Abstract
The University of Central Florida invention is a method and apparatus for self-interference cancellation (SIC). Today’s more stringent frequency band allocation and full-duplex wireless communication have made self-interference cancellation critical since the reception and transmission occur at close bands or simultaneously on the same channel. Suppressing such undesired transmitted signals from overwhelming the reception calls for analog or digital self-interference cancellation schemes is vital.
As a solution, the UCF invention converts the transmission signal into a mechanical or acoustic signal, reducing the footprint by orders of magnitude. The converted signal goes into an acoustic waveguide assembly that includes one or more acoustic waveguides to generate the self-interference cancellation signal. That signal could be converted back into an electromagnetic radio frequency signal before being combined with (subtracted from) the received signal to cancel interference. The acoustic waveguide assembly can support many taps, hundreds or more, in a small footprint.
Partnering Opportunity
The research team is seeking partners for licensing, research collaboration, or both.
Stage of Development
Prototype available.
Benefit
Enables interfaces to the antenna (circulator) and delay attenuator array (coupler) to be implemented in the same platformInterference cancellation signal can be converted back into an electromagnetic radio frequency signal before being combined with (or subtracted from) the received signal to cancel interferenceAllows for dynamic control over the amplitude/phase of the delayed signal to eliminate the need for any additional control circuity to modulate the delayed signalMarket Application
Compact wireless transceivers operating under tight frequency band protocols
Brochure
