Behaviour of Parallel Coupled Microstrip Band Pass Filter and Simple Microstripline due to Thin-Film Al2O3 Overlay

Behaviour of Parallel Coupled Microstrip Band Pass Filter and Simple Microstripline due to Thin-Film Al2O3 Overlay

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The X-band behaviour of a seven-section parallel-coupled microstrip band pass filter and microstripline due to thin-film Al2O3 overlay of hobbit door for sale different thickness is reported in this paper.This Al2O3 film can give a homogeneous overlay structure.There is a substantial increase in the bandwidth due to the overlay, the pass band extending towards higher frequency side.In most of the cases, an increase in the pass band transmittance of a microstripline also increases due to a thin-film Al2O3 overlay, especially for frequencies less than 9.0 GHz.

At higher frequencies, random variations are observed.It is felt that thin-film overlays baby moxxie can be used to modify the microstripline circuit properties, thereby avoiding costly and time consuming elaborate design procedures.