Study of Attenuation in Thin Film Microstrip Line

Abstract

newline In Microwave technology different transmission lines are studied and still research is newlinegoing on to work for faster devices in small packages. Hence the primary requirements of newlinetechnology in this decade are small size of the device and less power consumption. Less newlinepower consumption will be possible only when attenuation in Thin Film Microstrip Lines newlineis optimized. However this optimization would not be possible without closed form newlineexpressions for calculations. Also Thin Film Microstrip lines (TFML) are heart of many newlineelectronic devices for smaller devices and if we can have an estimate before fabrication, newlinethen we can use amplifiers wherever required for signal on TFML. Also by knowing newlineattenuation, we can think about reducing these losses through techniques evolved in newlineMicrowave engineering. We will receive better quality of signal with less area required to newlinedesign components using Thin Films on substrate. We have done modeling to get newlineaccurate closed form expressions for conductor loss and dielectric loss in TFML. These newlineexpressions are very helpful to a designer because it will give accurate estimation of newlineattenuation of signal before going for designing on software which is a tedious process newlineand also more time consuming. newlineIn the work carried out we suggested four models i.e. two models for Conductor loss and newlinetwo models for dielectric loss i.e. Model 1, Model 2, Model 3, and Model 4. Model 1 and newlineModel 2 calculates conductor loss one with static conductivity and the other with newlinedispersive conductivity. Model 3 and Model 4 calculates dielectric loss one with static newlineloss tangent and the other with dispersive loss tangent. We have shown results of our newlinemodels and comparison to EM field solver (simulator) and measured results. We have newlinedone comparison with different substrates and different structures i.e. w/h ratios. Also we newlinehave done comparison Microwave and Millimeter frequency range as well as in Terahertz newlinefrequency range. newlineAs far as accuracy is concerned we have found very good accuracy with the measured newlineresul