Abstract: A pore-filled ion exchange polyelectrolyte composite membrane from which the surface ion exchange polyelectrolyte has been removed and a method of manufacturing the same are provided. The ion exchange polyelectrolyte composite membrane exhibits low film resistance and low in-plane-direction swelling degree, and has a smaller film-thickness than a commercial film, and thus, can be used for various purposes. In addition, since the pore-filled ion exchange polyelectrolyte composite membrane is continuously manufactured through a roll-to-roll process, the manufacturing process is simple, and manufacturing costs can be greatly reduced.

Abstract: A camera module includes a housing, a movable body configured to move in a direction of an optical axis of the housing; a reinforcing member formed integrally on one surface of the movable body, and configured to increase a rigidity of the movable body; and a first buffer member formed in the reinforcing member, and configured to reduce an impactive force between the housing and the movable body.

Abstract: A robot for automatically preventing epidemics includes: a moving body which is movable along a passage of an interior space of a transportation element; an injection unit which is mounted to the moving body and injects a chemical solution for disinfection toward the seat disposed in the interior space; and an ultraviolet ray irradiation unit which is mounted to a lower end of the moving body and irradiates ultraviolet rays toward a floor of the passage, in which the robot for automatically preventing epidemics automatically performs epidemic prevention work in the interior space.

Abstract: Disclosed is an antenna bandwidth expander capable of improving transmission/reception performance of a wireless communication device by expanding a bandwidth of an antenna in which broadband frequency characteristics including various communication bands are necessary like an LTE smartphone. The antenna bandwidth expander may improve the transmission and reception performance of a terminal by easily and conveniently expanding a bandwidth of an antenna in first and second resonant frequency bands.

Abstract: Disclosed is an antenna bandwidth expander capable of improving transmission/reception performance of a wireless communication device by expanding a bandwidth of an antenna in which broadband frequency characteristics including various communication bands are necessary like an LTE smartphone. The antenna bandwidth expander may improve the transmission and reception performance of a terminal by easily and conveniently expanding a bandwidth of an antenna in first and second resonant frequency bands.

Abstract: A planar inverted F antenna (PIFA) includes a feed pin supplying a current, a feed line having one end electrically coupled to one end of the feed pin and having a predetermined resonance length, a coupling pin coupled to the other end of the feed line, and a radiating patch formed on a plane spaced-apart from the feed line by a predetermined distance to induce the current supplied through the other end of the coupling pin, and a slot having one end starting at a portion of an edge and the other end disposed in an inside portion of the radiating patch, and a shorting pin having one end coupled to the radiating patch and the other end coupled to a ground. The PIFA becomes smaller by using an electrical resonance length of the feed line, a shape of the feed line, and the open stub and the matching pad, improves the flexibility of the antenna design, and obtains a wider frequency band.

Abstract: A planar inverted F antenna (PIFA) includes a feed pin supplying a current, a feed line having one end electrically coupled to one end of the feed pin and having a predetermined resonance length, a coupling pin coupled to the other end of the feed line, and a radiating patch formed on a plane spaced-apart from the feed line by a predetermined distance to induce the current supplied through the other end of the coupling pin, and a slot having one end starting at a portion of an edge and the other end disposed in an inside portion of the radiating patch, and a shorting pin having one end coupled to the radiating patch and the other end coupled to a ground. The PIFA becomes smaller by using an electrical resonance length of the feed line, a shape of the feed line, and the open stub and the matching pad, improves the flexibility of the antenna design, and obtains a wider frequency band.

Abstract: Disclosed herein is a surface mounted chip antenna. The surface mounted chip antenna has a dielectric block, a ground electrode, a feeding electrode, and a radiation electrode. The dielectric block is constructed in the form of a rectangular solid having opposite first and second major surfaces. The ground electrode is formed on the first major surface. The feeding electrode is formed on at least one side surface of the dielectric block. The radiation electrode is comprised of a radiation portion formed on the second major surface, an open portion formed to be spaced apart from the feeding electrode, and a short portion formed for coupling the radiation portion with the ground electrode.

Abstract: Disclosed herein is a surface mounted chip antenna. The surface mounted chip antenna has a dielectric block, a ground electrode, a radiation electrode and a feeding pattern. The dielectric block is constructed in the form of a rectangular solid having first and second opposite major surfaces. The ground electrode is formed on the first major surface of the dielectric block. The radiation electrode resonates at a predetermined resonance frequency and has a radiation portion and a short portion. The feeding pattern is formed on at least one side surface of the dielectric block and is spaced apart from the radiation electrode and the ground electrode.

Abstract: Disclosed herein is a surface mounted chip antenna. The surface mounted chip antenna has a dielectric block, a ground electrode, a feeding electrode, and a radiation electrode. The dielectric block is constructed in the form of a rectangular solid having opposite first and second major surfaces. The ground electrode is formed on the first major surface. The feeding electrode is formed on at least one side surface of the dielectric block. The radiation electrode is comprised of a radiation portion formed on the second major surface, an open portion formed to be spaced apart from the feeding electrode, and a short portion formed for coupling the radiation portion with the ground electrode.

Abstract: Disclosed herein is a surface mounted chip antenna. The surface mounted chip antenna has a dielectric block, a ground electrode, a radiation electrode and a feeding pattern. The dielectric block is constructed in the form of a rectangular solid having first and second opposite major surfaces. The ground electrode is formed on the first major surface of the dielectric block. The radiation electrode resonates at a predetermined resonance frequency and has a radiation portion and a short portion. The feeding pattern is formed on at least one side surface of the dielectric block and is spaced apart from the radiation electrode and the ground electrode.