239 lines
10 KiB
HTML
239 lines
10 KiB
HTML
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<title>Magnetic loop antenna calculator for round copper construction</title>
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<h1>Magnetic loop antenna calculator for round copper construction</h1>
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</div>
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</div>
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</div>
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</div>
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</section>
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<section>
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<div class="container">
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<div class="row" id="app">
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<div class="col-md-1"></div>
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<div class="col-md-5">
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<form class="form-horizontal" role="form">
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<div class="form-inline">
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<label><b>Frequency (MHz)</b> </label>
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<input type="number" step="0.01" class="form-control" v-model="frequency" placeholder="Frequency (MHz)">
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</div><br>
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<div class="form-inline">
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<label><b>Loop conductor length (m)</b> </label>
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<input type="number" class="form-control" v-model="leng" placeholder="Loop conductor length (m)">
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</div><br>
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<div class="form-inline">
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<label><b>Conductor diameter (mm)</b> </label>
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<input type="number" class="form-control" v-model="diameter" placeholder="Conductor diameter (mm)">
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</div><br>
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<div class="form-inline">
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<label><b>RF power (W)</b> </label>
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<input type="number" class="form-control" v-model="power" placeholder="RF power (W)">
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</div>
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</form>
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</div>
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<div class="col-md-6">
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<h5>Calculation results: </h5>
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<h5>Inductance (uH) {{inductance}}</h5>
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<h5>Capacitance (pF) {{capacitance}}</h5>
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<h5>XL = XC (ohms) {{lxlc}}</h5>
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<h5>Distributed C (pF) {{distributed}}</h5>
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<h5>Tuning capacitance (pF) {{tuning_capacitance}}</h5>
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<h5>Main loop diameter (m) {{main_loop_diameter}}</h5>
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<h5>Feeding loop diameter (m) {{feeding_loop_diameter}}</h5>
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<h5>Radiation resistance (ohms) {{radiation_resistance}}</h5>
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<h5>Loss resistance (ohms) {{loss_resistance}}</h5>
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<h5>Parallel resistance (kohms) {{parallel_resistance}}</h5>
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<h5>Efficiency (%) {{efficiency}}</h5>
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<h5>Compared to ideal loop (dB) {{ctil}}</h5>
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<h5>Loaded Q {{lq}}</h5>
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<h5>Bandwidth -3dB (kHz) {{bandwidth}}</h5>
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<h5>Capcitor rms voltage (V) {{crv}}</h5>
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</div>
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</div>
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<div class="text-center">
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<hr>
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<h5>Algorithm source: I6IBE / OH7SV (<a href="http://www.radioamatoripeligni.it/i6ibe/loopflat/loopcalculator.xls">Source</a>)</h5>
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<h5>Language translation: Bigsk</h5>
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</div>
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</div>
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</section>
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<hr>
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<script>
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new Vue({
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el: '#app',
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data: {
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frequency: 3.7,
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leng: 8,
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diameter: 22,
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power: 100
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},
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computed: {
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inductance: function() {
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return 0.0000000623 * parseInt(this.leng) * (7.353 * Math.log10((8 * parseInt(this.leng)) / (Math.PI * parseInt(this.diameter) / 1000)) - 6.386) * 1000000
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},
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capacitance: function() {
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return 1 / (Math.pow((2 * Math.PI * this.frequency * 1000000), 2) * this.inductance / 1000000) * 1000000000000
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},
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lxlc: function() {
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return 1 / (2 * Math.PI * this.frequency * 1000000 * this.capacitance * 0.000000000001)
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},
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distributed: function() {
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return 2.69 * this.leng
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},
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tuning_capacitance: function() {
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return this.capacitance - this.distributed
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},
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main_loop_diameter: function() {
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return this.leng / Math.PI
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},
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feeding_loop_diameter: function() {
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return this.main_loop_diameter / 5
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},
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radiation_resistance: function() {
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return 0.0000000338 * Math.pow((Math.pow(this.frequency, 2) * 10.76 * Math.PI * Math.pow(this.main_loop_diameter, 2) / 4), 2)
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},
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loss_resistance: function() {
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return 0.08298 * Math.sqrt(this.frequency) * this.leng / this.diameter
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},
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parallel_resistance: function() {
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return 0.001 * this.lxlc * this.lq
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},
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efficiency: function() {
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return 100 * this.radiation_resistance / (this.radiation_resistance + this.loss_resistance)
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},
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ctil: function() {
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return 10 * Math.log10(this.efficiency / 100)
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},
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lq: function() {
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return this.lxlc / (2 * (this.radiation_resistance + this.loss_resistance))
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},
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bandwidth: function() {
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return 1000 * this.frequency / this.lq
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},
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crv: function() {
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return Math.sqrt(this.power * this.lxlc * this.lq)
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}
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}
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})
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let date = new Date();
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</script>
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