Characteristic Comparison between Electric Currents on Upper and Lower Surfaces of Patch Conductor in a Microstrip Antenna

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概要

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• The electric currents on the upper, lower and side surfaces of the patch conductor in a circular microstrip antenna are calculated by using the integral equation method and the characteristic between the electric currents on the upper and lower surfaces is compared. The integral equation is derived from the boundary condition that the tangential component of the total electric field due to the electric currents on the upper, lower and side surfaces of the patch conductor vanishes on the upper, lower and side surfaces of the patch conductor. The electric fields are derived by using Green's functions in a layered medium due to a horizontal and a vertical electric dipole on those surfaces. The result of numerical calculation shows that the electric current on the lower surface is much bigger than that on the upper surface and the input impedance of microstrip antenna depends on the electric current on the lower surface.

• 社団法人電子情報通信学会の論文
• 2005-02-01

著者

• Fujimoto Takafumi

  Division Of System Science Graduate School Of Science And Technology Nagasaki University

• Fujimoto T

  The Deprtment Of Electricaland Electronic Engineering Faculty Of Engineering Nagasaki University

• TANAKA Kazumasa

  Department of Electrical and Electronic Engineering, Faculty of Engineering, Nagasaki University

• TAGUCHI Mitsuo

  Department of Electrical and Electronic Engineering, Faculty of Engineering, Nagasaki University

• Tanaka Kazumasa

  Department Of Chemistry Faculty Of Science Tokyo University Of Science

• Tanaka K

  Department Of Electrical And Electronic Engineering Faculty Of Engineering Nagasaki University

• Taguchi Mitsuo

  Department Of Electrical And Electronic Engineering Faculty Of Engineering Nagasaki University

• FUJIMOTO Takafumi

  Division of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagasaki University

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