Abstract:
A housing of a mobile device including a frame defining a perimeter of the mobile device, the frame including a first metal material and configured to operate as a first antenna for a first wireless communication, and a cover configured to cover one surface of the mobile device, the cover including a second metal material, and the cover and at least a portion of the frame configured to operate as a second antenna for a second wireless communication may be provided.
Abstract:
A hard disk drive includes a voice coil motor yoke, a base to support the voice coil motor yoke, and formed of a material different from that of the voice coil motor yoke, and a thermal deformation prevention unit which is formed of a material that is substantially the same as that of the voice coil motor yoke, provided between the voice coil motor yoke and the base, and thereby preventing mechanical deformation due to different thermal expansion coefficients between the voice coil motor yoke and the base.
Abstract:
In one embodiment, the antenna arrangement includes a primary antenna having a conductive sidewall; and a loop antenna disposed in and physically separated from the primary antenna. The loop antenna includes a first conductive loop and a capacitor electrically connected between ends of the first conductive loop.
Abstract:
The present invention relates to terphenyl dihydroxy monomers containing fluorine and fluorinated poly(arylene ether sulfide)s prepared by using the monomers, more particularly, terphenyl dihydroxy monomers containing both two hydroxy functional groups and fluorine and fluorinated poly(arylene ether sulfide)s prepared by an aromatic nucleophilic substitution polymerization (SNAr) using the monomers, which are thus useful as optical materials in the field of information telecommunications.