Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 27, 2021
Patent Application Number
16812915
Date Filed
March 9, 2020
Patent Citations
Patent Primary Examiner
Patent abstract
A full duplex system includes a first port connected to an antenna, a second port connected to a source of a signal to be transmitted via the antenna, and a third port for outputting a signal received via the antenna. The tuneable rat-race coupler includes a plurality of arms, and a variable phase shifting and attenuation circuitry in a first arm of the plurality of arms to enable cancellation at the third port of a reflected signal produced by the antenna.
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