专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2015056793A 方向性結合器审中-公开
标题翻译：方向耦合器
公开(公告)号：JP2015056793A
公开(公告)日：2015-03-23
申请号：JP2013189460
申请日：2013-09-12
申请人：三菱電機株式会社 , Mitsubishi Electric Corp
发明人： HIROTA AKEMICHI , YOSHIOKA HIDEHIRO , OWADA SATORU , IYOMASA KAZUHIRO , YAMAMOTO KAZUYA
IPC分类号： H01P5/18
摘要：【課題】偶モード動作時での通過位相と、奇モード動作時での通過位相との位相差をなくして、方向性が良好な方向性結合器を得る。【解決手段】第1の主信号線路11と第1の副信号線路13が電磁的に結合されることで形成されている結合線路の結合線路インピーダンスZ1cが、第2の主信号線路12と第2の副信号線路14が電磁的に結合されることで形成されている結合線路の結合線路インピーダンスZ2cよりも低くなるように構成する。これにより、偶モード動作時での通過位相と、奇モード動作時での通過位相との位相差をなくすことができる。【選択図】図1
摘要翻译：要解决的问题：提供一种定向耦合器，其具有优异的方向性，通过消除在偶模式下操作期间的通过相位与在奇数模式下操作期间的通过相位之间的相位差。解决方案：定向耦合器被配置为使得通过电磁耦合第一主信号线11和第一子信号线13形成的耦合线的耦合线路阻抗Z1低于通过电磁耦合第二主信号线12和第二子信号线13而形成的耦合线的耦合线阻抗Z2 这允许在奇数模式下操作期间，在均匀模式下操作期间的通过相位与通过相位之间消除相位差。

2. 发明专利

JP2014165823A Directional coupler 审中-公开
标题翻译：方向耦合器
公开(公告)号：JP2014165823A
公开(公告)日：2014-09-08
申请号：JP2013037229
申请日：2013-02-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： HIROTA AKEMICHI , OWADA SATORU , IYOMASA KAZUHIRO , WATANABE SHINSUKE , YAMAMOTO KAZUYA
IPC分类号： H01P5/18
摘要： PROBLEM TO BE SOLVED: To obtain a directional coupler in which, even in the case where a coupling line impedance is made lower than a terminal impedance by restrictions in manufacture, the directivity is good.SOLUTION: A directional coupler has deletion parts 1106 provided in a ground conductor 1105 and arranged to be symmetrical to symmetry planes of a first signal conductor 1001 and a second signal conductor 1002, in a discontinuous structure having a function for delaying a phase and being smaller than a 1/4 wavelength of an operation frequency. Therefore, even in the case where a coupling line impedance is lower than a terminal impedance, in an even mode operation, the directional coupler is influenced by the deletion parts 1106 and the phase is delayed rather than the case where there is no deletion part 1106. In an odd mode operation, however, since the symmetry planes of the first signal conductor 1001 and the second signal conductor 1002 become electric walls, the directional coupler is not influenced by the deletion parts 1106 and a passing phase is not changed. Thus, a passing phase in the even mode operation and a passing phase in the odd mode operation can be matched, such that a directivity can be improved.
摘要翻译：要解决的问题：为了获得定向耦合器，其中即使在通过制造中的限制使耦合线路阻抗低于端子阻抗的情况下，方向性也良好。解决方案：定向耦合器具有设置在接地导体1105并且布置成与第一信号导体1001和第二信号导体1002的对称平面对称，具有延迟相位并且小于工作频率的1/4波长的功能的不连续结构。因此，即使在耦合线路阻抗低于端子阻抗的情况下，在偶模式操作中，定向耦合器受到删除部分1106的影响，并且相位被延迟，而不是没有删除部分1106的情况然而，在奇数模式操作中，由于第一信号导体1001和第二信号导体1002的对称面成为电壁，所以定向耦合器不受删除部分1106的影响，并且通过相位不变。因此，可以匹配偶模式操作中的通过相位和奇数模式操作中的通过相位，从而可以提高方向性。

3. 发明专利

JP2011166199A Detection circuit and semiconductor device using the same 有权
标题翻译：检测电路和使用该检测电路的半导体器件
公开(公告)号：JP2011166199A
公开(公告)日：2011-08-25
申请号：JP2010023029
申请日：2010-02-04
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAMOTO KAZUYA , ASADA TOMOYUKI , MIYASHITA MIYO
IPC分类号： H04B1/04 , H03F1/32 , H03F3/24 , H03K17/00
CPC分类号： G01R31/2822 , G01R23/20 , H03F3/24 , H04B1/0475 , H04B17/103
摘要： PROBLEM TO BE SOLVED: To provide a detection circuit that can easily suppress deterioration in distortion characteristics at low cost, and to provide a semiconductor device using the detection circuit. SOLUTION: The detection circuit, which detects the deterioration in distortion characteristics of a power amplifier using signals at both ends of a coupling line of a directional coupler arranged between the power amplifier and an antenna, includes: a phase shifter attenuator which phase-shifts and attenuates electric power at a coupling terminal of the coupling line; a means for outputting a difference between output electric power from the phase shifter attenuator and electric power of an isolation terminal of the coupling line; a detection circuit which converts the difference into a DC signal; and a comparison circuit which determines whether the voltage level of the DC signal is larger than a predetermined value. Then, the phase shifter attenuator phase-shifts the electric power at the coupling terminal so that the phase of the signal outputted by the phase shifter attenuator is 180° in a phase difference from the phase of the signal at the isolation terminal, in a loaded state of an antenna end in which the distortion characteristics of the power amplifier deteriorate. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供能够容易地以低成本抑制失真特性的劣化的检测电路，并提供使用该检测电路的半导体器件。解决方案：使用布置在功率放大器和天线之间的定向耦合器的耦合线的两端的信号来检测功率放大器的失真特性的劣化的检测电路包括：相移器衰减器，其相位在耦合线的耦合端子处交换和衰减电力; 用于输出来自所述移相器衰减器的输出电力与所述耦合线的隔离端子的电力之间的差的装置; 检测电路，将差分转换为DC信号; 以及比较电路，其确定DC信号的电压电平是否大于预定值。然后，移相器衰减器对耦合端子的电力进行相移，使得由移相器衰减器输出的信号的相位与隔离端子的信号的相位相差180°，其中功率放大器的失真特性恶化的天线端的状态。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2011061440A Directional coupler 有权
标题翻译：方向耦合器
公开(公告)号：JP2011061440A
公开(公告)日：2011-03-24
申请号：JP2009208274
申请日：2009-09-09
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAMOTO KAZUYA , MIYASHITA MIYO , KURUSU HITOSHI , ASADA TOMOYUKI
IPC分类号： H01P5/18
CPC分类号： H01P5/184 , H01P5/18
摘要： PROBLEM TO BE SOLVED: To provide a directional coupler which improves reflection loss of coupled lines. SOLUTION: The directional coupler 101 has capacitance elements Cp1 and Cp2, and they are electrically connected to a connection port 18 and an isolation port 22 of a coupled line 20 on a chip (on-chip) respectively. The capacitance elements Cp1 and Cp2 are provided as matching capacitance elements, but they may also be MIM capacitors (Metal Insulator Metal Capacitors) created on a board 2. One end of the capacitance element Cp1 is connected between the connection port 18 and the coupled line 20, and the other end thereof is grounded. On the other hand, one end of the capacitance element Cp2 is connected between the isolation port 22 and the coupled line 20, and the other end thereof is grounded. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种改善耦合线路的反射损耗的定向耦合器。解决方案：定向耦合器101具有电容元件Cp1和Cp2，它们分别电连接到芯片上的耦合线路20的连接端口18和隔离端口22。电容元件Cp1和Cp2作为匹配电容元件提供，但它们也可以是在电路板2上形成的MIM电容器（金属绝缘体金属电容器）。电容元件Cp1的一端连接在连接端口18和耦合线 20，其另一端接地。另一方面，电容元件Cp2的一端连接在隔离端口22和耦合线20之间，另一端接地。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2008252710A Voltage-controlled oscillator 有权
标题翻译：电压控制振荡器
公开(公告)号：JP2008252710A
公开(公告)日：2008-10-16
申请号：JP2007093698
申请日：2007-03-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MATSUZUKA TAKAYUKI , YAMAMOTO KAZUYA
IPC分类号： H03B5/04
CPC分类号： H03L1/023 , H03B5/04 , H03B5/1203 , H03B5/1231 , H03B5/124
摘要： PROBLEM TO BE SOLVED: To obtain a voltage-controlled oscillator capable of performing temperature compensation over a wide range of oscillating frequency.
SOLUTION: The voltage-controlled oscillator controls an oscillating frequency by the voltage applied to both ends of a variable capacitive element 17. The oscillator has a frequency-controlled bias circuit 21 to apply the voltage for frequency control, according to the controlling voltage to one end of the variable capacitive element 17; a first current supply 25 for generating the first current, according to the controlling voltage, a second current supply 26 to generate the second current according to the temperature and independent of the control voltage; a conversion resistor 27 for converting the first and second currents to the voltage; and a temperature-compensating bias circuit 23 for applying the temperature-compensating voltage, according to the converted voltage by the conversion resistor 27 to another end of the variable capacitive element 17.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：获得能够在宽范围的振荡频率下进行温度补偿的压控振荡器。解决方案：压控振荡器通过施加到可变电容元件17的两端的电压来控制振荡频率。振荡器具有频率控制偏置电路21，以根据控制来施加用于频率控制的电压电压到可变电容元件17的一端; 用于根据控制电压产生第一电流的第一电流源25，第二电流源26，根据温度产生第二电流，并独立于控制电压; 用于将第一和第二电流转换成电压的转换电阻器27; 以及温度补偿偏置电路23，用于根据转换电阻器27的转换电压将可变电容元件17的温度补偿电压施加到可变电容元件17的另一端。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008098936A Attenuator 有权
标题翻译： ATTENUATOR
公开(公告)号：JP2008098936A
公开(公告)日：2008-04-24
申请号：JP2006278001
申请日：2006-10-11
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAMOTO KAZUYA , MIYASHITA MIYO
IPC分类号： H03H7/25 , H03H11/24
CPC分类号： H03F1/3276 , H03H7/253 , H03H11/24
摘要： PROBLEM TO BE SOLVED: To provide an attenuator which can permit the same degree of distortion characteristics to the same degree of transmission power in a through state and in an attenuation state and which can compensate for gain compression characteristics of a power amplifier in the through state.
SOLUTION: A linearizer includes fifth diodes D51-D5n, a third resistor RLT1, sixth diodes D61-D6n, and a first n-channel MOS transistor Tr1. When a low-level voltage is applied to first and fourth control voltage terminals Vc1 and Vc4 and a high-level voltage is applied to second and third control voltage terminals Vc2 and Vc3, the low-level voltage is applied to a fifth control voltage terminal Vc5. When the high-level voltage is applied to the first and fourth control voltage terminals Vc1 and Vc4 and the low-level voltage is applied to the second and third control voltage terminals Vc2 and Vc3, the high-level voltage is applied to the fifth control voltage terminal Vc5.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种衰减器，其能够在通过状态和衰减状态下以相同程度的发射功率允许相同程度的失真特性，并且可以补偿功率放大器的增益压缩特性通过状态。解决方案：线性化器包括第五二极管D51-D5n，第三电阻器RLT1，第六二极管D61-D6n和第一n沟道MOS晶体管Tr1。当向第一和第四控制电压端子Vc1和Vc4施加低电平电压并且向第二和第三控制电压端子Vc2和Vc3施加高电平电压时，将低电平电压施加到第五控制电压端子 VC5。当高电平电压施加到第一和第四控制电压端子Vc1和Vc4并且低电平电压被施加到第二和第三控制电压端子Vc2和Vc3时，高电平电压被施加到第五控制电压端子Vc5。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2005064658A Output overvoltage protection circuit for power amplifier 审中-公开
标题翻译：用于功率放大器的输出过压保护电路
公开(公告)号：JP2005064658A
公开(公告)日：2005-03-10
申请号：JP2003289815
申请日：2003-08-08
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAMOTO KAZUYA , SHIMURA TERUYUKI , ASADA TOMOYUKI , SUZUKI SATOSHI
IPC分类号： H03F1/52 , H03F3/21
CPC分类号： H03F1/52
摘要： PROBLEM TO BE SOLVED: To solve the problem that a final-stage transistor generates an excessive output for thermal breakdown if load fluctuation occurs in an operation state at an overvoltage power supply.
SOLUTION: An overvoltage output protection circuit 71 for a power amplifier comprises monitor circuits (Trf1-Trf4) which allow a current to flow when an overvoltage output is monitored at an output transistor Tr3 at a final stage of a power amplifier 51, and current mirror circuits (Trm1 and Trm2) that supply a current proportional to the current from the monitor circuit. The output of the output transistor Tr3 at the final stage is suppressed by lowering the base bias of a first-stage transistor Tr1 using the current supplied from the current mirror circuit.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了解决在过电压电源的运行状态下发生负载波动的情况下，最终级晶体管产生用于热击穿的过大输出的问题。解决方案：用于功率放大器的过电压输出保护电路71包括监视电路（Trf1-Trf4），当功率放大器51的最后级的输出晶体管Tr3监视过电压输出时允许电流流动，以及电流镜电路（Trm1和Trm2），其提供与来自监视器电路的电流成比例的电流。通过使用从电流镜电路供给的电流来降低第一级晶体管Tr1的基极偏置来抑制最后级的输出晶体管Tr3的输出。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2003332864A Multistage amplifier circuit 审中-公开
标题翻译：多功能放大器电路
公开(公告)号：JP2003332864A
公开(公告)日：2003-11-21
申请号：JP2002142742
申请日：2002-05-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YAMAMOTO KAZUYA
IPC分类号： H03F3/68 , H03F3/193
CPC分类号： H03F3/193 , H03F2200/372
摘要： PROBLEM TO BE SOLVED: To provide a multistage amplifier circuit that operates with a small consumption current and can improve the output power.
SOLUTION: A current adjustment circuit 60 makes the drain current Id1 that flows to a transistor QN1 and the drain current Id2 that flows to a transistor QN2 in the multistage amplifier circuit 50 current values different from each other. As a result of this, even though the output power of the transistor QN1 increases, the amplification operation of the transistor QN2 is not saturated.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供以小消耗电流工作的多级放大器电路并且可以提高输出功率。解决方案：电流调节电路60使流过晶体管QN1的漏极电流Id1和流向多级放大器电路50中的晶体管QN2的漏极电流Id2的电流值彼此不同。结果，即使晶体管QN1的输出功率增加，晶体管QN2的放大操作也不饱和。版权所有（C）2004，JPO

9. 发明专利

JP2001239533A CASTING MOLD 失效
公开(公告)号：JP2001239533A
公开(公告)日：2001-09-04
申请号：JP2000312121
申请日：2000-10-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAGUCHI KENJI , IKEMOTO TAKAYUKI , YAMAMOTO KAZUYA
IPC分类号： B29C39/26 , B29C39/10
摘要： PROBLEM TO BE SOLVED: To provide a casting mold capable of manufacturing an organic resin cast article including no voids, not deformed in its outer shape structure and having high accuracy. SOLUTION: In the casting mold 2 for manufacturing the organic resin cast article 1 such as a bushing or the like having an electric conductor built therein, O-rings 5 or square rings 6 are used as rings brought into contact with both end parts of a metal element 11 such as the electric conductor or the like so as not to cover both end parts of the metal element with an organic resin and the internal spaces of ring arranging grooves 42 in which the rings are arranged communicate with the outside of the casting mold 2 through vent holes 45.

10. 发明专利

JP2000341052A PROTECTING CIRCUIT FOR POWER AMPLIFIER 失效
公开(公告)号：JP2000341052A
公开(公告)日：2000-12-08
申请号：JP15184999
申请日：1999-05-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMAMOTO KAZUYA , INOUE AKIRA , SUZUKI SATOSHI , ASADA TOMOYUKI
IPC分类号： H03F1/52
摘要： PROBLEM TO BE SOLVED: To prevent a transistor for power amplification from breaking owing to output load vibration by electrically connecting a collector to a base electrode of the transistor at least in the final stage of the power amplifiers which are connected in multiple stages and supplying a feedback current to the base electrode against a voltage higher than a prescribed one applied to the collector electrode. SOLUTION: The ON voltage of a TR 103 is about 1.3 (V), the value of a resistance 101 is denoted as Rfb1, and the value of a resistance 102 is represented as Rfb2. Then a protecting circuit 100 supplies a feedback current If1 from a point 107 to a point 105 by turning ON the TR 103 when the voltage Vf1 between terminals 108 and 109 exceeds (Rfb1+Rfb2)/Rfb2×1.3 (V). An ON voltage at which the protecting circuit 100 begins to function as a feedback circuit is set to a value which is larger than that of an ordinary collector bias voltage Vc3 supplied to a terminal 514 and less than that of the breakdown voltage of a TR 505.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式