Dataset for "The Entangled Field Model III: Position-Locked Ultra-Narrow Anomalies in a Shorted Waveguide"

This dataset contains one-port S-parameter (S11) measurements and analysis artifacts for a shorted WR-90 waveguide cavity with an adjustable piston. Selected runs exhibit a reproducible, position-locked interference notch whose Smith-chart trajectory grazes the origin (near-complete cancellation). All claims are Maxwell-compatible and framed in terms of a local scattering zero (“dark state”) at the port level; broader interpretive context is reserved for the associated manuscript’s Discussion.We provide: (i) raw VNA sweeps (magnitude/phase) with metadata; (ii) processed tables for the fixed ±300 kHz window showing the area–phase equality ∣A∣≈∣Δϕ_ex∣across sweep direction and IF bandwidth; (iii) peak group delay τ_pk, center frequency f_⋆, FWHM, and the delay-based narrowness metric Q_τ=πf_⋆ τ_pk; (iv) complex-plane one-pole circle fits with residual RMS normalized by the empirical complex-noise scale σ_Γ(values ≈1–2× indicate noise-limited fits); and (v) scripts/notebooks to regenerate the figures and tables.Absolute reflection depths near the minimum are reported as indicative and bounded (we state ∣Γ∣_min≲max⁡{∣Γ∣_min^⁡," " 5σ_Γ}); the key results are the processing-invariant diagnostics and noise-limited residuals. Control sweeps in the single-mode band show no analogous features. See the README for file layout, units, and exact reproduction steps.本数据集包含带可调活塞的短路WR-90波导腔的单端口S参数（S11）测量结果与分析衍生数据。部分选定的测试批次呈现出可复现的位置锁定型干扰陷波特征，其史密斯圆图（Smith-chart）轨迹掠过原点，对应近乎完全的信号抵消。所有结论均符合麦克斯韦方程组框架，并以端口层面的局域散射零点（“暗态”）为核心进行表述；更全面的解读语境将留待关联论文的讨论章节阐述。 本数据集提供以下内容： (i) 附带元数据的原始矢量网络分析仪（Vector Network Analyzer, VNA）扫频数据，包含幅度与相位信息； (ii) 针对固定±300kHz窗口生成的处理后表格，该表格展示了扫频方向与中频带宽范围内满足|A|≈|Δϕ_ex|的面积-相位守恒关系； (iii) 峰值群延迟τ_pk、中心频率f_⋆、半高全宽（Full Width at Half Maximum, FWHM），以及基于群延迟的窄度度量指标Q_τ=πf_⋆ τ_pk； (iv) 复平面上单极点圆拟合结果，其残差均方根（Root Mean Square, RMS）经经验复噪声尺度σ_Γ归一化，当数值约为1~2倍时表明拟合受噪声限制； (v) 用于复现所有图表与表格的脚本及Notebook文件。 最小值附近的绝对反射深度以指示性且有界的形式给出，我们规定|Γ|_min ≲ max{|Γ|_min^*, 5σ_Γ}；本数据集的核心结果为与信号处理流程无关的诊断指标，以及噪声受限残差。单模频段内的对照扫频实验未观测到类似的陷波特征。有关文件布局、量纲单位与精确复现步骤，请参阅README文档。