Plane-wave characterization of antennas close to a planar interface |
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Authors: | Meincke P Hansen TB |
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Affiliation: | Orsted-DTU, Tech. Univ. of Denmark, Lyngby, Denmark; |
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Abstract: | The plane-wave scattering matrix is used to characterize antennas that are located just above a planar interface that separates two media. The plane-wave transmitting spectrum for the field radiated downward into the lower medium is expressed directly in terms of the current distribution of the transmitting antenna. The transmitting spectrum for a reciprocal antenna determines the plane-wave receiving spectrum for the field that propagates upward in the lower medium. A measurement procedure is discussed for determining the plane-wave transmitting and receiving spectra from measurements with a probe that is located in the lower medium. |
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