公开(公告)号：US20090140823A1

公开(公告)日：2009-06-04

申请号：US12058781

申请日：2008-03-31

申请人： Dong-hyun Lee ,  Jung-han Choi ,  Young-hwan Kim ,  Chul-soo Kim ,  Sung-tae Choi ,  Cheol-gyu Hwang

发明人： Dong-hyun Lee ,  Jung-han Choi ,  Young-hwan Kim ,  Chul-soo Kim ,  Sung-tae Choi ,  Cheol-gyu Hwang

IPC分类号： H01P5/10 ,  H03H3/00

CPC分类号： H01P5/10 ,  H01P11/00 ,  Y10T29/49117

摘要： A broadband microstrip balun and a method of manufacturing the same are provided. In the balun, transmission lines formed at different layers partially overlap in parallel with each other, and a common ground having a predetermined opening is inserted between the transmission lines. Thus, an unbalanced signal may be converted into a balanced signal in a broad frequency band using resonance of a common ground plate with the opening and a Bethe hall effect. Also, impedance matching is readily enabled, thereby reducing a parasitic element.

摘要翻译： 提供了一种宽带微带平衡 - 不平衡转换器及其制造方法。 在平衡 - 不平衡转换器中，形成在不同层的传输线部分地彼此平行地重叠，并且在传输线之间插入具有预定开口的公共地面。 因此，使用公共接地板与开口和Bethe霍尔效应的共振，不平衡信号可以被转换成宽频带中的平衡信号。 此外，容易实现阻抗匹配，从而减少寄生元件。

公开(公告)号：US20090121811A1

公开(公告)日：2009-05-14

申请号：US12045101

申请日：2008-03-10

申请人： Sung-tae CHOI ,  Jung-han Choi ,  Cheol-gyu Hwang ,  Young-hwan Kim ,  Dong-hyun Lee

发明人： Sung-tae CHOI ,  Jung-han Choi ,  Cheol-gyu Hwang ,  Young-hwan Kim ,  Dong-hyun Lee

IPC分类号： H01P1/20 ,  H05K3/10

CPC分类号： H01P1/2013 ,  H01P11/007 ,  Y10T29/49155

摘要： A multilayered coplanar waveguide (CPW) filter unit and a method of manufacturing the same are provided. A plate having a capacitance element is formed on or below a CPW layer including a signal line for transmitting a signal and a ground plane. As the filter unit has a multilayered structure, characteristic impedance may be reduced without increasing the width of the signal line. Where an inductor line is inserted between the signal line and the plate, a clear frequency response curve may be obtained without performing an additional process or increasing the area of the filter unit.

摘要翻译： 提供了一种多层共面波导（CPW）滤波器单元及其制造方法。 具有电容元件的板形成在CPW层上或下方，包括用于发送信号的信号线和接地层。 由于滤波器单元具有多层结构，可以在不增加信号线的宽度的情况下降低特性阻抗。 在信号线和板之间插入电感线的情况下，可以获得清晰的频率响应曲线，而不需要执行额外的处理或增加滤波器单元的面积。

公开(公告)号：US20070265011A1

公开(公告)日：2007-11-15

申请号：US11603108

申请日：2006-11-22

申请人： Sang-min Han ,  Young-hwan Kim

发明人： Sang-min Han ,  Young-hwan Kim

IPC分类号： H04Q7/20

CPC分类号： H04B17/327

摘要： A wireless communication terminal and a method for controlling power and using a channel by adjusting a channel bandwidth of the wireless communication terminal. The wireless communication terminal generates a plurality of channels by dividing at least part of a frequency band for ultra-wideband communications to a plurality of frequency bands, receives a chaotic signal having a plurality of frequency components in the channels, and adjusts a frequency bandwidth which forms the channel when a certain condition is satisfied. Accordingly, since the chaotic carrier is transmitted and received in the narrow frequency band by adjusting the frequency bandwidth, the power consumption can be reduced drastically and the high-quality communications are feasible between the portable terminal and the wireless headset in the optimized channel environment. Furthermore, a greater number of portable terminals and wireless headsets can execute the radio communications in a certain wireless communication range.

摘要翻译： 一种无线通信终端和通过调整无线通信终端的信道带宽来控制功率和使用信道的方法。 无线通信终端通过将用于超宽带通信的频带的至少一部分划分到多个频带来生成多个信道，接收在信道中具有多个频率成分的混沌信号，并且调整频带宽度 当满足某个条件时，形成通道。 因此，由于通过调整频率带宽在窄频带内发送和接收混沌载波，所以在优化的信道环境中，便携式终端和无线耳机之间的功耗可以大大降低，高质量通信也是可行的。 此外，更多数量的便携式终端和无线耳机可以在某个无线通信范围内执行无线电通信。

公开(公告)号：US20060208954A1

公开(公告)日：2006-09-21

申请号：US11365849

申请日：2006-03-02

申请人： Sang-min Han ,  Young-hwan Kim ,  Seong-soo Lee ,  Hyung-kuk Yoon ,  Young-joong Yoon ,  Yo-han Lim ,  Ick-jae Yoon ,  Hyung-rak Kim

发明人： Sang-min Han ,  Young-hwan Kim ,  Seong-soo Lee ,  Hyung-kuk Yoon ,  Young-joong Yoon ,  Yo-han Lim ,  Ick-jae Yoon ,  Hyung-rak Kim

IPC分类号： H01Q13/10

CPC分类号： H01Q13/08 ,  H01Q1/38 ,  H01Q13/10

摘要： An ultra wideband antenna is provided that filters a predetermined frequency signal. The ultra wideband antenna includes a power feeding part that receives a supply of an external electromagnetic energy; a radiator excited by the electromagnetic energy fed through the power feeding part and radiating an electromagnetic wave; and a stub, provided on the radiator in a direction parallel to a direction of an electric field formed by the electromagnetic wave, that intercepts transmission/reception of a predetermined frequency band signal. The length of the stub may be ¼ of a wavelength of the intermediate frequency of the predetermined frequency band to be removed to filter the corresponding frequency band signal. The ultra wideband antenna simplifies the construction of an ultra wideband receiving system with the power loss and noise characteristics of the system improved.

公开(公告)号：US20060198522A1

公开(公告)日：2006-09-07

申请号：US11368630

申请日：2006-03-07

申请人： Chia Chong ,  Su Yong ,  Seong-soo Lee ,  Young-hwan Kim

发明人： Chia Chong ,  Su Yong ,  Seong-soo Lee ,  Young-hwan Kim

IPC分类号： H04L9/00

CPC分类号： H04L9/001 ,  H04L2209/08

摘要： Provided are a wide band-differential chaos shift keying modulation method, a transmitting apparatus adopting the wide band-differential chaos shift keying modulation method, a wide band-differential chaos shift keying demodulation method, and a receiving apparatus adopting the wide band-differential chaos shift keying demodulation method. The wide band-differential chaos shift keying modulation method includes: generating a wide band chaotic signal; delaying the wide band chaotic signal; multiplying the delayed wide band chaotic signal by an information signal to output a multiplied signal; and performing a switching operation so as to alternately transmit the wide band chaotic signal and the multiplied signal. Thus, the invention can be realized without an APLL, a mixer, an FM modulator, and the like, to reduce power consumption and manufacturing cost for the transmitting apparatus. Thus, noise characteristics and security performance can be high, and the wide band-DCSK modulation method can be robust to multi-path.

摘要翻译： 提供了宽带差分混沌移频键控调制方法，采用宽带差分混沌移频键控调制方法的发送装置，宽带差分混沌移频键控解调方法和采用宽带差分混沌的接收装置 移位键控解调方法。 宽带差分混沌调频调制方法包括：产生宽带混沌信号; 延迟宽带混沌信号; 将延迟的宽带混沌信号乘以信息信号以输出相乘的信号; 并执行切换操作，以交替地发送宽带混沌信号和相乘的信号。 因此，可以实现本发明，而无需APLL，混频器，FM调制器等，以减少发射装置的功耗和制造成本。 因此，噪声特性和安全性能可能很高，宽带DCSK调制方法对于多径可以是鲁棒的。