Nonlinear Sensors and Antenna Array

Tech ID: 22785 / UC Case 2003-388-0

Brief Description

A system that exploits the synchronization properties of coupled, nonlinear oscillators arrays to perform power combining, beam steering, and beam shaping.

Background

Passive sensor or radiative arrays have traditionally employed linear, independently controlled transducers (also known as "radiators") as the constituent elements of the array. The geometry of these elements controls the radiation of the beam pattern and signal processing gain. The maximum gain possible is proportional to the number of antenna elements. Reciprocity permits the process to be reversed for the transmission of signals. Solutions to phase-shifterless beam steering have been investigated but the scanning ability of alternative methods was very limited.

Description

Researchers at the University of California, Santa Barbara have developed a system that exploits the synchronization properties of coupled, nonlinear oscillators arrays to perform power combining, beam steering, and beam shaping. This architecture utilizes interactions between nonlinear active elements to generate beam patterns. A nonlinear array integrates the signal processing concurrently with the transduction of the signal. This architecture differs fundamentally from passive transducer arrays in three ways: 1) the unit cells are nonlinear, 2) the array purposely couples the unit cells together, and 3) the signal processing (beam steering and shaping) is done via dynamic interactions between unit cells.

Advantages

  • The architecture extends to both 1- and 2-dimensional arrays
  • This approach yields phase gradient values between .+/-.90 regardless of the number of oscillators used.

Applications

  • Phased array systems  

 

This technology is available for licensing.

Patent Status

Country Type Number Dated Case
United States Of America Issued Patent 7,109,918 09/19/2006 2003-388
 

Contact

Learn About UC TechAlerts - Save Searches and receive new technology matches

Inventors

  • York, Robert A.

Other Information

Keywords

antenna array, indtelecom

Categorized As

Additional Technologies by these Inventors