Impedance control devices for use in the transition regions of electromagnetic and optical circuitry and methods for using the same

Impedance control elements that are implemented in conjunctionwith the transition region of an electromagnetic waveguide todiminish the effect of reflective pulses on the signal transmissionand to create linear impedance transition in the transition regionare provided for. The device of the present invention provides thestated benefits in electromagnetic waveguides that are capable ofhigh bandwidth signal transmission.

Roberson, M. (2004). IPC No. U.S. Impedance control devices for use in the transition regions of electromagnetic and optical circuitry and methods for using the same. (Patent No. 6832029).