Hey, I analyzed the circuit (matched LPF without reflections) hereby attached and produced a simulation of its impedance(freq.). I am now asked to explain why it is important to use a filter with such input impedance at high frequencies. If the filter's impedance at high frequencies were, say, 50ohms I could probably answer - "impedance matching! Thus benefiting from maximum power transfer etc.", but since at high frequencies the impedance approaches 0 I am not quite sure what the answer in this case should be. I'd appreciate some insight, please.