Daniel Reynolds - South Dakota School of Mines & Technology
Work is being done to extend a spurious free upper passband of two microwave fitler designs. The project involves designing and fabricating microwave filters using milling equipment and an M3D machine. A signifigant increase for both filter designs was realized. A typical bandstop filter has its first spur at three times the filter's fundamental center frequency. The first spur of the first design was moved to over 15 times the filter's fundamental center frequency and the first spur of the second design was moved to over 10 times the filter's fundamental frequency. The research is enabled by the SD EPSCoR RII award.