Title :
General model of a planar antenna
Author_Institution :
Tech. Univ. of Gdansk, Poland
Abstract :
Presents a general modelling method of a planar antenna element for determining the directivity and the impedance properties of the single antenna element and the antenna array. The radiation effect of a planar antenna is dependent on the fringing field between microstrip patch edge and the ground plane. The fringing field distribution around the planar patch edge is determined by the linear form of the wave equation in which the Green´s function approach was applied. The multiport model of dependence between the current excitation of the planar antenna and the voltage distribution surrounding the planar element is described in a matrix form which consists of column matrices of the edge voltage distribution and current excitation, and a square impedance matrix of the mutual impedance between ports of the model. The computational procedure of the general model is outlined
Keywords :
Green´s function methods; antenna radiation patterns; matrix algebra; microstrip antennas; microwave antenna arrays; Green´s function approach; antenna array; antenna element; column matrices; current excitation; directivity; fringing field; ground plane; impedance properties; microstrip patch edge; modelling method; multiport model; mutual impedance; planar antenna; planar patch edge; radiation effect; square impedance matrix; voltage distribution; wave equation;
Conference_Titel :
Antennas and Propagation, 1993., Eighth International Conference on
Conference_Location :
Edinburgh
Print_ISBN :
0-85296-572-9
