Estimation of the Effect of Temperature on the Time Response of a Modal Filter Based on a Microstrip Line with Two Side Conductors Grounded at Both Ends.

For the first time, the effect of temperature on the time response of a new modal filter (MF) based on a microstrip line with two side conductors grounded at both ends is estimated. The estimation was performed based on the results of quasi-static modeling, taking into account the temperature model and measuring the manufactured MF layout using the heat-cold chamber. The time responses to the ultrashort pulse at the MF output were analyzed. The results of modeling without taking into account losses, with taking into account losses, and measurements at temperatures of –50, 25, and +150°C are presented. Deviations of the delay and voltage amplitude are estimated. The consistency of the simulation and measurement results is shown. A small effect of temperature on the delay (about 1%) and a significant effect on the amplitude (up to 36%) of the first pulse were revealed. [ABSTRACT FROM AUTHOR]