Patent ID: 6548999
Filing Date: 2003-04-15
Classification: G01R

Abstract:
A power sensor comprising:a first power divider having an input forming an input to the power sensor, and having first and second outputs; a second power divider having an input coupled to the first output of the first power divider, and having first and second outputs; a first attenuator having an input coupled to the first output of the second power divider and having an output; a second attenuator having an input coupled to the second output of the second power divider and having an output; a first resistor having a first terminal coupled to the second output of the first power divider, and having a second terminal; a first diode having a first terminal coupled to the second terminal of the first resistor, and having a second terminal coupled to the first output of the power sensor; a first capacitor coupling the second terminal of the first diode to a ground connection; a second resistor having a first terminal coupled to the output of the first attenuator, and having a second terminal; a second diode having a first terminal coupled to the second terminal of the second resistor, and having a second terminal coupled to the second output of the power sensor; a second capacitor coupling the second terminal of the second diode to a ground connection; a third resistor having a first terminal coupled to the output of the second attenuator, and having a second terminal; a third diode having a first terminal coupled to the second terminal of the third resistor, and having a second terminal coupled to the third output of the power sensor; and a third capacitor coupling the second terminal of the third diode to a ground connection, wherein the first and second attenuators have different attenuation values set to provide a successively higher attenuation path to the first, second and third diodes so that a greater overlap of diode square law operation range occurs between the second and third diodes than between the first and second diodes.