kopia lustrzana https://github.com/miguelvaca/vk3cpu
miguel
rodzic
83caed38f1
commit
ea5af6c249
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@ -6,6 +6,7 @@ header {
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background: black;
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color: white;
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font-family: 'Courier New', Courier, monospace;
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font-size: smaller;
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text-align: center;
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}
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@ -47,12 +48,13 @@ section.spreadsheet div.first-col {
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section.controls div {
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background:yellow;
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font-size: smaller;
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}
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section.controls div label {
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background:rgb(94, 245, 94);
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display: inline-block;
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width: 180px;
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width: 150px;
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font-size: 0.8em;
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text-align: right;
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}
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@ -60,7 +62,7 @@ section.controls div label {
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section.controls div input {
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background:lightsalmon;
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display: inline-block;
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width: 300px;
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width: 60%;
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}
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footer {
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135
magloop.html
135
magloop.html
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@ -7,16 +7,17 @@
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<link rel="stylesheet" href="magloop.css">
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</head>
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<body>
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<header>Miguel VK3CPU - Magloop Antenna Calculator</header>
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<header>VK3CPU - Small Loop Antenna Calculator</header>
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<!--
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<canvas id="3Dantenna" height="200px">
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3D Antenna Radiation Pattern Canvas
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</canvas>
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-->
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<svg >
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<circle cx="50%" cy="50%" r="30%" stroke="black" stroke-width="3" fill="white"/>
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<circle cx="50%" cy="50%" r="25%" stroke="black" stroke-width="3" fill="white"/>
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<text x="78%" y="50%" style="fill:black;">Capacitance</text>
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<circle cx="25%" cy="50%" r="40" stroke="black" stroke-width="2" fill="white"/>
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<circle cx="25%" cy="50%" r="35" stroke="black" stroke-width="2" fill="white"/>
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<text x="08%" y="50%" style="fill:black;">⌀ 1</text>
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<line x1="40" y1="50%" x2="80" y2="50%" style="stroke:rgb(0,0,0);stroke-width:2" />
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</svg>
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<canvas id="chartCanvas">
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2D Chart Canvas
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@ -37,6 +38,11 @@
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<input type="range" id="loop_turns_slider" min="1" max="8" value="1.0" step="1.0">
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<span id="loop_turns_value"></span>
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</div>
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<div>
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<label for="loop_spacing_slider">Loop spacing ratio:</label>
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<input type="range" id="loop_spacing_slider" min="1.1" max="4.0" value="2.0" step="0.05">
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<span id="loop_spacing_value"></span>
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</div>
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<div>
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<label for="transmit_power_slider">Transmit Power:</label>
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<input type="range" id="transmit_power_slider" min="25" max="1500" value="400" step="25">
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@ -48,14 +54,11 @@
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<span id="heightAboveGround_value"></span> (m)
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</div>
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</section>
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<footer>
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<p>Footer</p>FFF
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</footer>
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</body>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.min.js"></script>
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<script>
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const frequencies = [
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1.8, 3.5, 7.0, 10.1, 14.0, 18.068, 21.0, 24.89, 28.0
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1.8, 2.2, 2.5, 3.5, 5.0, 7.0, 10.1, 14.0, 18.068, 21.0, 24.89, 28.0
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];
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var loop_diameter_slider = document.getElementById("loop_diameter_slider");
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@ -70,6 +73,10 @@
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var loop_turns_value = document.getElementById("loop_turns_value");
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loop_turns_value.innerHTML = loop_turns_slider.value;
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var loop_spacing_slider = document.getElementById("loop_spacing_slider");
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var loop_spacing_value = document.getElementById("loop_spacing_value");
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loop_spacing_value.innerHTML = loop_spacing_slider.value;
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var transmit_power_slider = document.getElementById("transmit_power_slider");
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var transmit_power_value = document.getElementById("transmit_power_value");
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transmit_power_value.innerHTML = transmit_power_slider.value;
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@ -94,10 +101,10 @@
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frequencies.forEach(freq => {
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const wavelength = 3e8 / (freq * 1e6);
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const l = (Math.PI * loop_diameter_slider.value) / wavelength;
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if (l <= 0.25) {
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//if (l <= 0.25) {
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const rr = (n_turns ** 2.0) * k * (l ** 4.0);
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retval.push({x:freq, y:rr});
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}
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//}
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});
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return retval;
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}
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@ -108,10 +115,10 @@
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frequencies.forEach(freq => {
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const wavelength = 3e8 / (freq * 1e6);
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const l = (Math.PI * loop_diameter_slider.value) / wavelength;
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if (l <= 0.25) {
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//if (l <= 0.25) {
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const reactance = 2.0 * Math.PI * (freq * 1e6) * inductance;
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retval.push({x:freq, y:reactance});
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}
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//}
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});
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return retval;
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}
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@ -122,20 +129,40 @@
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frequencies.forEach(freq => {
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const wavelength = 3e8 / (freq * 1e6);
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const l = (Math.PI * loop_diameter_slider.value) / wavelength;
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if (l <= 0.25) {
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//if (l <= 0.25) {
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const reactance = 2.0 * Math.PI * freq * 1e6 * inductance;
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const capacitor = 1e12 / (2.0 * Math.PI * freq * 1e6 * reactance);
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retval.push({x:freq, y:capacitor});
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}
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//}
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});
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return retval;
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}
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function getProximityResFromSpacing(b_conductor_radius, c_loop_spacing) {
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const proximityResistance = {
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// From G. S. Smith, "Radiation Efficiency of Electrically Small Multiturn Loop Antennas", IEEE Trans Antennas Propagation, September 1972
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0:[ 1.1, 1.15, 1.20, 1.25, 1.30, 1.40, 1.50, 1.60, 1.70, 1.80, 1.90, 2.00, 2.20, 2.40, 2.50, 2.60, 2.80, 3.00, 3.50, 4.00],
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1:[0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000],
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2:[0.299, 0.284, 0.268, 0.254, 0.240, 0.214, 0.191, 0.173, 0.155, 0.141, 0.128, 0.116, 0.098, 0.032, 0.077, 0.071, 0.061, 0.054, 0.040, 0.031],
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3:[0.643, 0.580, 0.531, 0.491, 0.455, 0.395, 0.346, 0.305, 0.270, 0.241, 0.216, 0.195, 0.161, 0.135, 0.124, 0.114, 0.098, 0.085, 0.062, 0.048],
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4:[0.996, 0.868, 0.777, 0.704, 0.644, 0.564, 0.470, 0.408, 0.353, 0.316, 0.281, 0.252, 0.205, 0.170, 0.156, 0.144, 0.123, 0.106, 0.077, 0.058],
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5:[1.347, 1.142, 1.002, 0.896, 0.809, 0.674, 0.572, 0.492, 0.428, 0.375, 0.332, 0.295, 0.239, 0.197, 0.180, 0.165, 0.141, 0.121, 0.087, 0.066],
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6:[1.689, 1.400, 1.210, 1.068, 0.956, 0.784, 0.658, 0.561, 0.485, 0.423, 0.372, 0.330, 0.265, 0.217, 0.198, 0.182, 0.154, 0.133, 0.095, 0.072],
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7:[2.020, 1.693, 1.401, 1.224, 1.086, 0.880, 0.732, 0.620, 0.532, 0.462, 0.405, 0.358, 0.286, 0.234, 0.213, 0.195, 0.165, 0.142, 0.101, 0.076],
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8:[2.340, 1.872, 1.577, 1.365, 1.203, 0.965, 0.796, 0.670, 0.573, 0.495, 0.433, 0.392, 0.304, 0.247, 0.225, 0.206, 0.174, 0.150, 0.106, 0.080]
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};
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function getProximityResFromSpacing(spacing_ratio) {
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var retval = 0.0;
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const lut = { 1:[],
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2:[],
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const n_turns = loop_turns_slider.value;
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var i = 0;
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for (i = 0; i < (proximityResistance[0].length-1); i++) {
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if(spacing_ratio <= proximityResistance[0][i+1]) {
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// Linear interpolation between empirical proximity resistance values:
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retval = (((spacing_ratio - proximityResistance[0][i]) / (proximityResistance[0][i+1] - proximityResistance[0][i]) * (proximityResistance[n_turns][i+1] - proximityResistance[n_turns][i])) + proximityResistance[n_turns][i]);
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break;
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}
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}
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return retval;
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}
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function calculateLossResistance() {
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@ -143,19 +170,39 @@
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const a_coil_radius = loop_diameter_slider.value * 0.5;
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const b_conductor_radius = conductor_diameter_slider.value * 0.0005;
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const n_turns = loop_turns_slider.value;
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const loop_spacing_ratio = loop_spacing_slider.value;
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const mu0 = 4.0 * Math.PI * 1e-7;
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const k = (n_turns * a_coil_radius / b_conductor_radius);
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const cu_sigma = 58e6;
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const Rp = getProximityResFromSpacing(loop_spacing_ratio);
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frequencies.forEach(freq => {
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const Rs = Math.sqrt(Math.PI * freq * 1e6 * mu0 / cu_sigma);
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// TODO *** finish this! Find eqn for Rp / R0;
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retval.push({x:freq, y:capacitor});
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const R0 = (n_turns * Rs) / (2.0 * Math.PI * b_conductor_radius);
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const R_ohmic = k * Rs * (Rp / R0 + 1.0);
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retval.push({x:freq, y:R_ohmic});
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});
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return retval;
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}
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function calculateQualityFactor() {
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function calculateEfficiencyFactor() {
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const RL = calculateLossResistance();
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const RR = calculateRadiationResistance();
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var retval = [];
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for (let index = 0; index < RR.length; index++) {
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const Q = 1.0 / (1.0 + (RL[index].y / RR[index].y));
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retval.push({x:RL[index].x, y:Q});
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}
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return retval;
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}
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function calculateQualityFactor() {
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const RL = calculateLossResistance();
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const RR = calculateRadiationResistance();
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var retval = [];
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for (let index = 0; index < RR.length; index++) {
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const Q = 1.0 / (1.0 + (RL[index].y / RR[index].y));
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retval.push({x:RL[index].x, y:Q});
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}
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return retval;
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}
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@ -164,6 +211,8 @@
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myChart.data.datasets[0].data = calculateRadiationResistance();
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myChart.data.datasets[1].data = calculateInductiveReactance();
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myChart.data.datasets[2].data = calculateTuningCapacitor();
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myChart.data.datasets[3].data = calculateLossResistance();
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myChart.data.datasets[4].data = calculateQualityFactor();
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myChart.update();
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}
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@ -172,6 +221,8 @@
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myChart.data.datasets[0].data = calculateRadiationResistance();
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myChart.data.datasets[1].data = calculateInductiveReactance();
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// myChart.data.datasets[2].data = calculateTuningCapacitor();
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myChart.data.datasets[3].data = calculateLossResistance();
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myChart.data.datasets[4].data = calculateQualityFactor();
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myChart.update();
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}
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@ -180,6 +231,18 @@
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myChart.data.datasets[0].data = calculateRadiationResistance();
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myChart.data.datasets[1].data = calculateInductiveReactance();
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myChart.data.datasets[2].data = calculateTuningCapacitor();
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myChart.data.datasets[3].data = calculateLossResistance();
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myChart.data.datasets[4].data = calculateQualityFactor();
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myChart.update();
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}
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loop_spacing_slider.oninput = function() {
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loop_spacing_value.innerHTML = loop_spacing_slider.value;
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myChart.data.datasets[0].data = calculateRadiationResistance();
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myChart.data.datasets[1].data = calculateInductiveReactance();
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myChart.data.datasets[2].data = calculateTuningCapacitor();
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myChart.data.datasets[3].data = calculateLossResistance();
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myChart.data.datasets[4].data = calculateQualityFactor();
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myChart.update();
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}
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@ -197,7 +260,8 @@
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var myChart = new Chart(chartCanvasContext, {
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type: 'line',
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data: {
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datasets: [{
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datasets: [
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{
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label: 'Radiation Resistance \u03A9',
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fill: false,
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borderColor: 'red',
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@ -223,6 +287,24 @@
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data: calculateTuningCapacitor(),
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borderWidth: 1,
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yAxisID: 'pfID'
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},
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{
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label: 'Loss Resistance \u03A9',
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fill: false,
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borderColor: 'orange',
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backgroundColor: 'orange',
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data: calculateLossResistance(),
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borderWidth: 1,
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yAxisID: 'mohmsID'
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},
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{
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label: 'Efficiency',
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fill: false,
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borderColor: 'black',
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backgroundColor: 'black',
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data: calculateQualityFactor(),
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borderWidth: 1,
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yAxisID: 'effID'
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}]
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},
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options: {
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@ -270,6 +352,17 @@
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},
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position: 'right',
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id: 'pfID'
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},{
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type: 'linear',
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display: true,
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scaleLabel: {
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display: true,
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labelString: 'Efficiency',
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fontColor: 'black',
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fontStyle: 'bold'
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},
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position: 'right',
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id: 'effID'
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}]
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},
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showLines: true
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