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    • 5. 发明授权
    • Impedance matching system, network analyzer having the same, and impedance matching method thereof
    • 阻抗匹配系统,具有相同的网络分析仪及其阻抗匹配方法
    • US07831226B2
    • 2010-11-09
    • US11644979
    • 2006-12-26
    • Do-Hoon KwonYoung-eil Kim
    • Do-Hoon KwonYoung-eil Kim
    • H04B1/18H01Q11/12H01P5/08
    • H04B1/0458
    • An impedance matching system, a network analyzer having the same, and an impedance matching method thereof are disclosed. The system includes a signal extractor to extract an output signal and an input signal having at least a portion of an electric current outputted through a load and at least a portion of an electric current inputted through the load, respectively, a processor to process the output signal and the input signal extracted from the signal extractor, a comparator to compare a phase and an amplitude of the output signal with a phase and an amplitude of the input signal, respectively, a coefficient calculator to calculate a reflection coefficient using the comparative result provided from the comparator, and a circuit controller to generate a signal for controlling a matching circuit, which matches the phase and the amplitude of the output signal with the phase and the amplitude of the input signal, respectively, so as to ensure the reflection coefficient to have a predetermined value.
    • 公开了一种阻抗匹配系统,具有该阻抗匹配系统的网络分析仪及其阻抗匹配方法。 该系统包括提取输出信号的信号提取器和具有通过负载输出的电流的至少一部分和通过负载输入的至少一部分电流的输入信号,处理器处理输出 信号和从信号提取器提取的输入信号,比较器,分别将输出信号的相位和幅度与输入信号的相位和幅度进行比较,系数计算器使用提供的比较结果来计算反射系数 以及电路控制器,分别产生用于控制与输入信号的相位和幅度相匹配的输出信号的相位和幅度的匹配电路的信号,以便确保反射系数 具有预定值。
    • 6. 发明授权
    • Apparatus for wideband transmission conversion from coplanar waveguide to parallel transmission line
    • 用于从共面波导到并行传输线的宽带传输转换的装置
    • US07557680B2
    • 2009-07-07
    • US11340694
    • 2006-01-27
    • Do-hoon KwonYong-jin KimYoung-eil KimYoung-min Moon
    • Do-hoon KwonYong-jin KimYoung-eil KimYoung-min Moon
    • H01P5/00
    • H01P5/10
    • A transmission line conversion apparatus connecting a parallel transmission line to a coplanar waveguide (CPW) is provided. To this end, the CPW including a transmission line composed of a signal line and a ground line which is formed on one surface of a dielectric substrate, and a parallel transmission line connected to the CPW, at a predetermined angle with respect to a substrate constituting the CPW, and composed of a signal line and a ground line, are proposed. In addition, the signal line of the CPW and the signal line of the parallel transmission line are connected to each other, and the ground line of the CPW and the ground line of the parallel transmission line are connected to each other. As such, by connecting the CPW to the parallel transmission line, a return loss can be minimized.
    • 提供将并行传输线连接到共面波导(CPW)的传输线转换装置。 为此,包括形成在电介质基板的一个表面上的由信号线和接地线构成的传输线以及与CPW相连接的以预定角度相对于构成的基板的平行传输线的CPW CPW,由信号线和接地线组成。 此外,CPW的信号线和并行传输线的信号线彼此连接,并且CPW的接地线和并行传输线的接地线彼此连接。 因此,通过将CPW连接到并行传输线,可以使回波损耗最小化。
    • 8. 发明授权
    • Substrate type dipole antenna having stable radiation pattern
    • 具有稳定辐射图的基板型偶极天线
    • US07471256B2
    • 2008-12-30
    • US11322351
    • 2006-01-03
    • Do-hoon KwonYong-jin KimSeong-soo Lee
    • Do-hoon KwonYong-jin KimSeong-soo Lee
    • H01Q9/28
    • H01Q9/28H01Q9/285H01Q9/40
    • A Ultra WideBand (UWB) substrate type dipole antenna is provided which has a stable radiation pattern. The UWB substrate type dipole antenna includes a dielectric substrate, a first radiator formed on a side of the dielectric substrate, a signal line transmitting an energy from a coaxial cable to the first radiator, and a plurality of second radiators formed at a predetermined distance from the first radiator and the signal line, and respectively having therein a plurality of slits of a predetermined configuration. Because there is no leakage of electric current to an outer part of an external conductor of the coaxial cable, even when the connection of the connector and the coaxial cable to the antenna, distortion of the radiation pattern of the antenna is prevented. As a result, the same radiation pattern and the direction of maximum radiation may be obtained before and after connection with the connector and the coaxial cable.
    • 提供了具有稳定的辐射图案的超宽带(UWB)基板型偶极天线。 UWB基板型偶极天线包括电介质基板,形成在电介质基板一侧的第一辐射体,将同轴电缆的能量传输到第一散热器的信号线,以及形成在预定距离处的多个第二散热器 第一辐射器和信号线,并且分别具有预定构造的多个狭缝。 由于没有电流泄漏到同轴电缆的外部导体的外部部分,所以即使连接器和同轴电缆与天线的连接,也能够防止天线的辐射图形的失真。 结果,可以在与连接器和同轴电缆连接之前和之后获得相同的辐射图案和最大辐射的方向。
    • 10. 发明申请
    • Apparatus for converting transmission structure
    • 用于转换传输结构的设备
    • US20070139133A1
    • 2007-06-21
    • US11603052
    • 2006-11-22
    • Do-hoon KwonYoung-eil Kim
    • Do-hoon KwonYoung-eil Kim
    • H01P5/02
    • H01P5/10
    • An apparatus for converting a transmission structure includes a conductor-backed coplanar waveguide (CBCPW) transmission line comprising metal layers formed on both sides of a board, a first signal line and a first ground line formed by removing the metal layer on one side of the board according to a pattern line, a plurality of via holes formed on the first ground line, proximate to the pattern line, and a parallel transmission line which forms a second signal line and a second ground line parallel with the second signal line, by being connected at one end with the first signal line and the first ground line in a substantially perpendicular direction with respect to the board, respectively. By the parallel transmission line which is connected with the planar transmission line in a perpendicular direction, a compact-sized wideband converter can be provided at an economical price.
    • 用于转换传输结构的装置包括导体背面的共面波导(CBCPW)传输线,其包括形成在板的两侧上的金属层,第一信号线和第一接地线,其通过去除 基于图案线的板,形成在第一接地线上的多个通孔,靠近图案线,以及并行传输线,其形成与第二信号线平行的第二信号线和第二接地线,通过 在一端分别与第一信号线和第一接地线相对于板基本垂直的方向连接。 通过与平面传输线在垂直方向上连接的并行传输线,可以以经济的价格提供紧凑型宽带转换器。