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    • 1. 发明授权
    • Antenna apparatus utilizing aperture of transmission line
    • 利用传输线孔径的天线装置
    • US07872612B2
    • 2011-01-18
    • US12155247
    • 2008-05-30
    • Kanji OtsukaTamotsu UsamiYutaka AkiyamaChihiro Ueda
    • Kanji OtsukaTamotsu UsamiYutaka AkiyamaChihiro Ueda
    • H01Q9/28
    • H01Q13/06
    • An antenna apparatus utilizing an aperture of transmission line, which is connected to a first transmission line having a predetermined characteristic impedance, includes a tapered line portion, and an aperture portion. The tapered line portion is connected to one end of the transmission line, and the tapered line portion includes a second transmission line including a pair of line conductors. The tapered line portion keeps a predetermined characteristic impedance constant and expands at least one of a width of the transmission line and an interval in a tapered shape at a predetermined taper angle. The aperture portion has a radiation aperture connected to one end of the tapered line portion. A size of one side of the aperture end plane of the aperture portion is set to be equal to or higher than a quarter wavelength of the minimum operating frequency of the antenna apparatus.
    • 利用连接到具有预定特性阻抗的第一传输线的传输线孔径的天线装置包括锥形线部分和开口部分。 锥形线部分连接到传输线的一端,并且锥形线部分包括包括一对线导体的第二传输线。 锥形线部分保持预定的特性阻抗恒定,并以预定的锥角将传输线的宽度和间隔的至少一个以锥形形状扩展。 开口部分具有连接到锥形线部分的一端的辐射孔。 开口部的孔径端面的一侧的尺寸被设定为等于或高于天线装置的最小工作频率的四分之一波长。
    • 2. 发明申请
    • Antenna apparatus utilizing aperture of transmission line
    • 利用传输线孔径的天线装置
    • US20080316136A1
    • 2008-12-25
    • US12155247
    • 2008-05-30
    • Kanji OtsukaTamotsu UsamiYutaka AkiyamaChihiro Ueda
    • Kanji OtsukaTamotsu UsamiYutaka AkiyamaChihiro Ueda
    • H01Q9/28
    • H01Q13/06
    • An antenna apparatus utilizing an aperture of transmission line, which is connected to a first transmission line having a predetermined characteristic impedance, includes a tapered line portion, and an aperture portion. The tapered line portion is connected to one end of the transmission line, and the tapered line portion includes a second transmission line including a pair of line conductors. The tapered line portion keeps a predetermined characteristic impedance constant and expands at least one of a width of the transmission line and an interval in a tapered shape at a predetermined taper angle. The aperture portion has a radiation aperture connected to one end of the tapered line portion. A size of one side of the aperture end plane of the aperture portion is set to be equal to or higher than a quarter wavelength of the minimum operating frequency of the antenna apparatus.
    • 利用连接到具有预定特性阻抗的第一传输线的传输线孔径的天线装置包括锥形线部分和开口部分。 锥形线部分连接到传输线的一端,并且锥形线部分包括包括一对线导体的第二传输线。 锥形线部分保持预定的特性阻抗恒定,并以预定的锥角将传输线的宽度和间隔的至少一个以锥形形状扩展。 开口部分具有连接到锥形线部分的一端的辐射孔。 开口部的孔径端面的一侧的尺寸被设定为等于或高于天线装置的最小工作频率的四分之一波长。
    • 5. 发明授权
    • Electrostatic discharge protection circuit and terminating resistor circuit
    • 静电放电保护电路和终端电阻电路
    • US07791852B2
    • 2010-09-07
    • US11819579
    • 2007-06-28
    • Kanji OtsukaTamotsu UsamiYutaka AkiyamaTsuneo ItoYuko Tanba
    • Kanji OtsukaTamotsu UsamiYutaka AkiyamaTsuneo ItoYuko Tanba
    • H02H3/22
    • H01L27/0266
    • Disclosed is an electrostatic discharge protection circuit capable of realizing speeding up of differential signals by reducing a capacitance of the circuit. Transmission lines are connected to an IN terminal and an IN Bar terminal and differential signals are input to the terminals. The ESD protection circuit is connected to the transmission lines and protects an internal circuit from a surge voltage applied to the IN terminal and the IN Bar terminal. A pair of transistors of the ESD protection circuit is formed in the same well. Thereby, when differential signals transit, charges in drains of the pair of transistors holding a state before a transition transfer in the same well. As a result, the capacitances in the drains of the pair of transistors are reduced with respect to the transition of differential signals so that the speeding up of differential signals can be realized.
    • 公开了一种能够通过减小电路的电容来实现差分信号的加速的静电放电保护电路。 传输线连接到IN端子,IN条形端子和差分信号输入端子。 ESD保护电路连接到传输线,并保护内部电路免受施加到IN端子和IN Bar端子的浪涌电压。 ESD保护电路的一对晶体管形成在同一个阱中。 因此,当差分信号转移时,在同一井内转移转移之前保持状态的一对晶体管的漏极中的电荷。 结果,一对晶体管的漏极中的电容相对于差分信号的转变而减小,从而可以实现差分信号的加速。
    • 6. 发明授权
    • Narrow impedance conversion device
    • 窄阻抗转换器件
    • US07446625B2
    • 2008-11-04
    • US11500943
    • 2006-08-09
    • Kanji OtsukaTamotsu UsamiYutaka Akiyama
    • Kanji OtsukaTamotsu UsamiYutaka Akiyama
    • H03H7/38H01P1/16
    • H01P5/02
    • An impedance conversion device has four conductors arranged so that the first and second conductors form a transmission line having a first characteristic impedance, the third and fourth conductors form a transmission line having the first characteristic impedance, the first and third conductors form a transmission line having a second characteristic impedance, and the second and fourth conductors form a third transmission line having the second characteristic impedance. The second and fourth conductors are interconnected at proximate ends through a resistance equal to the first characteristic impedance. The third and fourth conductors are interconnected at proximate ends through a resistance equal to the second characteristic impedance. The lateral dimensions of the impedance conversion device are small enough to permit insertion in a stacked pair line.
    • 阻抗转换装置具有四个导体,其布置成使得第一和第二导体形成具有第一特征阻抗的传输线,第三和第四导体形成具有第一特征阻抗的传输线,第一和第三导体形成传输线, 第二特征阻抗,第二和第四导体形成具有第二特性阻抗的第三传输线。 第二和第四导体通过等于第一特征阻抗的电阻在近端互连。 第三和第四导体通过等于第二特征阻抗的电阻在近端互连。 阻抗转换装置的横向尺寸足够小以允许插入堆叠的对线。
    • 7. 发明申请
    • Electrostatic discharge protection circuit and terminating resistor circuit
    • 静电放电保护电路和终端电阻电路
    • US20080042686A1
    • 2008-02-21
    • US11819579
    • 2007-06-28
    • Kanji OtsukaTamotsu UsamiYutaka AkiyamaTsuneo ItoYuko Tanba
    • Kanji OtsukaTamotsu UsamiYutaka AkiyamaTsuneo ItoYuko Tanba
    • H03K19/003H02H9/04
    • H01L27/0266
    • Disclosed is an electrostatic discharge protection circuit capable of realizing speeding up of differential signals by reducing a capacitance of the circuit. Transmission lines are connected to an IN terminal and an IN Bar terminal and differential signals are input to the terminals. The ESD protection circuit is connected to the transmission lines and protects an internal circuit from a surge voltage applied to the IN terminal and the IN Bar terminal. A pair of transistors of the ESD protection circuit is formed in the same well. Thereby, when differential signals transit, charges in drains of the pair of transistors holding a state before a transition transfer in the same well. As a result, the capacitances in the drains of the pair of transistors are reduced with respect to the transition of differential signals so that the speeding up of differential signals can be realized.
    • 公开了一种能够通过减小电路的电容来实现差分信号的加速的静电放电保护电路。 传输线连接到IN端子,IN条形端子和差分信号输入端子。 ESD保护电路连接到传输线,并保护内部电路免受施加到IN端子和IN Bar端子的浪涌电压。 ESD保护电路的一对晶体管形成在同一个阱中。 因此,当差分信号传输时,在同一井内转移转移之前保持状态的一对晶体管的漏极中的电荷。 结果,一对晶体管的漏极中的电容相对于差分信号的转变而减小,从而可以实现差分信号的加速。
    • 8. 发明申请
    • Narrow impedance conversion device
    • 窄阻抗转换器件
    • US20070176708A1
    • 2007-08-02
    • US11500943
    • 2006-08-09
    • Kanji OtsukaTamotsu UsamiYutaka Akiyama
    • Kanji OtsukaTamotsu UsamiYutaka Akiyama
    • H03H7/38
    • H01P5/02
    • An impedance conversion device has four conductors arranged so that the first and second conductors form a transmission line having a first characteristic impedance, the third and fourth conductors form a transmission line having the first characteristic impedance, the first and third conductors form a transmission line having a second characteristic impedance, and the second and fourth conductors form a third transmission line having the second characteristic impedance. The second and fourth conductors are interconnected at proximate ends through a resistance equal to the first characteristic impedance. The third and fourth conductors are interconnected at proximate ends through a resistance equal to the second characteristic impedance. The lateral dimensions of the impedance conversion device are small enough to permit insertion in a stacked pair line.
    • 阻抗转换装置具有四个导体,其布置成使得第一和第二导体形成具有第一特征阻抗的传输线,第三和第四导体形成具有第一特征阻抗的传输线,第一和第三导体形成传输线, 第二特征阻抗,第二和第四导体形成具有第二特性阻抗的第三传输线。 第二和第四导体通过等于第一特征阻抗的电阻在近端互连。 第三和第四导体通过等于第二特征阻抗的电阻在近端互连。 阻抗转换装置的横向尺寸足够小以允许插入堆叠的对线。
    • 10. 发明授权
    • Signal transmission apparatus and interconnection structure
    • 信号传输装置和互连结构
    • US07446567B2
    • 2008-11-04
    • US10775223
    • 2004-02-11
    • Kanji OtsukaTamotsu Usami
    • Kanji OtsukaTamotsu Usami
    • H03K17/16H03K19/094
    • H04L5/1461
    • Apparatus for transmitting a digital signal within, for example, an integrated circuit includes a signal transmission line with a directional coupler at one or both ends. The directional coupler blocks the direct-current component of the digital signal while transmitting the alternating-current component, including enough higher harmonics to transmit a well-defined pulse waveform. A suitable directional coupler consists of two adjacent line pairs in materials with different dielectric constants. The apparatus may also include a driver of the inverter type, a receiver of the differential amplifier type, a terminating resistor, and a power-ground transmission line pair for supplying power to the driver. An all-metallic transmission-line structure is preferably maintained from the output interconnections in the driver to the input interconnections in the receiver.
    • 在例如集成电路内发送数字信号的装置包括在一端或两端具有定向耦合器的信号传输线。 定向耦合器阻止数字信号的直流分量,同时传输交流分量,包括足够的高次谐波以传输明确定义的脉冲波形。 合适的定向耦合器由具有不同介电常数的材料中的两个相邻线对组成。 该装置还可以包括逆变器类型的驱动器,差分放大器类型的接收器,终端电阻器和用于向驱动器供电的电源 - 地线传输线对。 优选地,从驱动器中的输出互连到接收器中的输入互连,保持全金属传输线结构。