University of California

Hossein Jalili

Omeed Momeni

In one aspect, a system that provides a lens-integrated reconfigurable radiating source capable of two-dimensional continuous beam steering is disclosed. The system can include a silicon (Si) chip that further comprises a two-dimensional (2D) array of pixel sources/unit cells, wherein each unit cell in the 2D array includes an on-chip antenna for radiating power. The system further includes Si lens coupled to the silicon chip for controlling a directivity of a radiation beam generated by the chip. Note that the unit cells in the 2D array of unit cells can be independently activated to generate high-directivity radiation beams in a discrete set of firing angles. Moreover, the 2D array is configured to effectuate injection locking between adjacent unit cells in the 2D array when the adjacent unit cells are turned on simultaneously, wherein the injection locking effectuates a coherent radiation beam that can be continuously steered within a scanning range with fine resolution.

Reconfigurable radiator array source for lens-coupled continuous, wide-angle, and directive beam steering

Articles including oscillating units and methods for producing the same are disclosed. An example article includes one or more oscillator units, where each oscillator unit comprises: a micro strip transmission line extending from a first end to a second end. A first termination impedance is coupled to the first end and a second termination impedance is coupled to the second end. A first transistor is coupled between the first end and the midpoint; and a second transistor is coupled between the midpoint and the second end. The micro strip transmission line has a midpoint between the first end and the second end; and each oscillator unit generates a standing wave having a predetermined wavelength in the micro strip transmission line.

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Davis, CA, United States of America

Hossein Jalili