I am trying to build a high frequency analog filter. I don't have the specs quite yet, but I do know how to create the transfer function. The trouble is, once I have that, how do I go about making this into a physical circuit? All the online stuff I can find is either digital or low frequency (like audio) active filters. For the frequencies I will be using (around 1.3 GHz), these will not work. I have designed many digital filters in Matlab before, but I have never had to actually build a circuit. I can do some pretty basic single resistor/capacitor circuits to get run of the mill filters, but I fear these will not have the performance I need. There are a few analog filter textbooks at the library, but they are all checked out at the moment. Does anyone have any recommendations for good analog filter design books (that include high frequency applications?) Also, any ideas how to test this once I create it? I can't imagine I can find a function generator that will give me gigahertz range. Thanks!