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公开(公告)号：US4700194A
公开(公告)日：1987-10-13
申请号：US776960
申请日：1985-09-17
申请人： Koichi Ogawa , Tomoki Uwano , Hiroaki Kosugi , Junko Yamamoto
发明人： Koichi Ogawa , Tomoki Uwano , Hiroaki Kosugi , Junko Yamamoto
CPC分类号： H01Q9/0421
摘要： A small antenna comprising a dielectric substrate, a radiation element provided on one major surface of the dielectric substrate, a ground element provided on the other major surface of the dielectric substrate. A feed point on the ground element is located at a position where a voltage of a standing voltage wave induced on the ground element becomes minimum. The antenna may be further provided with a short-circuit element for electrically connecting one ends of the radiation and ground elements.
摘要翻译： 一种小型天线，包括电介质基片，设置在电介质基片的一个主表面上的辐射元件，设置在电介质基底的另一个主表面上的接地元件。 接地元件上的馈电点位于在接地元件上感应的驻波电压的电压变得最小的位置。 天线还可以设置有用于电连接辐射和接地元件的一端的短路元件。
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公开(公告)号：US5274388A
公开(公告)日：1993-12-28
申请号：US836431
申请日：1992-02-18
摘要： A small-sized antenna device is used for portable telephone equipment and is capable of preventing the receiving strength from being degraded due to a change in the application environment as well as the mounting thereof onto a small radio equipment case. The antenna device has a linear antenna for producing an electric current flux and a coil-shaped antenna for producing a magnetic current flux including a plurality of half-wavelength helical coils connected in series so as to have two adjacent coils coiled in opposite directions with respect to each other, and carries out polarization diversity. Degradation in the characteristics of both antennas due to differences in operational principle can be prevented from taking place simultaneously, resulting in realizing a good reception of a radiowave. In addition, the antenna axes of both antennas can be disposed in parallel and close to each other, thus miniaturizing the device itself.
摘要翻译： 小型天线装置用于便携式电话设备，并且能够防止由于应用环境的变化以及其安装到小型无线电设备情况而导致的接收强度劣化。 天线装置具有用于产生电流通量的线性天线和用于产生包括多个串联连接的多个半波长螺旋线圈的磁通量的线圈形天线，以便具有相对于 并进行极化分集。 可以防止由于操作原理的差异导致的两个天线的特性的降低同时发生，从而实现对无线电波的良好接收。 此外，两个天线的天线轴线可以彼此并联并且彼此靠近，从而使设备本身小型化。
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公开(公告)号：US5872487A
公开(公告)日：1999-02-16
申请号：US869546
申请日：1997-06-05
CPC分类号： H03L7/1976 , H03L7/107
摘要： A frequency synthesizer that can switch an output frequency fast and generates little spurious output is provided. This frequency synthesizer comprises a phase locked loop including a voltage-controlled oscillator, a high frequency divider, a phase frequency comparator and a low-pass filter. The divisor controller circuit supplies a divisor that varies cyclically to the high frequency divider for a fractional dividing operation. When switching the output frequency, a passing bandwidth of the low-pass filter is enlarged to widen a loop bandwidth of the phase locking loop for fast switching. After switching, the passing bandwidth of the low-pass filter is reduced to narrow the loop bandwidth for reduction of a spurious output, at the timing when a predetermined period has passed for the switched output frequency to stabilize substantially.
摘要翻译： 提供可以快速切换输出频率并产生很少杂散输出的频率合成器。 该频率合成器包括一个包括压控振荡器，高分频器，相位频率比较器和低通滤波器的锁相环。 除数控制器电路提供一个与高分频器周期性变化的除数进行分数除法运算。 当切换输出频率时，放大低通滤波器的通带宽度，以加宽锁相环的环路带宽，实现快速切换。 在切换之后，在经过预定周期以使开关输出频率基本上稳定的定时，低通滤波器的通过带宽被减小以减小环路带宽以减少杂散输出。
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公开(公告)号：US5694089A
公开(公告)日：1997-12-02
申请号：US600683
申请日：1996-02-13
申请人： Hisashi Adachi , Hiroaki Kosugi , Tomoki Uwano
发明人： Hisashi Adachi , Hiroaki Kosugi , Tomoki Uwano
CPC分类号： H03L7/107 , H03L7/1972 , H03L7/1976 , H03L7/0898
摘要： This is a PLL frequency synthesizer having a reference divider for dividing a reference source signal, and an RF divider for dividing the output of a voltage controlled oscillator, wherein when changing over the frequency, first the division value of the RF divider changes periodically to become a fractional division value in average, and after the frequency is nearly changed over, the RF divider is set in a conventional integer division operation, therefore, the frequency can be changed over at high speed by the fractional division operation high in reference frequency, and after the changing, a low spurious signal characteristic may be realized.
摘要翻译： 这是具有用于分割参考源信号的参考分频器和用于分压压控振荡器的输出的RF分频器的PLL频率合成器，其中当频率变化时，首先，RF分频器的分频值周期性地变化，变成 平均分数除数，在频率几乎改变之后，将RF分频器设置为常规的整数除法运算，因此可以通过参考频率高的分数运算来高速地切换频率，并且 在改变之后，可以实现低杂散信号特性。
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公开(公告)号：US5986522A
公开(公告)日：1999-11-16
申请号：US588769
申请日：1996-01-19
申请人： Yasuteru Asakawa , Toshio Ishizaki , Tomoki Uwano , Osamu Kawasaki , Yukihiko Ise , Toru Yamada , Hiroaki Kosugi
发明人： Yasuteru Asakawa , Toshio Ishizaki , Tomoki Uwano , Osamu Kawasaki , Yukihiko Ise , Toru Yamada , Hiroaki Kosugi
CPC分类号： H03H9/6483 , H03H3/04 , H03H9/02118 , H03H9/1014 , H03H9/1035 , H03H9/581 , H03H9/605 , Y10T29/42
摘要： A piezoelectric filter is one not changing in the holding position of resonator in spite of impulse, small in the number of parts, easy to assemble from one direction, small, thin, and stable in characteristic. For example, as shown in FIG. 7, on electrode patterns on a package 10 forming wiring electrode patterns 11, holding protrusions 13 for holding resonators, and partition boards 14 for positioning resonators, a rectangular plate type piezoelectric resonators 12 are adhered with conductive adhesive. The rectangular plate type piezoelectric resonators 12 and the package 10 are adhered and reinforced from above with a vibration absorbing member 15, and wiring is formed from above the resonators by a wire bonding 16, thereby wiring resonators in a ladder form. Or, as shown in FIG. 11, after forming electrode patterns 102 on a piezoelectric substrate 101, a rectangular plate resonator 104 is cut out from a piezoelectric substrate 101 by laser in a shape consecutive to the piezoelectric substrate 101 by the node of length expander mode, and the piezoelectric substrate 101 is enclosed by a spacer 106 and a sheet 107 from above and beneath.
摘要翻译： 压电滤波器是谐振器的保持位置不变的部分，部件数量少，易于从一个方向组装，小，薄，稳定的特性。 例如，如图1所示。 如图7所示，在形成布线电极图案11的保持用谐振器用保持突起13的封装体10上的电极图形和用于定位谐振器的分隔板14上，用导电性粘合剂粘合矩形板状压电谐振器12。 矩形板型压电谐振器12和封装10从上方用振动吸收构件15粘接和加强，并且通过引线接合16从谐振器的上方形成布线，从而以梯形形式布线谐振器。 或者，如图1所示。 如图11所示，在压电基板101上形成电极图案102之后，通过长度扩展器模式的节点以与压电基板101连续的形状的激光从压电基板101切出矩形板谐振器104，并且压电基板101 被隔板106和片材107从上方和下方包围。
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公开(公告)号：US5526003A
公开(公告)日：1996-06-11
申请号：US282917
申请日：1994-07-29
申请人： Koichi Ogawa , Tomoki Uwano , Masao Takahashi
发明人： Koichi Ogawa , Tomoki Uwano , Masao Takahashi
CPC分类号： H01Q1/38 , H01Q1/273 , H01Q9/0421
摘要： An antenna for mobile communication of this invention comprises a first metal plate having a slit, a second metal plate opposed to the first metal plate and electrically connected to the first metal plate, two metal foils connected to the second metal plate, and a cable for supplying feed signals to the first metal plate and the second metal plate, the cable including a first conductor connected to the first metal plate via a capacitor and a second conductor connected to the second metal plate.
摘要翻译： 本发明的移动通信用天线包括具有狭缝的第一金属板，与第一金属板相对并与第一金属板电连接的第二金属板，与第二金属板连接的两个金属箔，以及用于 向所述第一金属板和所述第二金属板供应馈送信号，所述电缆包括经由电容器连接到所述第一金属板的第一导体和连接到所述第二金属板的第二导体。
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公开(公告)号：US5539419A
公开(公告)日：1996-07-23
申请号：US539299
申请日：1995-10-04
申请人： Koichi Ogawa , Tomoki Uwano
发明人： Koichi Ogawa , Tomoki Uwano
摘要： An antenna for mobile communication includes a sleeve antenna having a feed point; at least one linear parasitic element insulated electrically form the sleeve antenna; and a supporting means for supporting the sleeve antenna and the linear parasitic element. The supporting means supports the sleeve antenna and the linear parasitic element so that the feed point of the sleeve antenna is located at a different elevation from an elevation of a central point of the linear parasitic element.
摘要翻译： 一种用于移动通信的天线包括具有馈电点的套管天线; 至少一个线性寄生元件，电气地形成套筒天线; 以及用于支撑套筒天线和线性寄生元件的支撑装置。 支撑装置支撑套管天线和线性寄生元件，使得套筒天线的馈电点位于与线性寄生元件的中心点的高度不同的高度上。
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公开(公告)号：US6072376A
公开(公告)日：2000-06-06
申请号：US912122
申请日：1997-08-15
申请人： Toshimitsu Matsuyoshi , Minoru Tachibana , Junichi Yoshizumi , Makoto Sakakura , Toshio Ishizaki , Tomoki Uwano , Toshiaki Nakamura
发明人： Toshimitsu Matsuyoshi , Minoru Tachibana , Junichi Yoshizumi , Makoto Sakakura , Toshio Ishizaki , Tomoki Uwano , Toshiaki Nakamura
CPC分类号： H01P1/2053 , H03F3/604 , H03F2200/372
摘要： A filter with a low-noise amplifier includes: two amplification circuits, a first 3-dB hybrid circuit which is connected to an input side of the amplification circuits, a second 3-dB hybrid circuit which is connected to an output side of the amplification circuits, and a filter which is connected to one input terminal of the first 3-dB hybrid circuit. The other input terminal of the first 3-dB hybrid circuit is subjected to matched termination. A signal is inputted to an input terminal of the filter and is outputted from one output terminal of the second 3-dB hybrid circuit and the other output terminal of the second 3-dB hybrid circuit is subjected to matched termination.
摘要翻译： 具有低噪声放大器的滤波器包括：两个放大电路，连接到放大电路的输入侧的第一个3-dB混合电路，连接到放大器的输出侧的第二个3-dB混合电路 电路和连接到第一3-dB混合电路的一个输入端的滤波器。 第一个3-dB混合电路的另一个输入端子进行匹配的端接。 信号被输入到滤波器的输入端，并从第二3-dB混合电路的一个输出端输出，第二个3-dB混合电路的另一个输出端经过匹配的终端。
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公开(公告)号：US5321374A
公开(公告)日：1994-06-14
申请号：US915925
申请日：1992-07-17
申请人： Tomoki Uwano
发明人： Tomoki Uwano
CPC分类号： H01P7/082 , H01P1/2053 , H01P7/04 , H01P7/084 , H03B5/1847 , H03B2200/004 , H03B2201/0208 , H03B5/1805
摘要： Disclosed is a TEM mode resonator having as a means for adjusting the resonance frequency a simple frequency adjusting mechanism appropriate for size reduction while permitting easy mounting of a varactor diode for varying the resonance frequency thereto. Below a strip transmission line 2 is provided a slot 7 having a length L perpendicular to the transmission line as located at an outer ground conductor surface 3 of a one-fourth wavelength type microstrip line resonator having its one end short-circuited. According as increasing the slot length L, the resonance frequency of the resonator reduces, which characteristic is utilized as a means for adjusting the resonance frequency. By connecting a varactor diode at a center portion of the slot line and varying the voltage applied to the diode, the resonance frequency can be varied.
摘要翻译： 公开了一种TEM模式谐振器，其作为用于调节谐振频率的装置，适合于减小尺寸的简单的频率调节机构，同时容易地安装用于改变谐振频率的变容二极管。 在带状传输线2的下方设置有狭缝7，槽7具有垂直于传输线的长度L，位于其一端短路的四分之一波长型微带线谐振器的外部接地导体表面3处。 根据增加槽长度L，谐振器的谐振频率减小，该特性被用作调整谐振频率的手段。 通过在槽线的中心部分连接变容二极管并改变施加到二极管的电压，可以改变谐振频率。
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公开(公告)号：US4656441A
公开(公告)日：1987-04-07
申请号：US636665
申请日：1984-08-01
CPC分类号： H01P5/085
摘要： A coaxial line-to-microstrip line transition device including a coaxial line, a microstrip line circuit, and a conductive connection part. The inner conductor of the coaxial line is connected with a microstrip line of the microstrip line circuit. The connection part includes a semi-cylindrical plate which is connected with the outer conductor of the coaxial line by grasping it, and a flat plate which is connected at a surface thereof with a earth layer surface of the microstrip line circuit. The microstrip line is mounted on one surface of a dielectric substrate, and the earth layer is mounted on the other surface of the dielectric substrate. The dielectric substrate is mounted on a chassis which is either provided separately or shared by the flat plate of the connection part which is extended in size. Preferably, a through-hole is provided at least one of the semi-cylindrical plate and the flat plate to be filled with a conductive material.
摘要翻译： 包括同轴线，微带线电路和导电连接部件的同轴线对微带线路转换装置。 同轴线的内导体与微带线电路的微带线连接。 连接部包括通过把持其与同轴线的外导体连接的半圆柱形板，以及在其表面与微带线电路的接地层表面连接的平板。 微带线安装在电介质基板的一个表面上，并且接地层安装在电介质基板的另一个表面上。 电介质基板安装在单独设置的或由连接部分的平板共同扩大尺寸的底架上。 优选地，半导体板和平板中的至少一个设置有用于填充导电材料的通孔。
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