Efficient analysis of electromagnetic radiation from microstrip antenna using volume-surface current contunuity method

• Published in: Journal of electronics (China) Vol. 29; no. 6; pp. 567 - 571
• Main Authors: Yuan, Jiade, Su, Kaixiong, Ye, Yuhuang
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Science Press 2012; College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China
• Subjects: Electrical Engineering; Engineering; Volume-Surface Current Continuity Method (VSCCM); TN820; Volume-Surface Integral Equation (VSIE); Method of Moments (MoM); Microstrip antenna
• ISSN: 0217-9822; 1993-0615
• DOI: 10.1007/s11767-012-0882-z

The Volume-Surface Current Continuity Method (VSCCM) is presented to analyze electromagnetic radiation from microstrip antenna. The microstrip antenna is discretized into small triangular patches on conducting surface and tetrahedral volume cells in dielectric region. The Method of Moments (MoM) is applied to solve the integral equation. An equation contains the restriction relation between the volume and surface current coefficient is derived from the current continuity equation at those parts where the conducting surface is in contact with the dielectric material. A simple equivalent strip model is introduced in the treatment of the feeding probe in VSCCM. The VSCCM can reduce the unknowns required to be solved in MoM, as well as the condition number of the matrix equation. Numerical results are given to validate the accuracy and efficiency of this method.