公开(公告)号：US06639556B2

公开(公告)日：2003-10-28

申请号：US09972357

申请日：2001-10-05

Applicant: Toshiki Baba

Inventor： Toshiki Baba

IPC: H01Q1326

CPC classification number: H01Q9/0442 ,  H01Q9/0407 ,  H01Q19/021 ,  H01Q19/10

Abstract: A plane patch antenna has a dielectric substrate formed by calcining ceramic powder press-molded in a desired shape. On one surface of the dielectric substrate, a concave groove is continuously formed along the inside of its outer edge, and on an entire surface within a region partitioned by this concave groove, a patch electrode is thick-film printed.

Abstract translation: 平面贴片天线具有通过煅烧以所需形状加压成型的陶瓷粉末而形成的电介质基板。 在电介质基板的一个表面上，沿其外边缘的内部连续地形成凹槽，并且在由该凹槽分隔的区域的整个表面上，贴片电极是厚膜印刷的。

公开(公告)号：US06294961B1

公开(公告)日：2001-09-25

申请号：US09593514

申请日：2000-06-14

Applicant: Toshiki Baba

Inventor： Toshiki Baba

IPC: H03B512

CPC classification number: H03B5/1231 ,  H03B5/1203 ,  H03B5/1243 ,  H03B5/1262

Abstract: A selectable oscillation circuit includes a first oscillation circuit, a second oscillation circuit, and a selector circuit. The selector circuit selectively switches on and off the first oscillation circuit and the second oscillation circuit, in accordance with the provision of a selector signal, to selectively switch between two communicating modes, with low-power consumption.

Abstract translation: 可选振荡电路包括第一振荡电路，第二振荡电路和选择器电路。 选择器电路根据提供选择器信号选择性地接通和关断第一振荡电路和第二振荡电路，以便在低功耗的情况下有选择地在两种通信模式之间切换。

公开(公告)号：US06901250B2

公开(公告)日：2005-05-31

申请号：US10235774

申请日：2002-09-05

Applicant: Toshiki Baba

Inventor： Toshiki Baba

IPC: H04B1/40 ,  H01P1/15 ,  H04B1/48 ,  H04B1/00

CPC classification number: H04B1/48 ,  H01P1/15

Abstract: In a mounting structure of an antenna switching circuit, a first switching diode is connected between a first conductor pattern and a second conductor pattern, an inductor is connected between the first conductor pattern and a third conductor pattern, a first capacitor is connected between the third conductor pattern and a fourth conductor pattern, and a second switching diode is implemented by a bare chip. The bare chip is mounted on the fourth conductor pattern, a cathode thereof being connected to the fourth conductor pattern and an anode thereof being connected to the third conductor pattern via a bonding wire.

Abstract translation: 在天线切换电路的安装结构中，第一开关二极管连接在第一导体图案和第二导体图案之间，电感器连接在第一导体图案和第三导体图案之间，第一电容器连接在第三导体图案之间， 导体图案和第四导体图案，并且第二开关二极管由裸芯片实现。 裸芯片安装在第四导体图案上，其阴极连接到第四导体图案，其阳极通过接合线连接到第三导体图案。

公开(公告)号：US06380813B1

公开(公告)日：2002-04-30

申请号：US09613893

申请日：2000-07-11

Applicant: Hiroki Noumi ,  Toshiki Baba

Inventor： Hiroki Noumi ,  Toshiki Baba

IPC: H03B2700

CPC classification number: H03J5/24

Abstract: The frequency-characteristic switchable buffer circuit includes an amplifying stage, a parallel resonance circuit which serves as an output load of the amplifying stage, a frequency trap circuit electrically connected between the input of the amplifying stage and a reference potential point, and a frequency switching voltage generator for selectively generating a first switching voltage or a second switching voltage. The parallel resonance circuit parallel-resonates at a first frequency when the first switching voltage is supplied thereto. When the second switching voltage is supplied thereto, the parallel resonance circuit parallel-resonates at a second frequency. The frequency trap circuit comprises a series circuit made up of a diode and a capacitor. When the first switching voltage is supplied to the frequency trap circuit, the frequency trap circuit series-resonates at a frequency lower than the first frequency. When the second switching voltage is supplied thereto, it series-resonates at any of frequencies lying within a 1700 MHz band, which is higher than the second frequency.

Abstract translation: 频率特性可切换缓冲电路包括放大级，用作放大级的输出负载的并联谐振电路，电连接在放大级的输入与参考电位之间的频率陷波电路和频率切换 电压发生器，用于选择性地产生第一开关电压或第二开关电压。 当提供第一开关电压时，并联谐振电路以第一频率并联谐振。 当提供第二开关电压时，并联谐振电路以第二频率并联谐振。 频率陷波电路包括由二极管和电容器组成的串联电路。 当第一开关电压被提供给陷波电路时，陷波电路以低于第一频率的频率串联谐振。 当提供第二开关电压时，它在高于第二频率的1700MHz频带内的任何频率上串联谐振。

公开(公告)号：US4882550A

公开(公告)日：1989-11-21

申请号：US307439

申请日：1989-02-07

Applicant: Toshiki Baba

Inventor： Toshiki Baba

IPC: H03B1/00 ,  H03B5/18 ,  H04B1/38 ,  H04B1/40 ,  H05K1/02 ,  H05K3/30

CPC classification number: H04B1/40 ,  H03B5/18 ,  H05K1/0243 ,  H05K2201/10068 ,  H05K2201/10166 ,  H05K2201/10371 ,  H05K2201/10545 ,  H05K3/301

Abstract: A connecting structure for connecting two oscillator circuits to an amplifier. The oscillator circuits are provided on one surface of a printed circuit board and include two dielectric resonators. The amplifier circuit is provided on the other surface of the printed circuit board for selectively amplifying oscillatory outputs from the oscillator circuits. The dielectric resonators are fixed to a metal plate mounted on the printed circuit board, and the amplifier circuit is located at a position opposite to the metal plate.

Abstract translation: 用于将两个振荡电路连接到放大器的连接结构。 振荡器电路设置在印刷电路板的一个表面上并且包括两个介质谐振器。 放大电路设置在印刷电路板的另一表面上，用于选择性地放大来自振荡电路的振荡输出。 介质谐振器固定在安装在印刷电路板上的金属板上，放大电路位于与金属板相对的位置。

公开(公告)号：US4721927A

公开(公告)日：1988-01-26

申请号：US10805

申请日：1987-02-04

Applicant: Toshio Aota ,  Toshiki Baba

Inventor： Toshio Aota ,  Toshiki Baba

IPC: H03C3/09 ,  H03B1/00 ,  H03B5/12 ,  H03B5/18 ,  H03C3/22

CPC classification number: H03C3/222 ,  H03B5/1847 ,  H03B2200/004 ,  H03B2200/0092 ,  H03B2201/0208

Abstract: A voltage-controlled-oscillator with a modulator, comprising a first variable capacitance diode and a second variable capacitance diode. The first variable capacitance diode is connected in series with the second variable capacitance diode to form a resonance device, wherein capacitance of the first variable capacitance diode is controlled by applying a reverse bias voltage and an oscillation frequency control voltage to both ends of the first variable capacitance diode, and capacitance of the second variable capacitance diode is controlled in a reverse direction to changes in the capacitance of the first variable capacitance diode with respect to the oscillation frequency control voltage by applying the oscillation frequency control voltage and a modulation signal to both ends of the second variable capacitance diode to thereby provide a frequency modulated wave.

Abstract translation: 一种具有调制器的压控振荡器，包括第一可变电容二极管和第二可变电容二极管。 第一可变电容二极管与第二可变电容二极管串联连接以形成谐振装置，其中通过向第一变量的两端施加反向偏置电压和振荡频率控制电压来控制第一可变电容二极管的电容 电容二极管和第二可变电容二极管的电容通过将振荡频率控制电压和调制信号施加到两端而相对于第一可变电容二极管的电容相对于振荡频率控制电压的变化而反向控制 的第二可变电容二极管，从而提供频率调制波。