Abstract

The paper considers an infinite two-dimensional ultra-wideband two-section antenna array in which the first section is made in the form of an isolated block connected to the second section via a special transition. Based on an approximate solution of a boundary value problem, an analytical model of the transition, making it possible to calculate its scattering matrix, is constructed. The scattering and transfer matrices of the first and second sections of the array in the quasi-periodic excitation mode are found in the approximation of the theory of microwave transmission lines. The total transfer matrix of the entire array is determined by multiplying the transfer matrices of its components. The numerically constructed analytical model of the array makes it possible to calculate its scattering matrix in the scan mode and has a high computational efficiency. The results of calculations by the proposed approximate model are compared with the results given by rigorous full-wave methods.

中文翻译：

---

第一节屏蔽的单极化两节超宽带天线阵列

摘要

本文考虑了一个无限二维超宽带双节天线阵列，其中第一节以孤立块的形式制成，通过特殊过渡连接到第二节。基于边值问题的近似解，构建了过渡的解析模型，使得计算其散射矩阵成为可能。准周期激发模式下阵列第一和第二部分的散射和传递矩阵在微波传输线理论的近似中找到。整个阵列的总传递矩阵是通过乘以它的组件的传递矩阵来确定的。阵列的数值构造解析模型使得在扫描模式下计算其散射矩阵成为可能，具有较高的计算效率。将所提出的近似模型的计算结果与严格的全波方法给出的结果进行比较。