摘要:
There is provided provided a frequency selective surface (FSS) structure for filtering a single frequency band, including: a plurality of unit cells arranged at a predetermined distance, wherein each of the unit cells includes: a substrate; a circular loop formed on the substrate with a predetermined width and having at least one of meanderingly bent portions, wherein a filtering frequency band is controlled by a length of the circular loop, a width of the circular loop, a distance between the unit cells, and a thickness and dielectric constant of dielectric.
摘要:
Provided are a dipole tag antenna using an artificial magnetic conductor (AMC) for wireless identification and a wireless identification system using the dipole tag antenna. The dipole tag antenna includes: a substrate formed of a first dielectric material; a conductive ground layer formed underneath the substrate; an AMC layer formed on the substrate; the dipole tag antenna mounted on the AMC layer and comprising a wireless identification chip; and the AMC directly mounted on a conductor.
摘要:
There is provided provided a frequency selective surface (FSS) structure for filtering a single frequency band, including: a plurality of unit cells arranged at a predetermined distance, wherein each of the unit cells includes: a substrate; a circular loop formed on the substrate with a predetermined width and having at least one of meanderingly bent portions, wherein a filtering frequency band is controlled by a length of the circular loop, a width of the circular loop, a distance between the unit cells, and a thickness and dielectric constant of dielectric.
摘要:
Provided are a dipole tag antenna using an artificial magnetic conductor (AMC) for wireless identification and a wireless identification system using the dipole tag antenna. The dipole tag antenna includes: a substrate formed of a first dielectric material; a conductive ground layer formed underneath the substrate; an AMC layer formed on the substrate; the dipole tag antenna mounted on the AMC layer and comprising a wireless identification chip; and the AMC directly mounted on a conductor.
摘要:
A method of reducing electromagnetic field using metamaterial and a terminal having a structure for reducing an electromagnetic field using a metamaterial are provided. The method includes the steps of: deciding a body contacting part of a portable terminal or a wearable terminal; and disposing an electromagnetic field absorption member formed of metamaterial between an antenna and the decided body contacting part.
摘要:
Provided are a high impedance surface structure using an AMC (artificial magnetic conductor) and an antenna and an electromagnetic device using the high impedance surface structure. The high impedance surface structure includes: a ground layer formed of a first conductor layer; a first dielectric layer formed on the ground layer; and an HIS (high impedance surface) layer formed of second conductor layers and a second dielectric layer on the first dielectric layer, wherein the second conductor layers are interdigitated with one another and vias connecting the second conductor layers to the ground layer are not formed.
摘要:
A method of reducing electromagnetic field using metamaterial and a portable or wearable terminal having a structure for reducing an electromagnetic field using a metamaterial are provided. The method includes deciding a body contacting part of the portable or wearable terminal; and disposing an electromagnetic field reducing unit formed of metamaterial between an antenna and the decided body contacting part, wherein the metamaterial including a conductor and a dielectric adjusts a permittivity.
摘要:
Provided are a tag antenna for wireless identification and a wireless identification system including the tag antenna. The tag antenna includes: a substrate formed of a first dielectric; a conductive ground layer formed underneath the substrate; an AMC layer formed on the substrate; and a wireless identification chip adhered onto the AMC layer.
摘要:
Provided are a tag antenna for wireless identification and a wireless identification system including the tag antenna. The tag antenna includes: a substrate formed of a first dielectric; a conductive ground layer formed underneath the substrate; an AMC layer formed on the substrate; and a wireless identification chip adhered onto the AMC layer.
摘要:
An antenna system includes an antenna transmitting and receiving a signal; a power feeding line feeding electric power to the antenna; and a metal conductor ground electrically connected to the power feeding line. Further, the metal conductor ground includes an electromagnetic bandgap.