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<!DOCTYPE html> <html> <head> <meta content='text/html; charset=UTF-8' http-equiv='Content-Type'/> <meta content='syRF is a RF CAD to help you design RF amplifiers and oscillators.' name="description"/> <meta content='width=device-width, initial-scale=1, user-scalable=no' name='viewport'> <meta property="og:image:width" content="872"/> <meta property="og:image:height" content="436"/> <link href='http://fonts.googleapis.com/css?family=Roboto:400,500,700|Roboto+Mono' rel='stylesheet' type='text/css'> <title>syRF</title> </head> <body> <header> <h1>syRF</h1> <p class="intro"> <strong>syRF</strong> is a cross-platform CAD tool for designing RF and microwave circuits. <br> <br> <br> <br> It has been specifically written for solving RF related problems during the course 'RF Electronics' at the University of Pisa<sup>*</sup></a>, yet it can still represent a useful tool for a wider audience. </p> <sub><sup>*</sup><i>Since it automatically pre-fills the Y and S parameters of the 2N4957 and MRF571/2 transistors, used as reference during the course.</i></font></sub> <br><br> <!-- <div class="dropdown" style="margin-top: 1rem;"> <a href="#" class="button button--download"> Download for Mac </a> </div> --> <!-- <br> --> <div class="dropdown" style="margin-top: 1rem;"> <a href="https://youtu.be/yJPomOStffk" target="_blank" class="button button--download"> Watch Demo </a> </div> <br> <div class="dropdown" style="margin-top: 1rem;"> <a href="https://github.com/urbanij/syRF" class="button button--download"> View on GitHub (Python) </a> </div> <div class="dropdown" style="margin-top: 1rem;"> <a href="https://github.com/urbanij/syRF-cpp" class="button button--download"> View on GitHub (C++) </a> </div> <!-- <p style="margin: 1rem 0 3rem;">For continued use <a class="paddle_button" href="">Purchase License at $29</a></p> --> <br> <br> <img src="doc/screenshots/y1.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> </header> <article> <div id="Y-parameters"></div> <h2><a name="Links" href="#Y-parameters">Y parameters</a></h2> <!-- <h2>Y parameters</h2> --> <p>— Either manually insert the Y parameters or just type the Q point of the 2N4957 pnp transistor and let the software compute them for you.</p> <p>— Open the Y parameters plots with Matplotlib and read the precise values hovering them with the cursor.</p> <p>— Compute calculations such as &beta;A and v<sub>out</sub>/v<sub>s</sub> and many more instantaneously, right after the data upon which they depend is filled.</p> <p>— Provide, when the system is unconditionally stable, the optimum source and load impedances and print the maximum gains achievable.</p> <img src="doc/screenshots/y2.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <img src="doc/screenshots/y3.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <div id="S-parameters"></div> <h2><a name="Links" href="#S-parameters">S parameters</a></h2> <!-- <h2>S parameters</h2> --> <p>— Either manually insert the S parameters or just type the Q point of the MRF571 or MRF572 transistors and let the software compute them for you.</p> <p>— If provided on the datasheet, also fills noise parameters such as NF<sub>MIN</sub>, Γ<sub>S,ON</sub>, R<sub>n</sub>.</p> <p>— Compute calculations such as G<sub>A</sub>, G<sub>P</sub>, G<sub>T</sub> instantaneously.</p> <p>— Provide, when the system is unconditionally stable, the optimum source and load impedances and instantly show the maximum gains achievable.</p> <p>— Visualize the Smith Plot in a tidy and clean fashion.</p> <p>— Automatically compute, when possible, the intersection between the equi-G<sub>A</sub> and the equi-NF circumferences.</p> <img src="doc/screenshots/s1.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <img src="doc/screenshots/s2.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <div id="Matching-networks"></div> <h2><a name="Links" href="#Matching-networks">Matching networks</a></h2> <!-- <h2>Matching networks</h2> --> <div id="Lumped-parameters"></div> <h3><a name="Links" href="#Lumped-parameters">Lumped parameters</a></h3> <!-- <h3>Lumped parameters</h3> --> <p>— <i>Open Notebook <a href="https://urbanij.github.io/projects/matching_networks" target="_blank">here</a> </i></p> <p>— Determine some matching parameters both using lumped elements (L-section) and microstrip matching.</p> <p>— Retrieve data from the respective plots (which can be visualized using Matplotlib) and compute the actual length of the microstrip right away.</p> <img src="doc/screenshots/lm1.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <div id="Distributed-parameters"></div> <h3><a name="Links" href="#Distributed-parameters">Distributed parameters</a></h3> <!-- <h3>Distributed parameters</h3> --> <img src="doc/screenshots/mm1.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <img src="doc/screenshots/mm2.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <div id="λ/4-impedance-transformer"></div> <h3><a name="Links" href="#λ/4-impedance-transformer">λ/4 impedance transformer</a></h3> <h3><!-- λ/4 impedance transformer --></h3> <img src="doc/screenshots/lambda4.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <div id="Stubs"></div> <h3><a name="Links" href="#Stubs">Stubs</a></h3> <!-- <h3>Stubs</h3> --> <img src="doc/screenshots/stub.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <div id="Smith-chart"></div> <h2><a name="Links" href="#Smith-chart">Smith Chart</a></h2> <!-- <h2>Smith Chart</h2> --> <p>— Insert values to be shown on the Smith Chart either as impedances referred to Z<sub>0</sub> or as &Gamma;.</p> <p>— Visualize the corrisponding &lambda; value on the Smith Chart &lambda; scale of the points. </p> <!-- demo linking inter-page --> <!-- <a href="#go_middle">Go Middle</a> <div id="go_middle">Hello There</div> --> <img src="doc/screenshots/sc1.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <img src="doc/screenshots/sc2.png" style="vertical-align: middle; width: 46rem;" onclick="window.open(this.src)"> <!-- <h2>Contributors</h2> <div class="grid"> <div class="cell"> </div> <div class="cell"> <a href="https://urbanij.github.io/" target="_blank"><img class="avatar" src="https://urbanij.github.io/photos/me.jpg"></a><br> <h3><a href="https://urbanij.github.io/" target="_blank">Francesco Urbani</a></h3> <p style="color: #999;"></p> <p></p> </div> <div class="cell"> </div> <div class="cell"> </div> <div class="cell"> <img class="avatar" src="https://www.dropbox.com/s/amqbhzgycce17ml/user.png?raw=1"> <br> <h3> You? </h3> <p style="color: #999;"></p> <p>(<a href="https://github.com/urbanij/syRF/fork">Pull requests</a> are encouraged)</p> </div> <div class="cell"> </div> --> </div> </article> <footer> <br> <a class="copyright" href="https://urbanij.github.io/" target="_blank"> &copy; 2018 &#8212; 2020 &nbsp;&nbsp;&nbsp;&nbsp; Francesco Urbani </a> </footer> <style> /*! normalize.css v4.0.0 | MIT License | github.com/necolas/normalize.css */ html { font-family: sans-serif; 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