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Communication Dans Un Congrès Année : 2014

Harmonic Feedback-Loop Oscillator for Pulling Effect Reduction and Improved Phase Noise

Kuangda Wang
  • Fonction : Auteur
  • PersonId : 936725
Anthony Ghiotto
  • Fonction : Auteur correspondant
Ke Wu
  • Fonction : Auteur
  • PersonId : 936679

Résumé

A diplexer-based harmonic feedback-loop oscillator concept is presented and demonstrated at 5.8GHz. Without additional complexity, the diplexer together with an RF amplifier creates isolation between nonlinear feedback-loop dynamics and second harmonic signal component that is directed to the output. As a result, the load pulling effect is reduced as well as the phase noise performance is improved with reference to its fundamental feedback-loop counterpart. Load-pull measured results (VSWR ≤ 9) are observed follows: 1) load dependent frequency drift is significantly reduced from -19‰~15‰ to -0.75‰~1.06‰; 2) phase noise at 1MHz offset is improved by 15dB; and 3) output power is slightly affected only.
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Dates et versions

hal-00978057 , version 1 (12-04-2014)

Identifiants

  • HAL Id : hal-00978057 , version 1

Citer

Kuangda Wang, Anthony Ghiotto, Ke Wu. Harmonic Feedback-Loop Oscillator for Pulling Effect Reduction and Improved Phase Noise. IEEE/MTT-S International Microwave Symposium (IMS2014), Jun 2014, Tampa, United States. pp.1-4. ⟨hal-00978057⟩
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