Abstract: Provided are a band stop filter of a CRLH structure and a manufacturing method thereof. A band stop filter of a CRLH structure according to an exemplary embodiment of the present invention includes a microstrip transmission line formed on a substrate; a right handed material (RHM) region including a first stub and a first capacitor connected to the microstrip transmission line in parallel and stopping a signal of a first frequency band passing through the microstrip transmission line; and a left handed material (LHM) region further provided between the first stub and the first capacitor to block a signal of a second frequency band passing through the microstrip transmission line.

Abstract: Provided are a band stop filter of a CRLH structure and a manufacturing method thereof. A band stop filter of a CRLH structure according to an exemplary embodiment of the present invention includes a microstrip transmission line formed on a substrate; a right handed material (RHM) region including a first stub and a first capacitor connected to the microstrip transmission line in parallel and stopping a signal of a first frequency band passing through the microstrip transmission line; and a left handed material (LHM) region further provided between the first stub and the first capacitor to block a signal of a second frequency band passing through the microstrip transmission line.

Abstract: A patch antenna in a wireless communication system includes a patch antenna unit positioned at a predetermined point on a substrate; a first cover of a high-gain metamaterial of a different structure positioned over the patch antenna unit at a first distance from the substrate on which the patch antenna unit is positioned; and a second cover of a metamaterial of an identical structure positioned over the first cover at a second distance from the first cover. The first cover has a quadrilateral grid formed only on an outer periphery of a dielectric surface of the first cover.