Analysis of Conductorless Antennas

本课题旨在研究介质谐振器辐射结构的特性。含有介电材料的天线在高微波频率范围内比微带和类似的金属天线更有效率和更经济。圆形介质盘辐射器将用作研究的基本辐射元件，但其他配置，例如使用几层介质以使元件适合在更大的频率范围内使用，也可以进行研究，以更好地了解各种参数对天线性能的影响。介电结构的严格数值建模将基于表面积分方程式，但在适当的情况下也将使用其他数值方法，如有限积分技术。精密测量将包括辐射方向图、辐射效率和输入阻抗调查，并将用于验证在各种配置下获得的理论结果。分析了无导体介质谐振器天线的不同激励方式，以及不同的天线结构。这三名研究人员将涵盖无导体天线的数值方面、电磁系统方面和实验方面。

In this project it is proposed to investigate the characteristics of dielectric resonator radiating structures. Antennas comprising dielectric material are expected to be more efficient and more economical in the high microwave frequency range than are microstrip and similar metal antennas. The circular dielectric disk radiator will serve as the fundamental radiating element for the study, but other configurations, such as the use of several layers of dielectric to make the element suitable for use over an increased range of frequencies, may also be investigated to better understand the effects of various parameters on the performance of the antenna. Rigorous numerical modeling of the dielectric structure will be based on the Surface Integral Equation Formulation, but other numerical methods such as the Finite Integration Technique will also be used where appropriate. Precision measurements will consist of radiation pattern, radiation efficiency, and input impedance investigations, and will serve to validate the theoretical results obtained for various configurations. Different excitation methods for the conductorless dielectric resonator antenna, as well as different antenna configurations, will be analyzed. The three investigators will cover the numerical aspects, the electromagnetic system aspects, and the experimental aspects of the conductorless antennas.