论文标题
设计，不确定性分析和基于硅的血小板瓦楞纸的测量
Design, Uncertainty Analysis and Measurement of a Silicon-based Platelet THz Corrugated Horn
论文作者
论文摘要
血小板波纹角是一项有前途的技术，用于扩展到大型瓦楞纸阵列。在本文中，我们介绍了宽带170-320 GHz血小板波纹角的设计，制造，测量和不确定性分析，该喇叭具有低侧孔（<-30 dB）的特征。我们还提出了一种准确而通用的方法，以首次分析血小板的轴向错位。它基于模式匹配（MM）方法，其封闭式解决方案是通过使用GRAF添加定理来获得Bessel函数获得的离轴圆形波导不连续性。制造中引入的不确定性已使用Monte Carlo方法进行了定量分析。该分析表明，瓦楞纸角的交叉极化随轴向未对准显着降解。它很好地解释了设计在THZ带中制造的血小板瓦楞角的设计与测量的交叉极化之间的差异。该方法可用于确定其他THZ瓦楞纸喇叭所需的制造耐受性，并评估瓦楞纸角对天文观测的影响。
Platelets corrugated horn is a promising technology for their scalability to a large corrugated horn array. In this paper, we present the design, fabrication, measurement and uncertainty analysis of a wideband 170-320 GHz platelet corrugated horn that features with low sidelobe across the band (<-30 dB). We also propose an accurate and universal method to analyze the axial misalignment of the platelets for the first time. It is based on the mode matching (MM) method with a closed-form solution to off-axis circular waveguide discontinuities obtained by using Graf addition theorem for the Bessel functions. The uncertainties introduced in the fabrication have been quantitatively analyzed using the Monte Carlo method. The analysis shows the cross-polarization of the corrugated horn degrades significantly with the axial misalignment. It well explains the discrepancy between the designed and the measured cross-polarization of platelets corrugated horn fabricated in THz band. The method can be used to determine the fabrication tolerance needed for other THz corrugated horns and evaluate the impact of the corrugated horn for astronomical observations.
