公开(公告)号：KR20100127391A

公开(公告)日：2010-12-06

申请号：KR20090045817

申请日：2009-05-26

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： KIM DONG SU ,  LEE WOO SUNG ,  KIM SANG CHUL ,  KIM A MI

IPC: H01Q17/00 ,  G06K19/02 ,  G06K19/067 ,  H05K9/00

CPC classification number: H01Q17/004 ,  G06K19/0723 ,  H01Q1/2225 ,  H01Q1/2283 ,  H01Q1/38

Abstract: PURPOSE: An electromagnetic wave absorber, an antenna for an RFID tag, the RFID tag, and a manufacturing method thereof are provided to secure the stable operation of the RFID tag regardless of attached materials by absorbing the electromagnetic waves reflected from the attached materials. CONSTITUTION: An antenna for an RFID tag includes an electromagnetic wave absorber(100), a dielectric layer(120a), and a metal layer(130). The dielectric layer is formed on the electromagnetic wave absorber. The metal layer is formed on the dielectric layer. The electromagnetic wave absorber is made of a mixture of powder with high permeability, urethane binder, and silicon disperser. The powder with high permeability is sendust powder or permalloy powder.

Abstract translation: 目的：提供一种电磁波吸收体，RFID标签用天线，RFID标签及其制造方法，通过吸收从附着材料反射的电磁波，来保证RFID标签的稳定运行，无论附加材料如何。 构成：RFID标签的天线包括电磁波吸收体（100），电介质层（120a）和金属层（130）。 电介质层形成在电磁波吸收体上。 金属层形成在电介质层上。 电磁波吸收体由高透过性粉末，聚氨酯粘合剂和硅分散器的混合物构成。 高渗透性粉末是粉末粉末或坡莫合金粉末。

公开(公告)号：KR101136969B1

公开(公告)日：2012-04-19

申请号：KR20100139495

申请日：2010-12-30

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： CHO SARM GOO ,  LEE WOO SUNG ,  KIM DONG SU

IPC: H03M3/02

CPC classification number: H03M3/39 ,  H03M3/32 ,  H03M2201/196 ,  H03M2201/61

Abstract: PURPOSE: A bandpass modulator is provided to increase stability, the size of an output signal, and coding efficiency by reducing the signal accumulation of a resonator. CONSTITUTION: A bandpass delta-sigma modulator(200) comprises first to fourth calculation units(202,204,206,208), first and second resonant units(212,214), first and second quantization units(222,224), a shifter(232), and a delay unit(242). The first and the second resonant units are parallely connected. The first calculation unit, the first resonant unit, and a first quantization unit are included in a first stage. The second calculation unit, the second resonant unit, and the second quantization unit are included in a second stage. The first calculation unit is connected to the input of the first resonant unit. The first resonant unit passes through a signal having a specific frequency band from an output signal of the first calculation unit.

Abstract translation: 目的：提供一种带通调制器，通过减少谐振器的信号累积来提高稳定性，输出信号的大小和编码效率。 构成：带通Δ-Σ调制器（200）包括第一至第四计算单元（202,204,206,208），第一和第二谐振单元（212,214），第一和第二量化单元（222,224），移位器（232）和延迟单元 242）。 第一和第二谐振单元并联连接。 第一计算单元，第一谐振单元和第一量化单元包括在第一级中。 第二计算单元，第二谐振单元和第二量化单元包括在第二阶段中。 第一计算单元连接到第一谐振单元的输入端。 第一谐振单元从第一计算单元的输出信号通过具有特定频带的信号。