June 1984 | NTIA Technical Report NBSR 84-3010

Comparison of Measured and Calculated Mutual Coupling in the Near Field Between Microwave Antennas

doi: 10.6028/NBS.IR.84-3010

Carl F. Stubenrauch; Michael H. Francis

Abstract: Measurements of near-field mutual coupling were performed between two moderate sized microwave antennas and compared to coupling calculated using recently developed computer programs. Input data for the programs are the complex far-field radiation patterns of the antennas. Experimentally determined and calculated coupling as a function of both transverse displacement and separation agree closely except for a constant offset observed in some cases. In addition, coupling values computed using a program which approximates the far-field radiation patterns were compared to experiment and found to be satisfactory.

Keywords: mutual coupling; coupling loss; co-sited antennas; far fields; near fields

Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

Back to Search Results