Power transmitting communication unit and power transmitting communication device
An electric transmission communication unit and an electric reception communication unit are arranged on a base material, and include a flat plate-like first electrode that transmits electric power in a non-contact manner, a flat plate-like second electrode that is arranged side by side with the first electrode on the base material and transmits electric power in a non-contact manner, and a slot antenna that transmits or receives radio waves via a slit formed on the first electrode. For a power transmitting communication device, the first electrode and the second electrode of the electric transmission communication unit are arranged being opposed to the first electrode and the second electrode of the electric reception communication unit so that power transmission can be performed, and the slot antenna of the electric transmission communication unit is arranged being opposed to the slot antenna of the electric reception communication unit in a communicable manner.
1. A power transmitting communication unit comprising:
a base material;
a flat plate-like first electrode that is arranged on the base material and transmits electric power for supplying a load in a non-contact manner;
a flat plate-like second electrode that is arranged side by side with the first electrode on the base material, and transmits electric power for supplying the load in a non-contact manner; and
a slot antenna that transmits or receives radio waves via a slit formed on at least one of the first electrode and the second electrode, the radio waves being for communication and different from the electric power supply to the load.
2. The power transmitting communication unit according to claim 1 , wherein the slit is formed in a rectangular shape, a length of a long side of the slit is ½ of a wavelength of the radio waves, and a length of a short side of the slit is equal to or smaller than 1/30 of the wavelength of the radio waves.
3. The power transmitting communication unit according to claim 1 , further comprising: a signal input/output circuit that is connected to the slot antenna via a signal line and inputs/outputs an electric signal to the slot antenna.
4. The power transmitting communication unit according to claim 3 , wherein the slot antenna includes a power feeding point to which the signal line is connected, and the power feeding point is arranged at a center of the long side of the slit.
5. The power transmitting communication unit according to claim 1 , wherein the slit is formed in a rectangular shape, and the slot antenna includes a short-circuit part that electrically connects one long side with the other long side of the slit.
6. The power transmitting communication unit according to claim 5 , wherein the short-circuit part is arranged along a direction orthogonal to the long side of the slit, and positioned closer to an end with respect to the center of the long side of the slit.