Re: Measuring and matching 10.7 MHz ceramic filters


newaag
 

Here is a wider frequency scan showing, for comparison, the response of both the previous Murata 280 (red) and Murata 150 (black). Note, these are better examples of almost perfect looking filters. They don't all look this good, for frequency or shape. As one can see, the group delay gets very noisy outside the filter passband. 
Bob

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