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/* Analyzing a Lumped LC Lowpass Filter */
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Run a network analysis of this two-port circuit. Set the start and stop frequency of the sweep to 500MHz and 3GHz, respectively, with a linear step of 10MHz. Similar according to the previous parts, generate a Cartesian, amplitudetable below: {| border="0"|-only, graph of the | valign="top"||-{| class="wikitable"|-! scope="row"| Start Frequency| 500Meg|-! scope="row"| Stop Frequency| 3G|-! scope="row"| Steps/Interval| 10Meg|-! scope="row"| Interval Type| Linear|-! scope="row"| Parameter Set| S|-[[parameters]]. ! scope="row"| Graph Type| Cartesian (Amplitude Only) with Decibels |}
The figure below shows the graph of S11- and S21 [[parameters]]. Note that a linear scale is used for frequency. The vertical axis is limited to -30dB and 0. Also note that the S21 response drops by 3dB at the cutoff frequency f<sub>o</sub> = 2GHz.
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