Design and Modeling of Electromagnetic Impedance Surfaces to Reduce Coupling between Antennas

• 作者: Eric R. Hedin Jangsik Cho Jean-Fran?ois D. Essiben Yong S. Joe
• 来源期刊: 无线工程与技术(英文)
• 学科: 数学
• 关键词: COUPLING WAVEGUIDE IMPEDANCE Structure ELECTROMAGNETIC Compatibility
• 年，卷（期）: 2012,（3）
• 页码范围: 152-159
• 页数: 8页
• 分类号: O1

摘要

We study the coupling problem of two waveguide antennas using the design of a two-dimensional inhomogeneous impedance structure with a fixed reflected field. Since this structure enables electromagnetic compatibility between antennas located on a plane, the behaviors of the electromagnetic field along the impedance structure are investigated. The method of moments is used to solve the integral equations and the numerical results are presented and analyzed. To reduce coupling between antennas, we need to take into account both the amplitude distribution of the field along the structure and in the openings of the antennas. In addition, while designing the structure, it is necessary to control the coefficient of decoupling.