Moxon rectangle (deep rear null)

6.3 dBi · F/B ~30 dB (deep null, PML) · direct ~50Ω (56−j9, S11 −20 dB) · 44×117 mm (0.13λ×0.36λ) · published Cebik/AC6LA dims · 1.5 mm trace · 1:1 choke balun · F/worst-3D-lobe 5.1 dB

⬗ stack-up: 1.5 mm trace · 1 mm sheet metal/wire · 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)

0510152025510152025−5 dB bg · harsh−15 dB bg · nominalSNR 5 dB (bg −5 dB) → SRL 22.1° (≈ 39.1 m apart @ 100 m)22.1°SNR 10 dB (bg −10 dB) → SRL 14.6° (≈ 25.6 m apart @ 100 m)SNR 15 dB (bg −15 dB) → SRL 9.0° (≈ 15.8 m apart @ 100 m)9.0°SNR 20 dB (bg −20 dB) → SRL 5.2° (≈ 9.1 m apart @ 100 m)SNR 25 dB (bg −25 dB) → SRL 3.8° (≈ 6.7 m apart @ 100 m)SNR = signal − background (dB) · background = −SNRSRL — resolvable separation (°)Statistical resolution limit — two unresolved targets (beam HPBW 80°)real full-wave az beam · sequential-lobing Δ · GLRT 1-vs-2 · CFAR 5% · 5 dB interferer · 014z model
moxon.jsonmoxon_pattern.jsonmoxon.step