公开(公告)号：KR100761993B1

公开(公告)日：2007-10-02

申请号：KR1020060046288

申请日：2006-05-23

Applicant: 국방과학연구소

Inventor： 박영미 ,  장원 ,  양종원 ,  최준호

IPC: G01S13/36

Abstract: A direction finding array antenna simulator is provided to extend an application range by simulating a direction finding array antenna through a simple structure change. A direction finding array antenna simulator includes a first divider(111), a second divider(121), n variable phase shifters(122-1,122-n), n mixers(112-1,112-n), n low pass filters(113-1,113-n) and a phase difference detector(140). The first divider(111) divides an RF(Radio Frequency) signal into n signals. The second divider(121) divides a local oscillation signal into n signals. The n variable phase shifters(122-1,122-n) vary phases by being operated in a narrow band for the n divided oscillation signals. The n mixers(112-1,112-n) perform the frequency transform of the n divided RF signals based on the n phase varied oscillation signals. The n low pass filters(113-1,113-n) cut off the specific band for the n frequency-transformed signals. The phase difference detector(140) detects the phase difference of output signals of the low pass filters(113-1,113-n). The n variable phase shifters(122-1,122-n) are operated in a wide band by maintaining the phase difference of the local oscillation signal to the phase difference of an intermediate frequency, and simulate a phase array direction finding antenna of a linear shape, a circular shape or a planar shape.

Abstract translation: 提供方向发现阵列天线模拟器，通过简单的结构变化模拟方向发现阵列天线来扩展应用范围。 方向发现阵列天线模拟器包括第一分频器（111），第二分频器（121），n个可变移相器（122-1,122-n），n个混频器（112-1,112-n），n个低通滤波器 1,113-n）和相位差检测器（140）。 第一分频器（111）将RF（射频）信号分成n个信号。 第二分频器（121）将本地振荡信号分成n个信号。 n个可变移相器（122-1,122-n）通过在n个分频振荡信号的窄带中操作来改变相位。 n混频器（112-1,112-n）基于n相变化的振荡信号执行n个分频RF信号的频率变换。 n个低通滤波器（113-1,113-n）切断n个频率变换信号的特定频带。 相位差检测器（140）检测低通滤波器（113-1,113-n）的输出信号的相位差。 n个可变移相器（122-1,122-n）通过将本地振荡信号的相位差保持为中间频率的相位差而在宽带中工作，并且模拟线性形状的相位阵列测向天线， 圆形或平面形状。

公开(公告)号：KR101059747B1

公开(公告)日：2011-08-26

申请号：KR1020080114238

申请日：2008-11-17

Applicant: 국방과학연구소

Inventor： 최준호 ,  나선필 ,  박철순 ,  장원

IPC: H05K1/02 ,  H05K9/00

Abstract: 본 발명은 전자기 밴드갭 구조물에 관한 것으로, 상기 전자기 밴드갭 구조물은 유전체 기판과, 상기 유전체 기판의 일면에 형성되고, 도전성 재질로 구현되는 이종(異種) 주기 패턴이 구비되는 제1 도전층, 및 상기 제1 도전층의 접지면이 되도록 상기 유전체 기판의 타면에 형성되는 제2 도전층를 포함하고, 상기 이종 주기 패턴은 단위 패턴이 주기적으로 배치됨에 의하여 형성되고, 상기 단위 패턴은 적어도 일부가 주기적으로 반복되는 무늬로 형성되고, 상기 무늬는 도전체가 슬롯(Slot)을 형성하도록 이격되게 배치됨에 따라 구현된다. 이에 의하여 보다 슬림하면서도 광대역 영역에 높은 전자파 노이즈 저감 특성을 가지는 반도체 패키지 또는 인쇄회로기판이 구현될 수 있다.
전자기 밴드갭, 전자파 노이즈

Abstract translation: 本发明涉及一种电磁带隙结构，其中，所述电磁带隙结构是介质基片，形成在介质基片，即2种设有与导电材料实现的周期性图案（异种）的第一导电层的一个表面上，和 使得所述第一导电层的接地面包括形成在所述介质基片的另一表面上的第二导电cheungreul，两种周期性图案的是由部署周期性地形成的单元图案，单元图案是在至少一部分周期性地 以重复的图案形成，并且图案以这样的方式实现，即导体被设置为隔开以形成槽。 结果，可以实现在宽频带区域中具有细长且高电磁噪声降低特性的半导体封装或印刷电路板。

公开(公告)号：KR100752951B1

公开(公告)日：2007-08-30

申请号：KR1020060032973

申请日：2006-04-11

Applicant: 국방과학연구소

Inventor： 최준호 ,  장원 ,  나선필 ,  박철순

IPC: H01Q9/16

Abstract: A dual-band active dipole antenna is provided to enhance a signal reception property of the dipole antenna by varying a length of a radiating element using a high frequency blocking element. A dual-band active dipole antenna includes a dipole antenna unit(20) and an active circuit unit(22). The dipole antenna unit includes a pair of basic radiating elements(21A,21B), a pair of additional radiating elements(23A,23B), and high frequency blocking elements(24A,24B). The additional radiating elements are arranged to be apart from the respective basic radiating elements. The high frequency blocking elements couple the basic radiating elements with the additional radiating elements, respectively. The active circuit unit amplifies an RF(Radio Frequency) signal from the dipole antenna unit and matches output impedances of the antenna unit and a power supply with each other.

Abstract translation: 提供双频带有源偶极天线以通过使用高频阻挡元件改变辐射元件的长度来增强偶极天线的信号接收特性。 双频有源偶极天线包括偶极天线单元（20）和有源电路单元（22）。 偶极天线单元包括一对基本辐射元件（21A，21B），一对附加辐射元件（23A，23B）和高频阻断元件（24A，24B）。 附加辐射元件布置成与相应的基本辐射元件分开。 高频阻断元件分别将基本辐射元件与附加辐射元件耦合。 有源电路单元放大来自偶极天线单元的RF（射频）信号并且将天线单元和电源的输出阻抗彼此匹配。

公开(公告)号：KR1020100055252A

公开(公告)日：2010-05-26

申请号：KR1020080114238

申请日：2008-11-17

Applicant: 국방과학연구소

Inventor： 최준호 ,  나선필 ,  박철순 ,  장원

IPC: H05K1/02 ,  H05K9/00

CPC classification number: H05K1/0236 ,  H05K1/0216 ,  H05K5/0286 ,  H05K2201/09063 ,  H05K2201/093

Abstract: PURPOSE: The electromagnetic band gap structure of the different kind cycle form uses the different kind period pattern. The electromagnetic noise is alleviated to the structure of slimming and it prevents. CONSTITUTION: The first conductive layer(110) is formed in the single-side of the dielectric substrate. In the first conductive layer, the different kind period pattern(110a) embodying as the conductive material is included. In the first conductive layer, the unit pattern(110b) is periodically arranged in order to reduce the electromagnetic noise. The second conductive layer is formed in the other side of the dielectric substrate.

Abstract translation: 目的：不同种类周期形式的电磁带隙结构采用不同种类的周期模式。 电磁噪声减轻了减肥的结构，防止了。 构成：第一导电层（110）形成在电介质基板的单面中。 在第一导电层中，包括体现为导电材料的不同种类周期图案（110a）。 在第一导电层中，周期性地布置单元图案（110b）以减小电磁噪声。 第二导电层形成在电介质基板的另一侧。

公开(公告)号：KR1020090113690A

公开(公告)日：2009-11-02

申请号：KR1020080039549

申请日：2008-04-28

Applicant: 국방과학연구소

Inventor： 신진우 ,  이우상 ,  소준호 ,  장원

IPC: H01Q13/02 ,  H01Q13/00

CPC classification number: H01Q13/0225 ,  H01Q13/0275 ,  H01Q21/29

Abstract: PURPOSE: An attenuation antenna for measuring a narrow band high output pulse is provided to change an amount of attenuation of the high output pulse by controlling the length of a rectangular waveguide for measuring a high output pulse. CONSTITUTION: An attenuation antenna includes a horn antenna(110), a first waveguide(120), and a second waveguide(140). A first ridge(111) is formed in an inner surface of the horn antenna. The first ridge is formed with a taper shape. The height of the first ridge is gradually increased from an opening start point of the horn antenna. The first waveguide is connected to the horn antenna. A second ridge(121) is formed in an inner surface of the first waveguide and is connected to the second ridge. The second waveguide is connected to the first waveguide. The second waveguide has the variable length to control an amount of the attenuation. The first and second waveguides are the rectangular waveguides.

Abstract translation: 目的：提供用于测量窄带高输出脉冲的衰减天线，以通过控制用于测量高输出脉冲的矩形波导的长度来改变高输出脉冲的衰减量。 构成：衰减天线包括喇叭天线（110），第一波导（120）和第二波导（140）。 第一脊（111）形成在喇叭天线的内表面。 第一脊形成为锥形。 第一脊的高度从喇叭天线的开始起点逐渐增加。 第一个波导连接到喇叭天线。 第二脊（121）形成在第一波导的内表面中并连接到第二脊。 第二波导连接到第一波导。 第二波导具有可变长度以控制衰减量。 第一和第二波导是矩形波导。