Characteristics of circular polarization of elliptical microstrip antenna with full-wave analysis considering the attachment mode

✍ Scribed by Hooin Jung; Chulhun Seo

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 153 KB
• Volume: 22
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(19990720)22:2<111::aid-mop10>3.0.co;2-f

✦ Synopsis

In this paper, we present the characteristics of circular polarization of an elliptical microstrip patch fed by a coaxial probe through the method of moments in conjunction with the reaction integration method. After obtaining the general Green's function, the input impedance was calculated by superposition of two circular patches whose radii pertain to the major and minor axes of the elliptical patch, respecti¨ely, and then the characteristics of circular polarization are shown. The attachment mode was contained to ensure the continuity and singularity of the currents at the patch᎐probe conjunction point, and plays a role in accelerating the con¨ergence for sol¨ing matrix equations. Results showed that the elliptical patch can be used to generate circular polarization characteristics with one probe feed, and attachment modes also should be contained in the formulation to obtain the exact impedance.