| 摘要 |
In a method for coupling an electromagnetic signal between an electromagnetic signal source and an electromagnetic waveguide, wherein, in use, there is relative movement between the source and the waveguide, at each side where the source is launched into the waveguide, the properties of the waveguide are modified to permit the signal to be coupled into the waveguide, and the signal is launched into the waveguide at each site. At each site, the modification is reversed after launching the signal, so that the signal launched into the waveguide propagates along the waveguide. The process is repeated for each launch site along the waveguide. An electromagnetic coupler operates according to this method.
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