Abstract: The present invention comprises: a main body part having a plurality of printed surfaces that are partitioned so as to be exposed to the front; a chocolate part which has a plurality of accommodation regions that are partitioned so as to correspond to the printed surfaces, and which is formed so that the same designs as the designs of the printed surfaces are exposed to the front when placed inside the accommodation regions; and a support part which is provided at the rear of the main body part and which enables the main body part to be selectively supported.

Abstract: An antenna device according to an embodiment of the present invention includes a dielectric layer, a first radiator disposed on the dielectric layer in a first direction, a second radiator formed in a shape different from that of the first radiator and disposed on the dielectric layer in a second direction, a first transmission line which extends in the first direction to be connected to the first radiator, and a second transmission line which extends in the second direction to be connected to the second radiator, and intersects the first transmission line with being physically or electrically spaced apart therefrom.

Abstract: Provided is a method of manufacturing an ethylene-acrylic acid copolymer including the step of (S1) supplying an ethylene monomer and an acrylic acid comonomer to a polymerization reactor to manufacture an ethylene-acrylic acid copolymer; (S2) supplying an acrylic acid comonomer-containing mixture discharged from a front or rear end of the polymerization reactor and a cleaning solvent to a cleaning unit; and (S3) dissolving an polyacrylic acid derived from the acrylic acid comonomer contained in the mixture in the cleaning solvent. The cleaning solvent includes a polyhydric alcohol-based solvent.

Abstract: A circuit board according to an embodiment includes a core layer including a first region and a second region, and antenna power supply wirings disposed on the core layer over the first region and the second region. The antenna power supply wirings may include a first portion extending in a first direction in the first region, a second portion extending in a second direction in the first region, and a third portion extending in the first direction in the second region, and an interval between the neighboring second portions of the antenna power supply wirings is 3 times or less of an interval between the neighboring third portions of the antenna power supply wirings.

Abstract: The present invention comprises: a main body part having a plurality of printed surfaces that are partitioned so as to be exposed to the front; a chocolate part which has a plurality of accommodation regions that are partitioned so as to correspond to the printed surfaces, and which is formed so that the same designs as the designs of the printed surfaces are exposed to the front when placed inside the accommodation regions; and a support part which is provided at the rear of the main body part and which enables the main body part to be selectively supported.