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    • 1. 发明授权
    • Oscillator and radio equipment
    • 振荡器和无线电设备
    • US06445256B1
    • 2002-09-03
    • US09675869
    • 2000-09-29
    • Kazumasa HarutaSadeo YamashitaKoichi SakamotoToru Tanizaki
    • Kazumasa HarutaSadeo YamashitaKoichi SakamotoToru Tanizaki
    • H03B912
    • H03B5/04H03B5/20
    • The present invention provides a small-sized oscillator facilitating the adjustment of a resonance frequency, permitting mass productivity to be improved, sufficiently suppressing a fundamental wave, and permitting cost reduction, and provides radio equipment using the oscillator. In this oscillator, an oscillation circuit is formed by providing a line and a Gunn diode on a dielectric substrate. An NRD guide serving as an output transmission line is formed by disposing a dielectric strip between upper and lower conductor plates, and the above-mentioned line and the NRD guide are coupled. The cut-off frequency of this NRD guide is determined so that the fundamental wave component of an oscillation signal from the oscillation circuit is cut off, so that higher harmonic components are propagated.
    • 本发明提供一种便于调谐共振频率的小型振荡器,可以提高批量生产率,充分抑制基波,并且降低成本,并提供使用该振荡器的无线电设备。 在该振荡器中,通过在电介质基板上设置线和耿氏二极管来形成振荡电路。 通过在上导体板和下导体板之间设置介质条来形成用作输出传输线的NRD引导件,并且上述线路和NRD引导件耦合。 确定该NRD波导的截止频率,使得来自振荡电路的振荡信号的基波分量被切断,从而传播高次谐波分量。
    • 5. 发明授权
    • Balanced acoustic wave filter and acoustic wave filter
    • 平衡声波滤波器和声波滤波器
    • US07283016B2
    • 2007-10-16
    • US11615130
    • 2006-12-22
    • Kazumasa HarutaKatsuhito Kuroda
    • Kazumasa HarutaKatsuhito Kuroda
    • H03H9/72H03H9/64
    • H03H9/14588H03H9/0071H03H9/0085H03H9/725
    • In an acoustic wave filter, first and second filter elements are connected between an unbalanced terminal and first and second balanced terminals on an acoustic wave substrate. The filter elements are longitudinally-coupled surface wave filters including at least three IDTs. One end of the IDTs is mutually connected and is connected to the unbalanced terminal. The other ends of the IDTs are connected by a second connecting line so as to define an unbalanced-side grounded portion. Grounded ends of the IDTs are connected to each other by a first connecting line so as to define a common midpoint grounded portion. The common midpoint grounded portion and the unbalanced-side grounded portion are electrically separated from each other.
    • 在声波滤波器中,第一和第二滤波器元件连接在不平衡端子与声波衬底上的第一和第二平衡端子之间。 滤波器元件是包括至少三个IDT的纵向耦合表面波滤波器。 IDT的一端相互连接并连接到不平衡终端。 IDT的另一端通过第二连接线连接,以限定不平衡侧的接地部分。 IDT的接地端部通过第一连接线彼此连接,以便限定公共的中点接地部分。 共同的中点接地部分和不平衡侧接地部分彼此电分离。
    • 6. 发明授权
    • Voltage controlled oscillator, voltage controlled oscillator device and radar device
    • 压控振荡器,压控振荡器和雷达装置
    • US06535072B2
    • 2003-03-18
    • US09907356
    • 2001-07-17
    • Sadao YamashitaKazumasa Haruta
    • Sadao YamashitaKazumasa Haruta
    • H03B1110
    • H03B5/1864G01S7/4017H03B9/14
    • A voltage controlled oscillator, a voltage controlled oscillator device, and a radar device provided therewith which can detect when the oscillation frequency becomes uncontrollable. According to one embodiment, a Gunn or other oscillation device is connected to a main line and a varactor diode which is a variable reactance element is connected between the main line and a sub line to constitute a voltage controlled oscillator. A control voltage is applied to the varactor diode via a switching circuit, and the presence or absence of oscillation or a failure of the varactor diode or oscillation device is detected by a detection signal, for example, from the varactor diode as monitored by a voltage monitor, and/or from the oscillation device, as monitored by a current sensing device.
    • 压控振荡器,压控振荡器装置和具有该控制振荡器装置的雷达装置,其可以检测何时振荡频率变得不可控制。 根据一个实施例,Gunn或其他振荡装置连接到主线,并且作为可变电抗元件的变容二极管连接在主线和子线之间以构成压控振荡器。 通过开关电路将控制电压施加到变容二极管,并且通过例如由电压监视的变容二极管的检测信号来检测变容二极管或振荡器件的振荡或故障的存在或不存在 监控和/或来自振荡装置,如由电流感测装置监视的。
    • 9. 发明授权
    • Acoustic wave filter device with branched ground wiring sandwiching the IDT area
    • 具有分支接地线的声波滤波器装置夹着IDT区域
    • US07944329B2
    • 2011-05-17
    • US12773110
    • 2010-05-04
    • Kazumasa Haruta
    • Kazumasa Haruta
    • H03H9/64
    • H03H9/0038H03H9/02913H03H9/02992H03H9/14594
    • An acoustic wave filter device has a balance-unbalance conversion function and has an increased out-of-band attenuation. The acoustic wave filter device includes a 5-IDT-type longitudinally coupled resonator-type acoustic wave filter unit including IDTs that are connected between an unbalanced terminal and first and second balanced terminals, and the IDTs and are connected to the first and second balanced terminals, respectively, that is arranged between the unbalanced terminal and the first and second balanced terminals. A second ground wiring that connects the end portions of the unbalanced-side IDT on the side connected to the ground potential to a ground terminal is separated from a first ground wiring. The second ground wiring includes first and second branched wiring portions, and the first and second branched wiring portions are arranged so as to sandwich an area in which the IDTs are provided.
    • 声波滤波器装置具有平衡不平衡转换功能,并且具有增加的带外衰减。 声波滤波器装置包括连接在不平衡端子和第一和第二平衡端子之间的IDT的5-IDT型纵向耦合谐振器型声波滤波器单元和IDT并连接到第一和第二平衡端子 分别设置在不平衡端子与第一和第二平衡端子之间。 将与接地电位连接的一侧的不平衡侧IDT的端部与接地端子连接的第二接地配线与第一接地配线分离。 第二接地布线包括第一和第二分支布线部分,并且第一和第二分支布线部分布置成夹着设置有IDT的区域。
    • 10. 发明授权
    • Oscillator, dielectric waveguide device, and transmitter
    • 振荡器,介质波导器件和发射器
    • US06369662B1
    • 2002-04-09
    • US09430650
    • 1999-10-29
    • Kazumasa HarutaSadao Yamashita
    • Kazumasa HarutaSadao Yamashita
    • H03B912
    • H03B5/04H03B5/1847H03L1/021
    • An oscillator, a dielectric waveguide device and a transmitter incorporating the same, wherein a special temperature-compensating circuit provides a temperature-compensated device with reduced size and cost, and greater productivity. In the oscillator, a dielectric plate having a strip line of a specified length is arranged between conductive plates which enclose a Gunn diode. The oscillation output signal of the Gunn diode is extracted via the strip line. In addition, the sign of the dielectric-constant temperature coefficient of the dielectric plate is set such that changes in the oscillation frequency caused by changes in temperature of the Gunn diode are suppressed.
    • 振荡器,介质波导器件和包含该振荡器的发射器,其中特殊的温度补偿电路提供具有减小尺寸和成本以及更高生产率的温度补偿器件。 在振荡器中,具有特定长度的带状线的电介质板被布置在包围耿氏二极管的导电板之间。 通过带状线提取耿氏二极管的振荡输出信号。 此外,电介质板的介电常数温度系数的符号被设定为使得由耿氏二极管的温度变化引起的振荡频率的变化被抑制。