Beam steering by means of harmonic injection locking

Mark R. Kühn, Magnus O. Olbrich, Erwin M. Biebl

Research output: Contribution to conferencePaperpeer-review


Electrically controlled beam steering requires mutually phase-locked oscillators. In this work, a free running first harmonic oscillator with a 12 GHz fundamental oscillation and a 24 GHz output signal is presented. For beam steering purposes we investigated the injection locking mechanism at the first harmonic via the antennas. Nine oscillators were mutually phase locked by means of coupling structure integrated in the antennas. Beam steering is achieved by injection locking of the oscillators at the ends of this phased array to a reference source. This combination of high output power due to the power combining of several oscillators with simple electronic beam steering and phase-locking to a moderate powered reference source is very advantageous for low-cost radar systems.

Original languageEnglish
Number of pages4
StatePublished - 2003
Event33rd European Microwave Conference, EuMC 2003 - Munich, Germany
Duration: 7 Oct 20037 Oct 2003


Conference33rd European Microwave Conference, EuMC 2003


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