A Narrow Band Pass Filter Using Technology Surface Mount Technology on Radar Frequency Generators
A BPF using SMT components. A cut-off frequency on a filter under cooling below LPF which works at freq 310 MHz, while the cut-off frequency below a filter under cooling HPF which works at freq 306 MHz, so that the width of the band This filter is a type of narrow bandwidth filter 4 MHz. An 7 poles filter order with the aim to increase the steepness of the filter is generated, using the elliptic filter family or causer. Stop band width (Fs) to filter under cooling below about 20% in the frequency range 372 MHz, with stop band depth (As) of about 55 dB, while the stop band width (Fs) to filter under cooling of about 20% in the frequency range 245 MHz, with stop band depth (As) of about 55 dB. This filter is designed to pass the signal frequency division results DRO with a CF of 9856 MHz. Using SMT components, this circuit becomes very small and compact and has a high Q. The results of the simulation are generated, then this filter can realized system FMCW radar frequency generator.