One-piece folded sheet Yagi (CNC)

9.9 dBi · F/B 18 dB · smooth driven · CNC DXF + M2 feed

⬗ stack-up: Al / brass sheet 1.0–1.5 mm · free-space (no substrate)

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Statistical resolution limit (SRL) — closest two targets tellable apart vs SNR · hover a point (session 014z DF model)

051015510152025−5 dB bg · harsh−15 dB bg · nominalSNR 5 dB (bg −5 dB) → SRL 16.0° (≈ 28.2 m apart @ 100 m)16.0°SNR 10 dB (bg −10 dB) → SRL 10.4° (≈ 18.2 m apart @ 100 m)SNR 15 dB (bg −15 dB) → SRL 5.9° (≈ 10.3 m apart @ 100 m)5.9°SNR 20 dB (bg −20 dB) → SRL 4.2° (≈ 7.4 m apart @ 100 m)SNR 25 dB (bg −25 dB) → SRL 1.4° (≈ 2.4 m apart @ 100 m)SNR = signal − background (dB) · background = −SNRSRL — resolvable separation (°)Statistical resolution limit — two unresolved targets (beam HPBW 54°)estimated beam · HPBW≈52° from 9.9 dBi (no scan) · GLRT 1-vs-2 · CFAR 5% · 5 dB interferer · 014z model
folded_yagi.dxffolded_yagi_smooth.jsonfolded_yagi.step