公开(公告)号：AU8024301A

公开(公告)日：2002-03-22

申请号：AU8024301

申请日：2001-08-29

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE TAE YUNE ,  YUN JE HOON ,  CHOI JAE ICK ,  KWON JONG HWA ,  PARK HYUN HO

IPC: H01Q1/24 ,  H01Q17/00 ,  H04B1/38

Abstract: The present invention relates to a structure of an antenna and its shielding structure for a mobile phone which may significantly reduce the hazardous electromagnetic wave transmitted to the user's body. The present invention arranges a monopole antenna inside of the mobile phone housing, and installs an electromagnetic wave absorber between the antenna and the circuit board. The electromagnetic wave absorber can absorb the electromagnetic wave reflected form conductive plate constituting the circuit board. Thus, the adverse effect of the reflected electromagnetic wave to the performance of antenna is prevented and the amount of the electromagnetic wave to which the users is exposed can be significantly reduced as well.

公开(公告)号：KR20100118889A

公开(公告)日：2010-11-08

申请号：KR20090037821

申请日：2009-04-29

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： JU JEONG HO ,  KIM DONG HO ,  CHOI JAE ICK ,  LEE WANG JOO

IPC: H01Q21/06 ,  H01Q1/38 ,  H01Q7/00 ,  H01Q21/00

CPC classification number: H01Q21/065 ,  H01Q15/0086

Abstract: PURPOSE: An antenna is provided to reduce the loss of power which is supplied to an antenna by reducing a rear radiation value by -30dB. CONSTITUTION: An antenna comprises an upper plate cover(1), a resonant part(2), a dielectric(3), a power feed antenna(4), and a ground plane(5). A metal wall(6) is formed in both sides of the antenna. The power feed antenna comprises a patch antenna, a dipole antenna, a slot antenna, or a waveguide antenna. The power feed antenna can be located in the center or the upper part of the resonant part.

Abstract translation: 目的：提供天线，通过将后辐射值减少-30dB来减少提供给天线的功率损失。 构成：天线包括上板盖（1），谐振部分（2），电介质（3），馈电天线（4）和接地平面（5）。 金属壁（6）形成在天线的两侧。 馈电天线包括贴片天线，偶极天线，缝隙天线或波导天线。 馈电天线可以位于谐振部分的中心或上部。

公开(公告)号：KR20070095060A

公开(公告)日：2007-09-28

申请号：KR20060025257

申请日：2006-03-20

Applicant: KOREA ELECTRONICS TELECOMM ,  EPSILON CORP

Inventor： KWON JONG HWA ,  KIM KWANG WOOK ,  CHOI JAE ICK ,  CHOI HYUNG DO

IPC: B22F1/02

Abstract: A noble method for coating the surface of a mica powder with silver to improve corrosion resistance and electromagnetic shielding efficiency of the mica powder is provided. A method for coating a mica powder with silver comprises the steps of: degreasing and etching a mica powder; sensitizing the degreased and etched mica powder; and adding the sensitized mica powder into a solution comprising a silver compound, a complex and a stabilizer, and injecting a reductant into the mixed solution within 5 minutes, and coating the mica powder with the solution. The mica powder can be replaced with a plastic powder or a ceramic powder. The complex is ammonia water. The stabilizer is at least one selected from the group consisting of ammonium bicarbonate and ammonium carbonate. The reductant is at least one selected from the group consisting of hydrazine monohydrate, formalin, glucose, ascorbic acid, sugar-alcohol, and borohydride.

Abstract translation: 提供了用银涂覆云母粉表面的高效方法，以提高云母粉的耐腐蚀性和电磁屏蔽效率。 用银包覆云母粉的方法包括以下步骤：对云母粉进行脱脂和蚀刻; 使脱脂和蚀刻的云母粉敏感; 并将致敏云母粉末加入到包含银化合物，络合物和稳定剂的溶液中，并在5分钟内将还原剂注入混合溶液中，并用溶液涂覆云母粉末。 云母粉末可以用塑料粉末或陶瓷粉末代替。 复合体是氨水。 稳定剂是选自碳酸氢铵和碳酸铵中的至少一种。 还原剂是选自一水合肼，福尔马林，葡萄糖，抗坏血酸，糖醇和硼氢化物中的至少一种。

公开(公告)号：KR20120071871A

公开(公告)日：2012-07-03

申请号：KR20100133591

申请日：2010-12-23

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV HONGIK IND ACAD COOP FDN

Inventor： HONG JU YEON ,  CHOI JAE ICK ,  KIM DONG JIN ,  LEE JEONG HAE

IPC: H04B3/52 ,  H04B14/00

CPC classification number: H01Q21/005 ,  H01Q13/22 ,  H01Q21/064

Abstract: PURPOSE: A signal transmission apparatus in a communication system and method thereof are provided to embody a waveguide by using two slots and two metal conductors in the communication system. CONSTITUTION: A waveguide transmits a wireless frequency signal of a broadband embodied by a broadband meta material. The waveguide includes a first slot(111), a second slot(112), and one or more metal conductors(121,122). The first slot is located at an x shaft direction of the lower waveguide. The second slot is located the x shaft direction of the upper waveguide. One or more metal conductors are installed between the first slot and the second slot. The metal conductors have a twisted shape structure.

Abstract translation: 目的：提供通信系统中的信号传输装置及其方法，通过在通信系统中使用两个槽和两个金属导体来实现波导。 构成：波导传输宽带元素所体现的宽带的无线频率信号。 波导包括第一槽（111），第二槽（112）和一个或多个金属导体（121,122）。 第一槽位于下波导的x轴方向。 第二槽位于上部波导的x轴方向。 一个或多个金属导体安装在第一槽和第二槽之间。 金属导体具有扭曲的形状结构。

公开(公告)号：KR20100083759A

公开(公告)日：2010-07-22

申请号：KR20100068010

申请日：2010-07-14

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM DONG HO ,  JU JEONG HO ,  CHOI JAE ICK ,  LEE WANG JOO

IPC: H01Q1/38 ,  H01Q1/24 ,  H01Q7/00

CPC classification number: H01Q1/38 ,  H01Q7/00 ,  H01Q15/0086 ,  H01Q15/08 ,  H01Q21/065

Abstract: PURPOSE: The flat type meta material construction and the antenna system including the structure position the flat type meta material construction on the top of antenna including the flat type meta material having the dielectric constant of the negative principle in nature, and the magnetic permeability and refractive index. The efficiency of antenna, and the gain and directivity are improved. CONSTITUTION: The flat type dielectric(130) of multi-layered has the single-layer structure of the identical dielectric constant. The first conductor part locates in the upper side of dielectric. The first conductor part comprises the first conductor(110). The second electric conductor part locates in the lower-part of dielectric. The second electric conductor part comprises the second conductor(120). The first and the second conductor have the loop shape.

Abstract translation: 目的：平面型超材料结构和包括结构在天线顶部的平面型超材料结构位置的天线系统，包括具有负性原理的介电常数的平面型超材料，以及磁导率和折射率 指数。 改善了天线的效率，增益和方向性。 构成：多层平板型电介质（130）具有相同介电常数的单层结构。 第一导体部分位于电介质的上侧。 第一导体部分包括第一导体（110）。 第二导体部分位于电介质的下部。 第二导体部分包括第二导体（120）。 第一和第二导体具有环形。