Abstract: Disclosed is a gate system arranged on two gate frames and detects a tag passing between the two gate frames, the gate system including at least two gate frames that are vertically arranged facing with each other; at least two antenna units that are arranged on the at least two gate frames, respectively; and a reader that is arranged on each of the at least two gate frames and enables the at least two antenna units to emit electromagnetic wave to an article passing between the at least two gate frames using a predetermined frequency signal, and obtains information stored in a tag using a signal that the at least two antenna units receives from the at least two antenna units.

Abstract: Disclosed herein is an RFID antenna, including, a dipole antenna pattern, and a matching pattern containing a pair of first pattern parts, each part being discretely and protrusively disposed at one side of the dipole antenna pattern and a second pattern part connecting each distal end of the pair of first pattern parts, wherein a ratio of an inner length of the pair of first pattern parts vs an inner length of the second pattern part is substantially larger than 1:8.

Abstract: An RFID tag is disclosed, wherein the RFID tag includes a radiation pattern printing on an upper surface of a first dielectric substrate, a cross (+) type slot formed towards an upper part, a lower part, a left-side and a right-side on the basis of a center of the radiation pattern to divide a left-side radiation pattern and a right-side radiation pattern, a plurality of first connection patterns formed inside the upper part of the cross (+) type slot, connecting the left-side radiation pattern with the right-side radiation pattern, a tag chip settled inside the lower part of the cross (+) type slot, a feeding loop pattern electrically connecting the tag chip and the left-side radiation pattern, and the right-side radiation pattern, and a plurality of second connection patterns connecting the left-side radiation pattern and the right-side radiation pattern at an end part of the feeding loop pattern.

Abstract: Disclosed is an RFID-based reader configured to allow a UHF band RFID reader unit to recognize an RFID tag in a short distance, and to minimize an erroneous recognition, the reader including a gate frame discretely installed at both sides of an entrance and exit, a parabolic surface type reflective plate perpendicularly installed inside of the gate frame, an array antenna arranged on the reflective plate for receiving a tag information transmitted from an RFID tag, and an RFID reader unit for controlling an operation of the array antenna and converting the tag information received from the array antenna to a tag data.

Abstract: The present disclosure relates to a mobile rack for a library and an RFID (Radio Frequency Identification) system for a library including the same, wherein the mobile rack includes a plurality of racks configured to keep books each attached with an RFID tag and mounted with an RFID reader for recognizing tag information stored in the RFID tag, a moving unit configured to move at least one of the plurality of racks, a server configured to manage the books that are inputted, outputted and stacked, and a controller configured to control the moving means in response to a user command through the server or the tag information and to adjust a discrete distance between racks.

Abstract: The present disclosure relates to an RFID (Radio frequency identification) system using circular polarized antennas, wherein a reader emits electromagnetic wave through reader antennas to recognize a tag and to read out customer information if a customer proximity is detected, where the reader antennas are installed at a kiosk body and at a rear proximity position of a floor surface on which a customer using the kiosk stands, and the reader antennas installed at the rear proximity position of the floor surface emits circular polarizing wave toward the kiosk, whereby the tag can be accurately recognized regardless of position of the tag of the customer.

Abstract: The invention provides a micro strip antenna used for both a near-field region and a remote-field region. A micro strip antenna comprises: a first dielectric substrate; a main patch, having a triangle shape under the first dielectric substrate, configured to feed a radiation current; a second dielectric substrate over the first dielectric substrate; and a sub patch, formed under the second dielectric substrate, configured to desert a current from the main patch to provide a vertical magnetic field.

Abstract: The present disclosure relates to an RFID (Radio frequency identification) tag for metallic materials, including a dielectric substrate, a tag chip arrayed on the dielectric substrate for storing an object data, a feeding loop connected across the tag chip for forming an inner space, and a metallic radiator connected across the feeding loop for receiving an electromagnetic signal from outside.

Abstract: Disclosed is a gate system arranged on two gate frames and detects a tag passing between the two gate frames, the gate system including at least two gate frames that are vertically arranged facing with each other; at least two antenna units that are arranged on the at least two gate frames, respectively; and a reader that is arranged on each of the at least two gate frames and enables the at least two antenna units to emit electromagnetic wave to an article passing between the at least two gate frames using a predetermined frequency signal, and obtains information stored in a tag using a signal that the at least two antenna units receives from the at least two antenna units.

Abstract: The invention provides a micro strip antenna used for both a near-field region and a remote-field region. A micro strip antenna comprises: a first dielectric substrate; a main patch, having a triangle shape under the first dielectric substrate, configured to feed a radiation current; a second dielectric substrate over the first dielectric substrate; and a sub patch, formed under the second dielectric substrate, configured to desert a current from the main patch to provide a vertical magnetic field.

Abstract: Disclosed herein is an RFID antenna, including, a dipole antenna pattern, and a matching pattern containing a pair of first pattern parts, each part being discretely and protrusively disposed at one side of the dipole antenna pattern and a second pattern part connecting each distal end of the pair of first pattern parts, wherein a ratio of an inner length of the pair of first pattern parts vs an inner length of the second pattern part is substantially larger than 1:8.

Abstract: An RFID tag is disclosed, wherein the RFID tag includes a radiation pattern printing on an upper surface of a first dielectric substrate, a cross (+) type slot formed towards an upper part, a lower part, a left-side and a right-side on the basis of a center of the radiation pattern to divide a left-side radiation pattern and a right-side radiation pattern, a plurality of first connection patterns formed inside the upper part of the cross (+) type slot, connecting the left-side radiation pattern with the right-side radiation pattern, a tag chip settled inside the lower part of the cross (+) type slot, a feeding loop pattern electrically connecting the tag chip and the left-side radiation pattern, and the right-side radiation pattern, and a plurality of second connection patterns connecting the left-side radiation pattern and the right-side radiation pattern at an end part of the feeding loop pattern.

Abstract: Disclosed is an RFID-based reader configured to allow a UHF band RFID reader unit to recognize an RFID tag in a short distance, and to minimize an erroneous recognition, the reader including a gate frame discretely installed at both sides of an entrance and exit, a parabolic surface type reflective plate perpendicularly installed inside of the gate frame, an array antenna arranged on the reflective plate for receiving a tag information transmitted from an RFID tag, and an RFID reader unit for controlling an operation of the array antenna and converting the tag information received from the array antenna to a tag data.

Abstract: The present disclosure relates to a mobile rack for a library and an RFID (Radio Frequency Identification) system for a library including the same, wherein the mobile rack includes a plurality of racks configured to keep books each attached with an RFID tag and mounted with an RFID reader for recognizing tag information stored in the RFID tag, a moving unit configured to move at least one of the plurality of racks, a server configured to manage the books that are inputted, outputted and stacked, and a controller configured to control the moving means in response to a user command through the server or the tag information and to adjust a discrete distance between racks.

Abstract: The present disclosure relates to an RFID (Radio frequency identification) antenna system and control method of the same, wherein the system includes a first antenna group including a plurality of first antennas, a second antenna group including a plurality of second antennas, a reader transmitting a transmission-only command to the first antenna group so that the first antenna group functions as a transmission-only antenna transmitting information request data to an RFID tag, and receiving object data included in the tag transmitted in opposition to the information request data through the second antenna group, and a data processing server receiving a plurality of object data transmitted to the reader via the plurality of second antenna for use in data processing.

Abstract: The present disclosure relates to an RFID (Radio frequency identification) system using circular polarized antennas, wherein a reader emits electromagnetic wave through reader antennas to recognize a tag and to read out customer information if a customer proximity is detected, where the reader antennas are installed at a kiosk body and at a rear proximity position of a floor surface on which a customer using the kiosk stands, and the reader antennas installed at the rear proximity position of the floor surface emits circular polarizing wave toward the kiosk, whereby the tag can be accurately recognized regardless of position of the tag of the customer.

Abstract: The present disclosure relates to an RFID (Radio frequency identification) tag for metallic materials, including a dielectric substrate, a tag chip arrayed on the dielectric substrate for storing an object data, a feeding loop connected across the tag chip for forming an inner space, and a metallic radiator connected across the feeding loop for receiving an electromagnetic signal from outside.

Abstract: Disclosed are a radio frequency identification (RFID) reader antenna using an RFID technique and an apparatus for managing items using the same, the antenna comprising: a feeding portion having one end connected to an RFID reader and another end connected to a ground; and a conductive radiating electrode disposed above the feeding portion by being spaced apart from the feeding portion by a certain distance and configured to send or receive a signal of a certain band to/from an RFID tag attached to each item by an electromagnetic coupling with the feeding portion.