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    • 31. 发明申请
    • Mounting structure of high-frequency semiconductor apparatus and its production method
    • 高频半导体装置的安装结构及其制作方法
    • US20040239453A1
    • 2004-12-02
    • US10871054
    • 2004-06-21
    • Hitachi, Ltd.
    • Yoshiyuki Sasada
    • H01P007/10H03B005/18H03B007/12G01S007/28
    • H01P11/008H01P7/10
    • In a high-frequency circuit having a substrate having a high-frequency transmission line and an dielectric resonator formed on said substrate so that said dielectric resonator and said high-frequency transmission line may be coupled electro-magnetically to each other, a hole part or a cavity part is formed at a part of said substrate and a dielectric resonator is embedded in said hole part or said cavity part. In the same object, a high-frequency circuit having a dielectric resonator is produced by the step for forming a high-frequency transmission line on a substrate, the step for forming a hole part or a cavity part on a part of the substrate, and the step for mounting a dielectric resonator in the hole par formed on the surface of the substrate.
    • 在具有高频传输线的衬底和形成在所述衬底上的介质谐振器的高频电路中,使得所述介质谐振器和所述高频传输线可以彼此电磁耦合,孔部分或 在所述基板的一部分上形成空腔部分,并且介电谐振器嵌入在所述孔部分或所述空腔部分中。 在同一个目的中,通过在衬底上形成高频传输线的步骤,在衬底的一部分上形成孔部或空腔部的步骤,制造具有介质谐振器的高频电路,以及 将介质谐振器安装在基板表面上形成的孔中的步骤。
    • 33. 发明申请
    • LC oscillator with small oscillation frequency variations
    • LC振荡器具有较小的振荡频率变化
    • US20030189466A1
    • 2003-10-09
    • US10267634
    • 2002-10-10
    • Masahiro Kitamura
    • H03B005/18
    • H03B5/1228H03B5/1215H03B5/1253H03B5/1293H03J2200/10H03J2200/36
    • An LC oscillator includes inductors, a variable capacitor section, an adjusting section for varying the capacitance of the variable capacitor section in response to a control voltage supplied in accordance with a digital control signal, and an additional variable capacitor section for varying its capacitance in response to an additional control voltage. The variable capacitor section includes first to Kth capacitors, where K is an integer greater than one. The adjusting section includes buffer section, each of which selectively generates one of a first voltage and a second voltage lower than the first voltage in response to a kth bit of the digital control signal, where k is an integer varying from one to K, thereby generating first to Kth control voltages to be supplied to the first to Kth capacitors.
    • LC振荡器包括电感器,可变电容器部分,用于响应于根据数字控制信号提供的控制电压来改变可变电容器部分的电容的调节部分和用于响应于改变其电容的附加可变电容器部分 达到额外的控制电压。 可变电容器部分包括第一至第K个电容器,其中K是大于1的整数。 调整部分包括缓冲器部分,每个缓冲器部分响应于数字控制信号的第k位而选择性地产生低于第一电压的第一电压和第二电压中的一个,其中k是从1变化到K的整数,因此 产生要提供给第一至第K电容器的第一至第K控制电压。
    • 37. 发明申请
    • Three-band switching oscillator suitable for size reduction
    • 三频切换振荡器适合减小尺寸
    • US20010050596A1
    • 2001-12-13
    • US09870816
    • 2001-05-31
    • Alps Electric Co., Ltd.
    • Kazuhiro NakanoHiroki NoumiIsao Hasegawa
    • H03B005/12H03B005/18H03J005/24H03J007/08
    • H03B5/1847H03B5/1203H03B5/1231H03B5/1243H03B5/1262H03B2201/0208H03B2201/0258H03B2201/038
    • In a three-band switching oscillator, a switching circuit is provided to switch the operating conditions of first and second voltage-controlled oscillator and to switching an oscillation frequency band of said first voltage-controlled oscillator, and is composed of a first switch for supplying a current to place the first voltage-controlled oscillator into operation, a second switch for supplying a current to place the second voltage-controlled oscillator into operation, and first and second switching terminals for receiving switching voltages. The switching circuit switches the first switch in accordance with a switching voltage inputted to the first switching terminal and switches an oscillation frequency band in accordance with a switching voltage inputted to the second switching terminal, while only when a high-level switching voltage is inputted to the second switching terminal, the second switch is placed into an open condition by a high-level switching voltage inputted to the first switching terminal and placed into a closed condition by a low-level switching voltage inputted thereto, and when a low-level switching voltage is inputted to the second switching terminal, the second switch is placed into the open condition irrespective of the switching voltage inputted to the first switching terminal.
    • 在三频开关振荡器中,提供开关电路来切换第一和第二压控振荡器的工作条件,并切换所述第一压控振荡器的振荡频带,并由第一开关供给 用于将第一压控振荡器置于运行状态的电流,用于提供电流以使第二压控振荡器工作的第二开关,以及用于接收开关电压的第一和第二开关端子。 开关电路根据输入到第一开关端子的开关电压来切换第一开关,并且根据输入到第二开关端子的开关电压来切换振荡频带,而仅当高电平切换电压被输入到 第二开关端子,第二开关被输入到第一开关端子的高电平开关电压置于开路状态,并通过输入到其的低电平开关电压置于闭合状态,并且当低电平开关 电压被输入到第二开关端子,第二开关被置于打开状态,而与输入到第一开关端子的开关电压无关。
    • 38. 发明申请
    • VOLTAGE CONTROLLED OSCILLATION CIRCUIT
    • 电压控制振荡电路
    • US20010045870A1
    • 2001-11-29
    • US09338383
    • 1999-06-23
    • KIYOFUMI TAKAIKOJI RYUGO
    • H03B005/08H03B005/18H03J007/08
    • H03B1/04H03B2201/0208H03B2202/05H03B2202/07H03B2202/08
    • It is an object of the present invention to provide the voltage controlled oscillation circuit preventing the influence of a capacitor in the output side of the loop filter connected to a control voltage terminal. A voltage controlled oscillation circuit comprising of an amplifier circuit, a resonance circuit, a varactor diode, a choke element whose one end is connected to the cathode of a varactor diode, a capacitor connected between the other end of the choke element and a ground, and a resistor connected between the other end of the choke element and a control voltage terminal. A sub-resonance of the resonance system of the voltage controlled oscillation circuit due to the capacitor in the output side of the loop filter connected to the control voltage terminal can be eliminated, the abnormal oscillation of the voltage controlled oscillation circuit can be prevented, and the relationship between the oscillation frequency and the control voltage exhibits almost linear.
    • 本发明的目的是提供一种电压控制振荡电路,其防止连接到控制电压端子的环路滤波器的输出侧的电容器的影响。 一种压控振荡电路,包括放大电路,谐振电路,变容二极管,一端连接到变容二极管的阴极的扼流元件,连接在扼流圈元件的另一端与地之间的电容器, 以及连接在扼流圈元件的另一端和控制电压端子之间的电阻器。 可以消除由于连接到控制电压端子的环路滤波器的输出侧的电容器引起的压控振荡电路的谐振系统的副共振,可以防止压控振荡电路的异常振荡, 振荡频率与控制电压之间的关系几乎呈线性关系。
    • 39. 发明申请
    • Electronic component and manufacturing method therefor
    • 电子元件及其制造方法
    • US20010036684A1
    • 2001-11-01
    • US09791104
    • 2001-02-22
    • Kazuhiko Kitade
    • H01L021/50H01L021/44H03B007/12H03B005/18H01L021/48
    • H05K9/0022H05K3/0052H05K3/3405H05K3/3415H05K3/403H05K2201/09181H05K2201/10371Y10T29/4913Y10T29/49144Y10T29/49146Y10T29/49147Y10T29/49149Y10T29/49155Y10T29/49165
    • A plurality of surface-mounting components are mounted on a mother printed-circuit board provided with component-connecting electrodes, engagement holes, and case-fixing electrodes provided inside the engagement holes. Soldering paste is applied in the vicinity of the engagement holes or in an area covering a portion of each of the engagement holes and the vicinity of the engagement holes on the mother printed-circuit board from the side of the component-mounted surface such that soldering paste is not entirely filled in the engagement hole. A plurality of shielding cases are engaged in the mother printed-circuit board by inserting engagement protrusion portions of the shielding cases into the engagement holes. Then the engagement protrusion portions of the shielding cases are soldered to case-fixing electrodes inside the engagement holes by melting solder in the soldering paste. The mother printed-circuit board is then cut and divided into individual electronic components.
    • 多个表面安装部件安装在母版印刷电路板上,母版印刷电路板上设置有设置在接合孔内部的元件连接电极,接合孔和外壳固定电极。 将焊膏从部件安装表面侧施加到接合孔附近或覆盖母版印刷电路板上的每个接合孔的一部分和接合孔附近的区域,使得焊接 糊剂没有完全填充在接合孔中。 通过将屏蔽壳体的接合突起部分插入到接合孔中,多个屏蔽壳体与母版印刷电路板接合。 然后,通过熔化焊膏中的焊料将屏蔽壳体的接合突起部分焊接到接合孔内的壳体固定电极。 然后将母版印刷电路板切割并分成单独的电子部件。
    • 40. 发明申请
    • Oscillator and communication apparatus
    • 振荡器和通讯设备
    • US20010035794A1
    • 2001-11-01
    • US09844045
    • 2001-04-27
    • Murata Manufacturing Co., Ltd.
    • Masanori FujidaiFumitoshi SatoToshio Hata
    • H03B001/04H03B005/12H03B005/18
    • H03B5/1847H03B1/04H03B2202/012H03B2202/07
    • An oscillator includes an oscillating circuit and a resonating circuit connected to the oscillating circuit, and an amplifying circuit for amplifying signals output from the oscillating circuit. The oscillator also includes an added circuit having an isolator, frequency filter, or other suitable elements, disposed between the output portion of the oscillating circuit and the input portion of the amplifying circuit, so as to prevent transmission of unwanted waves, such as the higher harmonic component of the basic wave, and other such undesirable waves. The oscillator, and a communication apparatus including such oscillator, eliminates deterioration of phase noise properties caused by generation of unwanted wave components such as higher harmonics.
    • 振荡器包括振荡电路和连接到振荡电路的谐振电路,以及用于放大从振荡电路输出的信号的放大电路。 该振荡器还包括一个附加电路,该电路具有隔离器,频率滤波器或其它合适的元件,它们设置在振荡电路的输出部分和放大电路的输入部分之间,以便防止不需要的波的传输,例如较高的 基波的谐波分量,以及其他这种不希望的波。 振荡器和包括这种振荡器的通信装置消除了由诸如高次谐波等不希望的波分量的产生引起的相位噪声特性的恶化。