Electric surface current model for the analysis of microstrip antennas with application to rectangular elements

An approach to the analysis of microstrip antennas which is applicable also to relatively thick substrates using the relevant Green's function is presented. The Green's function is derived and closed form expressions for various antenna characteristics which explicitly take into account the presence of the dielectric material are obtained in terms of the electric surface current density. For rectangular microstrip elements near resonance the current distribution is approximated using lossless transmission line analysis, thus enabling the complete evaluation of the characteristics of the element near resonance. The results obtained in this approach for the radiation resistance, surface wave resistance, radiation pattern, directivity, and bandwidth are presented in a detailed set of graphs for a representative set of parameters.

[1]  M. Bailey,et al.  Integral equation formulation of microstrip antennas , 1982 .

[2]  N. Alexopoulos,et al.  Current distribution and input impedance of printed dipoles , 1981 .

[3]  David M. Pozar,et al.  Considerations for millimeter wave printed antennas , 1983 .

[4]  Juan R. Mosig,et al.  A Dynamical Radiation Model for Microstrip Structures , 1982 .

[5]  Y. Lo,et al.  An Improved Theory for Microstrip Antennas and Applications. Part I. , 1979 .

[6]  A. Derneryd.  Linearly polarized microstrip antennas , 1976 .

[7]  K. Carver,et al.  Microstrip antenna technology , 1981 .

[8]  J. A. Kong,et al.  Analysis of a circular microstrip disk antenna with a thick dielectric substrate , 1981 .

[9]  D. Pozar.  Input impedance and mutual coupling of rectangular microstrip antennas , 1982 .

[10]  P. Perlmutter,et al.  A modular approach for the design of microstrip array antennas , 1983 .

[11]  Weng Cho Chew,et al.  The equivalence of the electric and magnetic surface current approaches in microstrip antenna studies , 1980 .

[12]  L. J. V. D. Pauw,et al.  The Radiation of Electromagnetic Power by Microstrip Configurations , 1977 .

[13]  M. V. Schneider,et al.  Microstrip lines for microwave integrated circuits , 1969 .

[14]  D. Chang.  Analytical theory of an unloaded rectangular microstrip patch , 1981 .

[15]  Analytic determination of dipole reactance by radiation-pattern integration , 1967 .

[16]  N. Uzunoglu,et al.  Radiation properties of microstrip dipoles , 1979 .

[17]  A. Giarola,et al.  Influence of surface-wave excitation on efficiency of space-wave launching in microstrip disc antennas , 1982 .