公开(公告)号：US06178319B1

公开(公告)日：2001-01-23

申请号：US09159795

申请日：1998-09-24

申请人： Yukiro Kashima

发明人： Yukiro Kashima

IPC分类号： H04B126

CPC分类号： H03D9/0683

摘要： A microwave mixing circuitry has a plurality of microwave signal input terminals, a local oscillator for outputting a local oscillation signal for the purpose of generating an intermediate frequency signal from the microwave signal input by the microwave signal input terminals, and a plurality of field effect transistors (“FET”) for frequency converting. The FET gates are input with the microwave signal input from microwave signal input terminals. The FET drains are input with an output of the local oscillator. A plurality of gate voltage control circuitries control gate voltages of the FETs thereby causing one of the FETs to perform nonlinear operation while turning off another of FETs at the same time. An intermediate frequency signal output terminal outputs the intermediate frequency signal produced by the nonlinear operation of one of the FETs.

摘要翻译： 微波混合电路具有多个微波信号输入端子，本地振荡器用于输出本地振荡信号，以便从由微波信号输入端子输入的微波信号产生中频信号，以及多个场效应晶体管 （“FET”）进行频率转换。 输入微波信号输入端的微波信号输入FET栅极。 FET漏极输入本地振荡器的输出。 多个栅极电压控制电路控制FET的栅极电压，从而使FET中的一个FET同时执行非线性操作，同时关闭另一个FET。 中频信号输出端子输出由一个FET的非线性运算产生的中频信号。

公开(公告)号：US5794133A

公开(公告)日：1998-08-11

申请号：US700996

申请日：1996-08-21

申请人： Yukiro Kashima

发明人： Yukiro Kashima

IPC分类号： H01P1/10 ,  H01P1/15 ,  H01P5/08 ,  H03D7/12 ,  H03D9/06 ,  H04B1/26 ,  H04B1/28

CPC分类号： H03D9/0675 ,  H03B2200/0048 ,  H03D2200/0005 ,  H03D7/125

摘要： A switchable microwave signal mixing circuit is disclosed which comprises: an osc 3 for generating an osc signal; 1st and 2nd microstrip lines 6, 7, coupled to the oscillator, for receiving 1st and 2nd microwave signals and the osc signal respectively; a bias voltage control circuit 54 for alternatively generating 1st and 2nd control bias voltages; 1st and 2nd FETs 8, 9, having 1st and 2nd gates supplied with the 1st and 2nd control bias voltages and coupled to the 1st and 2nd microstrip lines, drains supplied with bias voltages, and sources respectively, for alternatively generating 1st and 2nd IF signals from the 1st and 2nd microwave signals and the osc signal from the 1st and 2nd microstrip lines according to the control bias voltages; and an IF signal outputting circuit 14-18, 21 for outputting one of the IF signals selectively generated. In addition, a Wilkinson's divider 14-16 may be provided between the 1st and 2nd FETs and the outputting circuit for providing an isolation between the 1st and 2nd FETs. In addition, 1st and 2nd probing circuits 24, 25 coupled to the 1st and 2nd microstrip lines, for converting the 1st and 2nd microwaves into the 1st and 2nd microwave signals including 1st and 2nd TEM waves may be provided.

摘要翻译： 公开了一种可切换的微波信号混合电路，包括：用于产生振荡信号的振荡器3; 耦合到振荡器的第一和第二微带线6,7，分别用于接收第一和第二微波信号和振荡信号; 用于交替地产生第一和第二控制偏置电压的偏置电压控制电路54; 第一和第二FET 8,9具有第一和第二栅极，其具有第一和第二控制偏置电压，并且分别耦合到第一和第二微带线，分别提供有偏置电压的源极和源，以产生第一和第二IF信号 根据控制偏置电压从第一和第二微波信号和来自第一和第二微带线的振荡信号; 以及用于输出选择性地生成的一个IF信号的IF信号输出电路14-18,21。 另外，可以在第一和第二FET和输出电路之间提供Wilkinson的分压器14-16，以提供第一和第二FET之间的隔离。 此外，可以提供耦合到第一和第二微带线的用于将第一和第二微波转换成包括第一和第二TEM波的第一和第二微波信号的第一和第二探测电路24,25。

公开(公告)号：US06987960B2

公开(公告)日：2006-01-17

申请号：US09829483

申请日：2001-04-10

申请人： Yukiro Kashima

发明人： Yukiro Kashima

IPC分类号： H04B1/26

CPC分类号： H03B5/187 ,  H03B5/1864

摘要： A microwave oscillator for inducing parallel feedback from collector to base and obtaining a stabilized oscillation output is realized by connecting MSL A with released end to a base terminal of a transistor, connecting MSL B to its collector terminal, and disposing a DR closely to the MSL A and B to couple them electromagnetically. The length between the released end and the position of MSL A which is closest to the center of DR is set to λg1/4 (λg1 is the guide wavelength in the MSL A), and HIL is merely connected to this position as a bias supply line to the base terminal. This structure does not require the choke circuits which occupied a relatively wide area on the conventional circuit board, and a small and stable microwave oscillator having excellent phase noise characteristics, and a low-noise converter for receiving satellite signal by using the same are realized.

摘要翻译： 通过将MSL A与释放端连接到晶体管的基极端子，将MSL B连接到其集电极端子，并将DR紧密配置到MSL，实现了从集电极到基极并联获得稳定的振荡输出的微波振荡器 A和B将它们电磁耦合。 最接近DR中心的MSL A的释放端和位置之间的长度设置为lambdag1 / 4（lambdag1是MSL A中的引导波长），HIL仅作为偏置电源连接到该位置 线到基站。 这种结构不需要在常规电路板上占据较宽区域的扼流圈，并且实现了具有优异的相位噪声特性的小型稳定的微波振荡器和用于通过使用它们接收卫星信号的低噪声转换器。

公开(公告)号：US20060009263A1

公开(公告)日：2006-01-12

申请号：US10529878

申请日：2003-09-29

申请人： Yukiro Kashima ,  Katsuhiko Tokuda

发明人： Yukiro Kashima ,  Katsuhiko Tokuda

IPC分类号： H04M1/00

CPC分类号： H01Q1/243 ,  G06F1/1632 ,  H01Q1/22 ,  H01Q1/2266 ,  H01Q1/2275 ,  H01Q21/29

摘要： A terminal equipment is used by mounting thereon a wireless module including a communication device having a transmission and reception antenna for connection to a wireless network and includes a first antenna unit which is connected to the transmission and reception antenna physically or spatially and a second antenna unit which is connected to the first antenna unit and transmits and receives radio signals directly to and from the wireless network such that not only communication quality is upgraded but a radio signal reach distance between the terminal equipment and the wireless network is extended.

摘要翻译： 终端设备用于安装无线模块，该无线模块包括具有用于连接无线网络的发送和接收天线的通信设备，并且包括物理或空间连接到发射和接收天线的第一天线单元和第二天线单元 其连接到第一天线单元，并且直接从无线网络发送和接收无线电信号，使得不仅升级通信质量，而且延长终端设备和无线网络之间的无线电信号到达距离。

公开(公告)号：US5754951A

公开(公告)日：1998-05-19

申请号：US520487

申请日：1995-08-29

申请人： Yukiro Kashima ,  Akira Kinoshita

发明人： Yukiro Kashima ,  Akira Kinoshita

IPC分类号： H03D9/06 ,  H04B1/26

CPC分类号： H03D9/0608 ,  H03D2200/0005 ,  H03D2200/0076

摘要： A microwave mixing circuit of a small size for selecting a signal to be received out of plural microwave signal inputs, and converting it to an intermediate frequency signal, and a down converter comprising it are provided. A microwave input signal within a band of 12 GHz applied to one microwave signal input unit is guided through a bias terminal from a comparator into a mixer diode to which a bias current is supplied, and is converted in frequency by the mixer diode. A microwave input signal applied to other microwave signal input unit is guided through the bias terminal from the comparator into a mixer diode to which bias current is not supplied, and is hence not converted in frequency by the mixer diode. As a result, only an intermediate frequency signal of 1 GHz band corresponding to the former microwave signal appears at the intermediate frequency signal output terminal.

摘要翻译： 提供一种小尺寸的微波混合电路，用于选择从多个微波信号输入中接收的信号，并将其转换为中频信号，以及包括该微波混合电路的降频转换器。 施加到一个微波信号输入单元的12GHz频带内的微波输入信号通过偏置端从比较器引导到供给偏置电流的混频二极管中，并通过混频二极管转换频率。 施加到其他微波信号输入单元的微波输入信号通过偏置端子从比较器引导到未被供给偏置电流的混频二极管，因此不被混频二极管转换。 结果，只有与前一个微波信号对应的1GHz频带的中频信号出现在中频信号输出端。

公开(公告)号：US5204984A

公开(公告)日：1993-04-20

申请号：US788101

申请日：1991-11-05

申请人： Hirotaka Fujisaki ,  Yukiro Kashima ,  Akihito Deki

发明人： Hirotaka Fujisaki ,  Yukiro Kashima ,  Akihito Deki

IPC分类号： H03J7/04 ,  H04B1/18 ,  H04B1/26

CPC分类号： H04B1/26 ,  H03J7/04

摘要： A down converter device is disclosed which is used in a satellite communication system to convert a microwave signal to an intermediate frequency signal by the use of a standard signal having a frequency range of several to several tens of MHz, and to apply the intermediate frequency signal to a next stage component. The down converter includes a mixer for producing the intermediate frequency signal indicative of a frequency difference between the standard signal and the microwave signal. A separator is provided which includes a first terminal for receiving the intermediate frequency signal, a second terminal for producing and supplying the intermediate frequency signal to the next stage component and for receiving the standard signal from the next stage component, a first filter for separating the standard signal, and a third terminal for producing the standard signal to the mixing means.

摘要翻译： 公开了一种下变频器装置，其用于卫星通信系统中，通过使用频率范围为几至几十MHz的标准信号将微波信号转换成中频信号，并施加中频信号 到下一个阶段的组件。 下变频器包括用于产生指示标准信号和微波信号之间的频率差的中频信号的混频器。 提供了一种分离器，其包括用于接收中频信号的第一端子，用于产生和提供中频信号到下一级分量并用于从下一级分量接收标准信号的第二端子，用于分离第 标准信号，以及用于向混合装置产生标准信号的第三端子。

公开(公告)号：US20090096936A1

公开(公告)日：2009-04-16

申请号：US12298112

申请日：2007-04-16

申请人： Masahiro Hamada ,  Yukiro Kashima

发明人： Masahiro Hamada ,  Yukiro Kashima

IPC分类号： H04N5/50

CPC分类号： H04B1/28 ,  H04B1/3805 ,  H04B1/403

摘要： A receiving device is used that includes a main tuner 11, a sub-tuner 12, and a control unit 13 is used. The main tuner 11 and the sub-tune 12 have local oscillators 25, 45, respectively, for generating local oscillation signals according to frequencies of selected channels, and extract signals on the selected channels by using the local oscillation signals. The control unit 13 judges whether the frequency of the channel selected by the main tuner 11 is identical to the frequency of the channel selected by the sub-tuner 12. When it is judged that they are identical, the control unit 13 stops the generation of the local oscillation signal by the local oscillator 45 of the sub-tuner 12 and causes the sub-tuner 12 to extract the signal on the selected channel by using the local oscillation signal generated by the local oscillator 25 of the main tuner.

摘要翻译： 使用包括主调谐器11，子调谐器12和控制单元13的接收装置。 主调谐器11和子调子12分别具有本地振荡器25,45，用于根据所选频道的频率产生本地振荡信号，并通过使用本地振荡信号在所选频道上提取信号。 控制单元13判断由主调谐器11选择的频道的频率是否与由子调谐器12选择的频道的频率相同。当判断为相同时，控制单元13停止生成 由副调谐器12的本地振荡器45产生的本地振荡信号，并且使副调谐器12通过使用由主调谐器的本地振荡器25产生的本地振荡信号来提取所选频道上的信号。

公开(公告)号：US6069528A

公开(公告)日：2000-05-30

申请号：US127302

申请日：1998-07-31

申请人： Yukiro Kashima

发明人： Yukiro Kashima

IPC分类号： H03G3/30 ,  H03F3/60 ,  H03G3/20

CPC分类号： H03G3/3042

摘要： An automatic microwave gain control device comprises a signal amplifier, a directional coupler coupled to one terminal of the signal amplifier for receiving a portion of an amplified microwave signal power, a microwave detection diode connected to one end of the directional coupler, a bias supply circuitry supplying an adjustable D.C. bias voltage to the microwave detection diode, a D.C. amplifier for amplifying a voltage derived from an addition of a microwave detection output voltage of the microwave detection diode and the bias voltage of the bias supply circuitry, and a variable attenuator provided at another side of the terminals of the signal amplifier, wherein the variable attenuator controls an output power outputted from an output terminal to be constant power by way of controlling a magnitude of attenuation of the signal at the another terminal of the signal amplifier according to an output voltage of the D.C. amplifier. This is done so as not to be affected by dispersion of characteristic and dispersion of mounting position of the microwave detection diode.

摘要翻译： 自动微波增益控制装置包括信号放大器，耦合到信号放大器的一个端子的定向耦合器，用于接收放大的微波信号功率的一部分;连接到定向耦合器的一端的微波检测二极管，偏置电路 向微波检测二极管提供可调节的直流偏置电压; DC放大器，用于放大从微波检测二极管的微波检测输出电压和偏置电源电路的偏置电位的相加导出的电压;以及可变衰减器， 信号放大器的端子的另一侧，其中可变衰减器通过根据输出端控制信号放大器的另一端的信号的衰减幅度来控制从输出端输出的输出功率为恒定功率 直流放大器的电压。 这样做不会受到微波检测二极管的安装位置的特性和色散的分散的影响。

公开(公告)号：US5422611A

公开(公告)日：1995-06-06

申请号：US155654

申请日：1993-11-22

申请人： Yukiro Kashima ,  Akira Kinoshita ,  Yoshikazu Yoshimura

发明人： Yukiro Kashima ,  Akira Kinoshita ,  Yoshikazu Yoshimura

IPC分类号： H01P1/161 ,  H01P5/107 ,  H01P5/12

CPC分类号： H01P5/107 ,  H01P1/161

摘要： A waveguide-microstripline transformer comprises a waveguide which is closed at one end and has a slit at a side wall thereof, a dielectric substrate plate placed on the slit, a microstripline placed on the dielectric substrate plate, and a shield case covering the dielectric substrate plate, whereby less blocking of the incident electromagnetic wave is attained.

摘要翻译： 波导 - 微带线变压器包括在一端封闭并且在其侧壁处具有狭缝的波导，放置在狭缝上的电介质基板，放置在电介质基板上的微带线和覆盖电介质基板的屏蔽壳 从而获得较少的入射电磁波的阻挡。

公开(公告)号：US5280253A

公开(公告)日：1994-01-18

申请号：US849070

申请日：1992-04-23

申请人： Akihito Deki ,  Yukiro Kashima ,  Kazuyoshi Nishioka ,  Shozo Aono ,  Akira Kinoshita ,  Yasufumi Siomi

发明人： Akihito Deki ,  Yukiro Kashima ,  Kazuyoshi Nishioka ,  Shozo Aono ,  Akira Kinoshita ,  Yasufumi Siomi

IPC分类号： H01P5/107

CPC分类号： H01P5/107

摘要： A microwave circuit includes a concentric-circle-like prominence (7) formed on a contact surface which is on the side of a metal body (3) serving as an external conductor of a coaxial line and which connects a conductor strip (1) of an MSL formed on a dielectric substrate (2) to an internal conductor of the coaxial line through a through-hole (9) extending from a ground plane (11) of the MSL through the dielectric substrate (2). The construction involves no mismatched portion and can prevent a loss and deterioration in VSWR in the coaxial-line/MSL conversion section, thereby making it possible to obtain satisfactory characteristics.

摘要翻译： PCT No.PCT / JP91 / 01157 Sec。 371日期：1992年4月23日 102（e）日期1992年4月23日PCT 1991年8月30日PCT PCT。 出版物WO92 / 04744 日期：1992年3月19日。微波电路包括形成在接触表面上的同心圆状凸起（7），该接触表面位于用作同轴线的外部导体的金属体（3）侧，并且连接 通过从MSL的接地平面（11）延伸穿过电介质基片（2）的通孔（9），形成在电介质基底（2）上的MSL的导体条（1）到同轴线的内部导体 ）。 该构造不包括不匹配部分，并且可以防止同轴/ MSL转换部中的VSWR的损耗和劣化，从而可以获得令人满意的特性。