Monopulse pair — 2× ribbed PCB Yagi

Σ 11.6 dBi (+2.8 dB array) · Σ F/B 14.8 dB · Δ null −23 dB · ±26° Δ lobes · 240 mm (0.73λ) · ideal coupler

⬗ stack-up: FR4 1.6 mm (εr 4.3) · 1 oz Cu (35 µm) · ribbed frame

← all designs

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

0510510152025−5 dB bg · harsh−15 dB bg · nominalSNR 5 dB (bg −5 dB) → SRL 12.0° (≈ 21.1 m apart @ 100 m)12.0°SNR 10 dB (bg −10 dB) → SRL 8.0° (≈ 14.0 m apart @ 100 m)SNR 15 dB (bg −15 dB) → SRL 4.9° (≈ 8.5 m apart @ 100 m)4.9°SNR 20 dB (bg −20 dB) → SRL 1.3° (≈ 2.3 m apart @ 100 m)SNR 25 dB (bg −25 dB) → SRL 1.0° (≈ 1.7 m apart @ 100 m)SNR = signal − background (dB) · background = −SNRSRL — resolvable separation (°)Statistical resolution limit — two unresolved targets (Σ HPBW 36°, 0.73λ)ribbed Yagi element (full-wave) × array factor · GLRT 1-vs-2 · CFAR 5% · 5 dB interferer · 014z model
ribbed_monopulse.jsonribbed_monopulse_spacing.jsonribbed_monopulse.dxf