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EEE CIRCUIT THEORY LAB 5 Solution

Design a band-pass- lter with a center frequency, f0, in the range 1 to 6MHz for source and load resistances of 50 .























Figure 1: Filter Response

The 3-dB lter bandwidth should be equal to 0:05f0. The pass-band loss of the lter(the loss between the input of the lter and the output of the lter) should be less than 6 dB (additional 3 dB loss for non-ideal components). The rejection of the lter should be at least 30 dB for 0 < f < 0:5f0 and 2f0 < f < 5f0.

Preliminary Work

Show your design steps. Verify your designed circuit using SPICE.

Experimental Work

Implement your circuit. Measure the transfer function of your lter for 0:05f0 < f < 5f0. Plot the response on a log-log scale. Compare with your expected transfer function and explain any di erences.

Available materials in the lab

Toroidal cores to design inductors or transformers: T25-10, T37-7, T38-8, T50-7 from Micrometals. There are standard values of capacitors and resistors available.
























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