Analysis and design of a leakywave EMC dipole array
Abstract
An analysis of an electromagnetically coupled (EMC) dipole array is presented, in which a microstrip line is coupled to an infinite periodic linear array of microstrip dipoles, arranged perpendicular to the line. The spectraldomain immitance method is used to obtain the periodic Green's function for the twolayered structure, and the method of moments with a Galerkin testing procedure is then used to enforce the electric field integral equation (EFIE) on the line and the dipole within a unit cell of the structure to obtain the determinantal equation for the unknown leakywave propagation constant. One of the interesting features of this analysis is the path of integration in the complex plane used to compute the moment method reactions, which must be partly on the improper sheet for the m = 1 space harmonic when it radiates in the forward direction. Measured radiation patterns for a 10element EMC dipole array are presented and compared with the corresponding theoretical ones.
 Publication:

IEEE Transactions on Antennas and Propagation
 Pub Date:
 August 1992
 DOI:
 10.1109/8.163433
 Bibcode:
 1992ITAP...40..950P
 Keywords:

 Antenna Arrays;
 Antenna Design;
 Dipole Antennas;
 Electromagnetic Coupling;
 Linear Arrays;
 Electric Fields;
 Integral Equations;
 Network Analysis;
 Communications and Radar