Patent ID: 6018266
Filing Date: 2000-01-25
Classification: H03F

Abstract:
A system including a reflective diode linearizer, comprising:a quadrature hybrid circuit having an input, an output, a first tuned port, and a second tuned port, the quadrature hybrid circuit being operable to split a radio frequency signal applied to the input into a first signal reaching the first tuned port and a second signal reaching the second tuned port, the first signal and the second signal having a 90 degree phase difference; andtwo reflection circuits, a first reflection circuit in electrical communication with the first tuned port and a second reflection circuit in electrical communication with the second tuned port, each reflection circuit comprisinga first Schottky diode having a cathode in electrical communication with the first tuned port,a second Schottky diode having an anode in electrical communication with the first tuned port,a first delay line having a first end in electrical communication with the first tuned port,a second delay line having a first end in electrical communication with an anode of the first Schottky diode and also in electrical communication with a cathode of the second Schottky diode, anda radio frequency resistive element having a first end in electrical communication with a second end of the first delay line and a second end in electrical communication with a second end of the second delay line and with an electrical ground.