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arXiv 1706.04873cond-mat.dis-nn
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全混沌混响室强重叠区的反射和透射统计

Statistics of Reflection and Transmission in the Strong Overlap Regime of Fully Chaotic Reverberation Chambers

Ulrich Kuhl, Olivier Legrand, Fabrice Mortessagne, Khalid Oubaha, Martin Richter

摘要:

我们已经实验研究了一个混乱的混响室在政权的强模式重叠($1{<}d{<}150$)变化的开放以及耦合强度$κ$的两个连接的天线。我们发现一个很好的协议,通过有效的哈密顿形式主义,使用随机矩阵理论获得的反射$R=|S_{ii}|^2$和传输$T=|S_{21}|^2$的数值分布。进入数值的两个参数$κ$和衰减率$τ$预先通过实验确定。此外,我们还验证了Schroeder和Kuttruff预测的最大透射率$\langleδf_{max}\rangle$的平均频率间隔与衰减率之间的关系。

英文摘要:

We have experimentally investigated a chaotic reverberation chamber in the regime of strong modal overlap ($1{<}d{<}150$) varying the opening as well as the coupling strength $κ$ of the two attached antennas. We find a good agreement with numerical distribution of the reflection $R=|S_{ii}|^2$ and transmission $T=|S_{21}|^2$ obtained via the effective Hamiltonian formalism using random matrix theory. The two parameters entering the numerics, $κ$ and the decay rate $τ$ were determined beforehand experimentally. Additionally we verified the relation predicted by Schroeder and Kuttruff for acoustic rooms between the averaged frequency spacing of maximal transmission $\langleδf_{max}\rangle$ and the decay rate.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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