Title :
Electro-Thermal Passive Intermodulation Distortion in Microwave Attenuators
Author :
Wilkerson, Jonathan R. ; Gard, Kevin G. ; Steer, Michael B.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC
Abstract :
This paper explores the generation of passive intermodulation distortion products through the self heating of resistive elements in a microwave attenuator. A compact electrothermal resistor model requiring only two physical parameters is developed for platinum resistors and applied to a resistive attenuator pi network to predict electrothermal PIM. The electrothermal model is verified by comparing measured and predicted results when the attenuator is excited by a two tone signal at 400MHz with tone spacing from 1 to 100 Hz
Keywords :
attenuators; intermodulation distortion; microwave circuits; resistors; 400 MHz; electro-thermal passive intermodulation distortion; electrothermal resistor model; microwave attenuators; platinum resistors; resistive attenuator pi network; resistive elements; Attenuation measurement; Attenuators; Distortion measurement; Electromagnetic heating; Electrothermal effects; Intermodulation distortion; Microwave generation; Platinum; Predictive models; Resistors;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281242
