Guest Editorial Theory and Applications of Characteristic Modes

The theory of characteristic modes (TCM) is a versatile design and analysis tool that gives the unique possibility to determine the electromagnetic properties of a structure based only on its geometry and material properties. In antenna applications, this ability provides valuable insights into an antenna’s behavior independent of the feeding arrangement, as well as providing information about how desirable radiation modes can be excited. TCM had its humble beginnings in the early 1970s, largely through the pioneering works of Garbacz
[1]
and Harrington
[2]
, together with their co-workers.