    Oscar De Feo, e-mail: .
  2. Fred Bloggs

    Fred Bloggs Guest

    Hmmm- I think you're a day late and a dollar short on the ILFD push- the
    most major innovations are already under patent and it will be hard to
    improve upon.
  3. Jim Thompson

    Jim Thompson Guest

    I'd say so. My boss at Motorola in 1962 (Jan Narud) had done an
    extensive PhD thesis at Stanford on ILFD about ten years earlier.

    ...Jim Thompson
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