| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless antenna which allows for formation of a service area easily at a low cost.SOLUTION: A wireless antenna 100 includes a cable-like waveguide 110, constituted of a core formed of a dielectric, and a coating part formed of a dielectric on the outer periphery of the core. The dielectric constant of the core is larger than that of the coating part, and a part of the waveguide 110 can function as a radiation part 110c for radiating electromagnetic waves, when it is held while being bent so that the electromagnetic waves are radiated. When the bent state is eliminated, the part of the waveguide 110 where the bent state is eliminated loses the function as the radiation part 110c and functions as a waveguide.SELECTED DRAWING: Figure 1 |
