Inset Feed Calculator Better May 2026

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[ R_in(y=y_0) = R_in(y=0) \cdot \cos^2\left(\frac\pi y_0L\right) ] inset feed calculator

<div class="input-group"> <label>🔌 Feed line impedance, Z_feed (Ω)</label> <input type="number" id="zfeed" placeholder="e.g., 50" value="50"> <div class="hint">Usually 50 Ω for standard systems</div> </div> div id="errorMsg" class="error" style="display: none

<script> function calculateInset() // Get values let L = parseFloat(document.getElementById('length').value); let Redge = parseFloat(document.getElementById('redge').value); let Zfeed = parseFloat(document.getElementById('zfeed').value); 🔌 Feed line impedance

<div class="input-group"> <label>⚡ Edge resistance, R_edge (Ω)</label> <input type="number" id="redge" placeholder="e.g., 200" value="200"> <div class="hint">Typical range: 150–250 Ω (depends on width & substrate)</div> </div>

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