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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Analysis of HTS circular patch antennas including radome effects
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Analysis of HTS circular patch antennas including radome effects

机译：包含天线罩效应的HTS圆形贴片天线分析

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摘要

In this paper, the resonant frequencies, quality factors and bandwidths of high T-c superconducting circular microstrip patches in the presence of a dielectric superstrate loading have been studied using Galerkin testing procedure in the Hankel transform domain. The exact Green's function of the grounded dielectric slab is used to derive an electric field integral equation for the unknown current distribution on the circular disc. Thus, surface waves, as well as space wave radiation, are included in the formulation. London's equations and the two-fluid model of Gorter and Casimir are used in the calculation of the complex surface impedance of the superconducting circular disc. Galerkin testing is used in the resolution of the electric field integral equation. Two solutions using two different basis sets to expand the unknown disk currents are developed. The first set of basis functions used is the complete set of transverse magnetic and transverse electric modes of a cylindrical cavity with magnetic side walls. The second set of basis functions used employ Chebyshev polynomials and enforce the current edge condition. The computed values for a wide range of variations of superstrate thickness and dielectric constant are compared with different theoretical and experimental values available in the open literature, showing close agreement. Results are showing that the superstrate parameters should always be kept into account in the design stage of the superconducting microstrip resonators.
机译：在本文中，在Hankel变换域中使用Galerkin测试程序研究了高T-c超导圆形微带斑片在存在介电上覆层载荷的情况下的共振频率，品质因数和带宽。接地电介质板的确切格林函数用于导出圆盘上未知电流分布的电场积分方程。因此，制剂中包括表面波以及空间波辐射。计算超导圆盘的复数表面阻抗时，使用伦敦方程和Gorter和Casimir的二流体模型。 Galerkin测试用于电场积分方程的解析。开发了两种使用两个不同基集扩展未知磁盘电流的解决方案。使用的第一组基础函数是具有磁性侧壁的圆柱腔的横向磁模式和横向电模式的完整集合。使用的第二组基本函数采用Chebyshev多项式并强制执行当前边沿条件。将覆盖层厚度和介电常数变化范围很大的计算值与公开文献中提供的不同理论和实验值进行了比较，显示出一致的观点。结果表明，在超导微带谐振器的设计阶段应始终考虑上覆层参数。

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