Infinite wavelength antenna device

An infinite wavelength antenna device comprising:

• a board body made of a dielectric and having a slab structure;
• a feed part formed as a bar extending in one direction on the upper surface of the board body, and generating a magnetic field when power is applied thereto;
• a mu negative (MNG) resonance part arranged on the upper surface of the board body so that a preset distance is maintained from the feed part and at least a portion thereof is placed within the magnetic field, having a transmission line in which a transmission gap of a given size is formed, having a transmission via formed at each of both ends of the transmission line and passing through the board body to extend from the upper surface thereof to the lower surface thereof, resonating at a specific frequency band when the magnetic field is generated, and having a negative permeability;
• and
• a ground part formed on the lower surface of the board body, connected with the transmission via, and grounding the MNG resonance part through the transmission via.

An infinite wavelength antenna device comprising:

• a board body made of a dielectric and having a slab structure;
• a feed part arranged on the upper surface of the board body, and generating a magnetic field when power is applied thereto;
• an epsilon negative (ENG) resonance part arranged on the upper surface of the board body so that a preset distance is maintained from the feed part and at least a portion thereof is placed within the magnetic field, resonating at a first frequency band when the magnetic field is generated, and having a negative permittivity;
• a mu negative (MNG) resonance part arranged on the lower surface of the board body so that a preset distance is maintained from the feed part and at least a portion thereof is placed within the magnetic field, resonating at a second frequency band different from the first frequency band when the magnetic field is generated, and having a negative permeability;
• and
• a ground part formed at one side of the MNG resonance part on the lower surface of the board body, and connected with one end of the feed part and one end of the ENG resonance part and further connected with both ends of the MNG resonance part to ground the feed part, the ENG resonance part and the MNG resonance part.