Analysis of slot coupling in a radial line slot antenna for DBS reception
Analysis of slot coupling in a radial line slot antenna for DBS reception
复制标题
用于 DBS 接收的径向线缝隙天线缝隙耦合分析
DOI：
10.1049/ip-h-2.1990.0049
复制
发表时间：
1990
期刊：
影响因子：
3.2
通讯作者：
N. Goto
中科院分区：
文献类型：
--
作者：
J. Hirokawa;M. Ando;N. Goto
径向线缝隙天线是一种非谐振多模波导缝隙天线阵。分析了该天线中缝隙与径向波导的耦合。本文用周期边界条件下的平行板波导模拟了RLSA中圆孔的频谱区。基于场等效定理，导出了一组槽内场的积分方程，并用伽辽金法进行了数值求解。理论结果有效地表达了各种天线设计参数对缝隙耦合的测量效果。
A radial line slot antenna (RLSA) is a nonresonant multimode waveguide slotted array. The slot coupling to the radial waveguide in this antenna is analysed. A parallel plate waveguide with a periodic boundary condition is used to simulate a sectral region of the circular aperture in a RLSA. A set of integral equations for the fields in the slot is derived, based on the field equivalence theorem, and is solved numerically by Galerkin's method. Theoretical results effectively express the measured effects of the various antenna design parameters on the slot coupling.