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    Small broadband monopole antenna having perpendicular ground plane with electromagnetically coupled feed
    11.
    发明授权
    Small broadband monopole antenna having perpendicular ground plane with electromagnetically coupled feed 有权
    具有电磁耦合馈电的垂直接地平面的小宽带单极天线

    公开(公告)号：US07268730B2

    公开(公告)日：2007-09-11

    申请号：US11376336

    申请日：2006-03-16

    Applicant: Ikmo Park ,  Jong-ho Jung ,  Young-min Moon ,  Seong-soo Lee ,  Young-eil Kim

    Inventor： Ikmo Park ,  Jong-ho Jung ,  Young-min Moon ,  Seong-soo Lee ,  Young-eil Kim

    IPC: H01Q1/38

    CPC classification number: H01Q9/0407 ,  H01Q9/30

    Abstract: A small broadband monopole antenna having a perpendicular ground plane with an electromagnetically coupled feed is provided. The small broadband monopole antenna may be realized as a small antenna having a size of 0.085λ0×0.085λ0×0.085λ0 by positioning a folded strip line under a shorted square disc. A resonance of the shorted square disc may be coupled to a resonance of the square folded strip line so as to form a wide bandwidth of about 36.6% of a central frequency of 2.313 GHz based on a VSWR≦2. Also, rectangular slits may be inserted into the perpendicular ground plane to improve a distortion of a radiation pattern that forms on the perpendicular ground plane so as to reduce a backward radiation by 3 dBi or more. The small broadband monopole antenna exhibits a forward radiation pattern similar to that of a general monopole antenna and has a gain of about 2.6 dBi within a bandwidth.

    Abstract translation: 提供具有电磁耦合馈电的具有垂直接地平面的小宽带单极天线。 小型宽带单极天线可以通过定位来实现为具有大小为0.085λλ0.085λλ0.085λλ0<0的小天线 在短方形盘下的折叠带状线。 短路方形盘的谐振可以耦合到方形折叠带状线的谐振，从而基于VSWR <= 2形成约2.313GHz的中心频率的约36.6％的宽带宽。 此外，矩形狭缝可以插入到垂直接地平面中，以改善在垂直接地平面上形成的辐射图案的变形，以便将后向辐射减小3dBii或更大。 小宽带单极天线具有类似于一般单极天线的正向辐射图，并且在带宽内具有约2.6dBi的增益。

    Tunable active inductor
    13.
    发明授权
    Tunable active inductor 有权
    可调谐有源电感

    公开(公告)号：US07253707B2

    公开(公告)日：2007-08-07

    申请号：US11141123

    申请日：2005-05-31

    Applicant: Rajarshi Mukhopadhy ,  Sebastien Nuttinck ,  Sang-Hyun Woo ,  Jong-Han Kim ,  Seong-Soo Lee ,  Chang-Ho Lee ,  Joy Laskar

    Inventor： Rajarshi Mukhopadhy ,  Sebastien Nuttinck ,  Sang-Hyun Woo ,  Jong-Han Kim ,  Seong-Soo Lee ,  Chang-Ho Lee ,  Joy Laskar

    IPC: H03H11/00 ,  H03H11/04

    CPC classification number: H03H11/50 ,  H03H11/48

    Abstract: An active inductor capable of tuning a self-resonant frequency, an inductance, a Q factor, and a peak Q frequency by applying a tunable feedback resistor to a cascode-grounded active inductor is disclosed. The tunable active inductor includes a first transistor having a source connected to a power supply voltage and a gate connected to first bias voltage; a second transistor having a drain connected to a drain of the first transistor and a gate connected to a second bias voltage; a third transistor having a drain connected to a source of the second transistor and a source connected to a ground voltage; a fourth transistor having a drain connected to a gate of the third transistor, a source connected to the ground voltage and a gate connected to a third bias voltage; a fifth transistor having a source connected to the drain of the fourth transistor and a drain connected to the power supply voltage.

    Abstract translation: 公开了一种通过将可调谐反馈电阻器施加到共源共栅接地有源电感器来调谐自谐振频率，电感，Q因子和峰值Q频率的有源电感器。 可调谐有源电感器包括具有连接到电源电压的源极和连接到第一偏置电压的栅极的第一晶体管; 第二晶体管，具有连接到所述第一晶体管的漏极的漏极和连接到第二偏置电压的栅极; 具有连接到所述第二晶体管的源极的漏极和连接到接地电压的源极的第三晶体管; 具有连接到第三晶体管的栅极的漏极的第四晶体管，连接到接地电压的源极和连接到第三偏置电压的栅极; 第五晶体管，其源极连接到第四晶体管的漏极，漏极连接到电源电压。

    Mobile terminal with plural antennas
    14.
    发明申请
    Mobile terminal with plural antennas 有权
    具有多个天线的移动终端

    公开(公告)号：US20070139281A1

    公开(公告)日：2007-06-21

    申请号：US11522966

    申请日：2006-09-19

    Applicant: Se-hyun Park ,  Byung-tae Yoon ,  Young-eil Kim ,  Seong-soo Lee

    Inventor： Se-hyun Park ,  Byung-tae Yoon ,  Young-eil Kim ,  Seong-soo Lee

    IPC: H01Q1/24

    CPC classification number: H01Q1/243 ,  H01Q9/0407 ,  H01Q9/0421 ,  H01Q21/28

    Abstract: Disclosed is a mobile terminal with plural antennas. The mobile terminal with plural antennas, comprising a circuit board formed with a variety of elements, at least one first antenna formed on one surface of the circuit board to transmit and receive a radio signal for mobile communications, and at least one second antenna formed on the other surface of the circuit board to transmit and receive a radio signal for additional services. Accordingly, as the size of the mobile terminal does not necessarily increase to have plural antennas, the mobile terminal can be miniaturized.

    Abstract translation: 公开了具有多个天线的移动终端。 具有多个天线的移动终端，包括形成有各种元件的电路板，形成在电路板的一个表面上的至少一个第一天线，用于发送和接收用于移动通信的无线电信号，以及至少一个第二天线，形成在 电路板的另一个表面用于发送和接收无线电信号以用于附加业务。 因此，随着移动终端的尺寸不一定增加到具有多个天线，移动终端可以被小型化。

    Adjustable chaotic signal generator using pulse modulation for ultra wideband (UWB) communications and chaotic signal generating method thereof
    16.
    发明申请
    Adjustable chaotic signal generator using pulse modulation for ultra wideband (UWB) communications and chaotic signal generating method thereof 有权
    可调混沌信号发生器采用超宽带（UWB）通信脉冲调制及其混沌信号产生方法

    公开(公告)号：US20070121945A1

    公开(公告)日：2007-05-31

    申请号：US11600864

    申请日：2006-11-17

    Applicant: Sang-min Han ,  Popov Oleg ,  Seong-soo Lee

    Inventor： Sang-min Han ,  Popov Oleg ,  Seong-soo Lee

    IPC: H04L9/00

    CPC classification number: H04L27/001 ,  H04B1/71632 ,  H04B1/7174 ,  H04L5/023

    Abstract: An adjustable chaotic signal generator using pulse modulation for UWB communications, and a chaotic signal generating method thereof are provided. The chaotic signal generator for UWB communications includes a plurality of pulse generators which generates pulses of different frequencies; at least one combiner which combines the pulses generated at the pulse generators; and a plurality of local oscillators which receives signals from the combiner, respectively, and generates a chaotic signal by increasing the received signals to different frequency bands. Accordingly, a plurality of users can conduct the radio communications in a specific wireless communication range at the same time by generating the chaotic signal that can be split to the multiple channels. Also, the chaotic signal generator is structured using devices integratable on an integrated circuit.

    Abstract translation: 提供一种使用UWB通信脉冲调制的可调混沌信号发生器及其混沌信号产生方法。 用于UWB通信的混沌信号发生器包括产生不同频率的脉冲的多个脉冲发生器; 组合脉冲发生器产生的脉冲的至少一个组合器; 以及分别从组合器接收信号的多个本地振荡器，并且通过将接收的信号增加到不同的频带来产生混沌信号。 因此，多个用户可以通过生成可以分割成多个信道的混沌信号，同时在特定的无线通信范围内进行无线通信。 此外，混沌信号发生器使用可集成在集成电路上的器件进行结构化。

    Communication system using length shift keying modulation
    17.
    发明申请
    Communication system using length shift keying modulation 有权
    通信系统采用长距离键控调制

    公开(公告)号：US20070121735A1

    公开(公告)日：2007-05-31

    申请号：US11499700

    申请日：2006-08-07

    Applicant: Jae-hyon Kim ,  Young-hwan Kim ,  Seong-soo Lee

    Inventor： Jae-hyon Kim ,  Young-hwan Kim ,  Seong-soo Lee

    IPC: H04L27/00

    CPC classification number: H04L27/00

    Abstract: A communication system using a length shift keying (LSK) modulation method provides a transmitter having a carrier signal generator for generating carrier signals, and a modulator for modulating lengths of the carrier signals from the carrier signal generator according to combinations of data bits, and a receiver having an integrator for calculating an energy value by integrating the carrier signal that corresponds to a data bit combination, and a data judgment unit for judging the data bit combination by comparing the energy value with a predetermined threshold value. Power is maintained without changing the bandwidth of a communication signal when the communication signal is modulated.

    Abstract translation: 使用长移键控（LSK）调制方法的通信系统提供具有用于产生载波信号的载波信号发生器的发射机，以及用于根据数据比特的组合来调制来自载波信号发生器的载波信号长度的调制器， 具有用于通过对与数据位组合相对应的载波信号进行积分来计算能量值的积分器的接收机，以及用于通过将能量值与预定阈值进行比较来判断数据比特组合的数据判断单元。 当通信信号被调制时，维持功率而不改变通信信号的带宽。

    Self-calibrating apparatus and method in a mobile transceiver
    18.
    发明授权
    Self-calibrating apparatus and method in a mobile transceiver 有权
    移动收发器中的自校准装置和方法

    公开(公告)号：US07130589B2

    公开(公告)日：2006-10-31

    申请号：US10815445

    申请日：2004-04-01

    Applicant: Kwy-Ro Lee ,  Pil-Soon Choi ,  Mi-Hyun Son ,  Seong-Soo Lee

    Inventor： Kwy-Ro Lee ,  Pil-Soon Choi ,  Mi-Hyun Son ,  Seong-Soo Lee

    IPC: H04B17/00 ,  H03C1/62 ,  H04Q7/20

    CPC classification number: H04L27/364 ,  H04B17/0085 ,  H04B17/21 ,  H04L2027/0016 ,  H04L2027/0018 ,  H04L2027/0026

    Abstract: An apparatus and method for self-calibrating mismatching orthogonal signals and non-linearity of a circuit occurring in a mobile transceiver. For this, in a mobile terminal, a transmitter is used as a signal generator and a receiver is used as a response characteristic measurer. A base band processor calibrates mismatching signals and non-linearity in a reception side and a transmission side, based on a test signal received via the transmitter and a test signal received via the receiver.

    Abstract translation: 用于自校准错配正交信号和在移动收发机中发生的电路的非线性的装置和方法。 为此，在移动终端中，使用发射机作为信号发生器，并且使用接收机作为响应特性测量器。 基带处理器基于经由发送器接收的测试信号和经由接收器接收的测试信号来校准接收侧和发送侧的不匹配信号和非线性。

    On-chip balun and transceiver using the same and method for fabricating on-chip balun
    19.
    发明申请
    On-chip balun and transceiver using the same and method for fabricating on-chip balun 有权
    片上平衡 - 不平衡变压器和收发器采用相同的方法制造片上平衡 - 不平衡转换器

    公开(公告)号：US20060202776A1

    公开(公告)日：2006-09-14

    申请号：US11330104

    申请日：2006-01-12

    Applicant: Jae-sup Lee ,  Dong-hyun Lee ,  Seong-soo Lee

    Inventor： Jae-sup Lee ,  Dong-hyun Lee ,  Seong-soo Lee

    IPC: H03H7/42

    CPC classification number: H01F17/0013 ,  H01F2017/008

    Abstract: Provided are an on-chip balun, a transceiver using the on-chip balun, and a method for fabricating the on-chip balun. The on-chip balun includes: a first metal winding including a port grounded and a port to which an unbalanced signal is input; a second winding outputting an induced current generated by the first metal winding as two signals having about equal intensity and a phase difference of about 180°; and a ground shield positioned between the first and second metal windings and having a symmetric structure so as to generate a symmetric parasitic capacitance between the ground shield and the second metal winding. The ground shield can be inserted between the first and second metal windings to remove an asymmetrical parasitic capacitance so as to reduce a phase imbalance and a gain imbalance of an output value of the second metal winding. As a result, a highly balanced on-chip balun can be fabricated.

    Abstract translation: 提供了片上平衡 - 不平衡转换器，使用片上平衡 - 不平衡转换器的收发器以及制造片上平衡 - 不平衡转换器的方法。 片上平衡 - 不平衡变压器包括：第一金属绕组，其包括接地的端口和输入不平衡信号的端口; 输出由第一金属绕组产生的感应电流的第二绕组作为具有大约相同强度的两个信号和约180°的相位差; 以及位于第一和第二金属绕组之间并具有对称结构以便在接地屏蔽和第二金属绕组之间产生对称的寄生电容的接地屏蔽。 接地屏蔽可以插入在第一和第二金属绕组之间以去除不对称的寄生电容，以便减少相位不平衡和第二金属绕组的输出值的增益不平衡。 因此，可以制造高度平衡的片上平衡 - 不平衡变压器。

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