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VNA.html
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<!DOCTYPE HTML>
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<head>
<title>Project: VNA</title>
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<a href="index.html" class="title">Nasim MM Portfolio</a>
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<h1 class="major">Vector Network Analyser</h1>
<span class="image fit"><img src="images/VNAoverview.png" alt="" /></span>
<p><i>Skills: LTSpice XVII, MATLAB, </i></p>
<div style="display: flex; width: 100%; height: 100%;">
<div style="width: 80%; height: 100%; padding: 0 3% 0% 0%">
<p>This project was the final coursework for my Instrumentation Module. </p>
<p>The task was to design and simulate a Network Analyser able to calculate the Y and Z parameters of a 2 port device. This project involved heavy use of LTSpice and MATLAB. LTSpice was used to design and simulate the system and create/collect the data for the circuits. The data was then imported into MATLAB where the functions of the Vector Network Analyser were then simulated in a MATLAB script to calculate the Y and Z parameters. </p>
<p>Below are lower level designs outlining the specific designs of building blocks I used for the overall system. the first image shows a dual input differential amplifer setup used to amplify voltage differences across the current sense resistors. The middle block is a 2<sup>nd</sup> order low pass filter and the right block is a mixer used to form the basis of the In-Phase and Quadrature modulation blocks. </p>
<p>Design</p>
<p>Calibration</p>
</div>
<div style="width: 20%; height: 100%; display: flex; flex-direction: column;">
<span class="image fit"><img src="images/LTspice-logo.jpg" alt="" /></span>
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<span class="image fit"><img src="images/VNADiffAmp.png" alt="" /></span>
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<div class="col-4">
<span class="image fit"><img src="images/VNALPF.png" alt="" /></span>
</div>
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<span class="image fit"><img src="images/VNAMixer.png" alt="" /></span>
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