|
Plane wave |
|
Slow wave |
|
Vertical reflection |
|
Quarter-wave plate |
|
Quarter-wave resonator |
|
Half-wave plate |
|
Half-wave resonator (open) |
|
Half-wave resonator (short) |
|
circular thread |
|
charged plate |
|
electrical stress between the conductors |
|
one thread carrying a current |
|
two threads |
|
long thin coil in the air |