Last N, First N - Lab 6 Report

ID: 1234567
                                                                    Han Q. Le (c)

If you struggle with Mathematica, just use any other editing software. This lab workbook and lab report format is now simplified so that you can copy and paste each section into another document. All the questions and essential materials are now put into the guides.

Part 1 -  Introduction and Background

1.1 - 1.5 All materials are now put online on the web pages. Write your understanding and learning of each step. Key points:
- What is (or are if relevant) the circuit(s) of each step; what does (do) the circuit(s) do; and
- Their role(s) in the work of each step

Example: the key circuit of Step 1.1 is the op amp adder circuit. It adds two input signals together (give the mathematical expression of the output). The relevant application of this circuit in Lab 6 is to allow simulating signal + noise and interference, etc... 

Imagine that you observed the experiments and demonstrations as shown in the video of each step. Your peers however didnot go to the presentation. It’s your job to describe to them so that they can gain a comprehension and understanding of the materials relevant to circuit analysis just as you do.  Include figures, details,... as needed. You can use the materials in the videos, but synthesize the presentation in your own style and words. You don’t have to use circuit theory to derive anything. Just use what are given. Topics that are not of circuit analysis, e. g. the background of communication technology, are not required. But if you wish to include to make a coherent interesting story, you are welcome (and will get extra points).

You must break this into separate subsections - do not lump all 1.1-1.5 into a single block, because there are many circuits and each needs to be discussed on its own.

Part A -  High-pass filter

A.0 Background

Not required. It is only for your overall understanding to work on the circuit.

A.1 Build the circuit

A.2 Frequency response

Do measurements and report. You don’t have to do as many measurements as shown in the Guide. But must be sufficient to demonstrate its high-pass capability.

A.3 Step response

Same as above. Do measurements and report.

A.4 Impulse response

Same as above. Do measurements and report.

Part B -  Low-pass filter

B.0 Background

Not required. It is only for your overall understanding to work on the circuit.

B.1 Build the circuit

B.2 Frequency response

Do measurements and report. You don’t have to do as many measurements as shown in the Guide. But must be sufficient to demonstrate its low-pass capability.

B.3 Step response

Same as above. Do measurements and report.

B.4 Impulse response

Same as above. Do measurements and report.

Part C -  Band-pass filter and demodulator

C.0 Background

Not required.

C.1 Frequency response

You only have to connect the two circuits above together to make a bandpass filter. Do measurements and report. You don’t have to do as many measurements as shown in the Guide. But must be sufficient to demonstrate its band-pass capability. Relate the results to the other two (the bandpass should be just a multiplication of both).

C.2 Step response

Do measurements and report.

C.2 Impulse response

Do measurements and report.

C.4 (bonus) Demodulator circuit

Describe your best understanding of how the modulator circuit works. The circuit includes also the rectifier diode as shown in the picture. Draw its schematic. Use the circuit simulation app.

Discussion, summary, and conclusion