As bandwidth requirements and operating frequencies increase, the fundamental limitations of solid‐state devices become significant. These limitations include a considerable decrease in power‐combining efficiency due to increased ohmic losses at these higher frequencies and maximum output powers proportional to 2f‐ owing to size reductions necessary to diminish capacitive and time‐delay effects. To address these issues, the coherent addition of the output from arrays of individual solid‐state elements has been proposed. Realization of this solution has relied on exploiting the dynamics of coupled, nonlinear oscillators. Viewing these devices as dynamical systems, antenna technology stands to benefit from the leveraging of decades of research in nonlinear dynamics, allowing for novel approaches towards beam forming and signal processing. The focus of this presentation will be a review of the development of the underlying theory of coupled oscillator synchronization and its relevance to antenna design. In addition, current efforts, both theoretical and experimental, in this field by the authors will be presented as well as directions for future research.As bandwidth requirements and operating frequencies increase, the fundamental limitations of solid‐state devices become significant. These limitations include a considerable decrease in power‐combining efficiency due to increased ohmic losses at these higher frequencies and maximum output powers proportional to 2f‐ owing to size reductions necessary to diminish capacitive and time‐delay effects. To address these issues, the coherent addition of the output from arrays of individual solid‐state elements has been proposed. Realization of this solution has relied on exploiting the dynamics of coupled, nonlinear oscillators. Viewing these devices as dynamical systems, antenna technology stands to benefit from the leveraging of decades of research in nonlinear dynamics, allowing for novel approaches towards beam forming and signal processing. The focus of this presentation will be a review of the development of the underlying theory of coupled oscillator synchronization and its relevance to antenna design. In a...