-
公开(公告)号：US09893421B2
公开(公告)日：2018-02-13
申请号：US15137176
申请日：2016-04-25
发明人： Kenichi Ishizuka
CPC分类号： H01Q5/335 , H01Q21/0006 , H01Q21/30 , H03H7/09 , H03H7/38 , H04B1/0458
摘要： An impedance converter circuit includes a transformer with a primary coil connected to a power feed port, a phase shifter circuit connected between a secondary coil of the transformer and an antenna port, and a bypass circuit connected between the power feed port and the antenna port. In a high band, an absolute value of impedance of the transformer viewed from the antenna port via the phase shifter circuit is higher than an absolute value of impedance of the bypass circuit. In a low band, the absolute value of the impedance of the transformer viewed from the antenna port via the phase shifter circuit is lower than the absolute value of the impedance of the bypass circuit.
-
公开(公告)号：US09837976B2
公开(公告)日：2017-12-05
申请号：US13792469
申请日：2013-03-11
发明人： Noboru Kato , Kenichi Ishizuka , Noriyuki Ueki
CPC分类号： H03H7/38 , H01Q1/243 , H01Q1/50 , H04B1/0458
摘要： An impedance converting circuit module includes a first matching circuit, a feeding-circuit-side matching circuit interposed between the first matching circuit and a feeding circuit, and an antenna-side matching circuit interposed between the first matching circuit and a radiating element. The feeding-circuit-side matching circuit performs impedance matching between a feeding port of the feeding circuit and the first matching circuit, and the antenna-side matching circuit performs impedance matching between a port of the radiating element and the first matching circuit.
-
公开(公告)号：US09698831B2
公开(公告)日：2017-07-04
申请号：US15145196
申请日：2016-05-03
发明人： Kenichi Ishizuka
IPC分类号： H01F19/04 , H04B1/00 , H03H7/38 , H01F17/00 , H01F27/245 , H01F27/28 , H01F27/29 , H04B1/40 , H04W88/06
CPC分类号： H04B1/0053 , H01F17/0013 , H01F19/04 , H01F27/245 , H01F27/2804 , H01F27/29 , H01F2027/2809 , H03H7/38 , H04B1/40 , H04W88/06
摘要： In a transformer, first and second coils are provided on different substrate layers of a multilayer body. The first and second coil conductors are interlayer-connected to each other by interlayer connection conductors. A coil aperture defined by the first coil conductor and a coil aperture defined by the second coil conductor overlap each other when seen in a plan view from a laminating direction of the multilayer body. The first and second coil conductors are connected to each other at at least two places with the interlayer connection conductors interposed therebetween. A parallel connection portion including a first portion of the first coil conductor and a first portion of the second coil conductor is provided, and a series connection portion including a second portion of the first coil conductor and a second portion of the second coil conductor is provided.
-
公开(公告)号：US09298873B2
公开(公告)日：2016-03-29
申请号：US14636393
申请日：2015-03-03
CPC分类号： G06F17/5072 , G06F17/5063 , G06F17/5077 , G06F2217/12 , H01F19/04 , H01F2027/2809 , H01Q1/00 , H01Q5/50
摘要： To design an impedance transformation circuit, a transformer ratio of a transformer circuit is determined according to an impedance ratio. A coupling coefficient between a first inductance element and a second inductance element, an inductance of the first inductance element, and an inductance of the second inductance element are determined. A shape of the second inductance element is determined. A shape of the first inductance element is determined such that the first inductance element includes at least two layers of loop conductors, and an interlayer distance between the loop conductors is determined such that an inductance value of the first inductance element is a desired value.
摘要翻译： 为了设计阻抗变换电路，根据阻抗比确定变压器电路的变压器比。 确定第一电感元件和第二电感元件之间的耦合系数，第一电感元件的电感和第二电感元件的电感。 确定第二电感元件的形状。 确定第一电感元件的形状，使得第一电感元件包括至少两层环形导体，并且确定环形导体之间的层间距离，使得第一电感元件的电感值为期望值。
-
45.发明授权公开(公告)号：US09287629B2
公开(公告)日：2016-03-15
申请号：US13834487
申请日：2013-03-15
发明人： Noboru Kato , Kenichi Ishizuka , Noriyuki Ueki
摘要： In a case in which a capacitor is not provided in parallel with a second inductance element, the impedance ratio between a first inductance element and the second inductance element is constant regardless of the frequency, but when a capacitor is provided, the parallel impedance of the capacitor and the second inductance element gradually increases at frequencies equal to and below the resonant frequency. Consequently, at frequencies equal to or below the resonant frequency, the higher the frequency becomes, the larger the value of the real portion of the impedance observed on a high-frequency-circuit side becomes. Therefore, by appropriately setting the values of the first inductance element, the second inductance element, and the capacitor, the frequency characteristics of the real portion of the impedance observed on the high-frequency-circuit side can be set to be similar to the frequency characteristics of the radiation resistance of the antenna.
摘要翻译： 在不与第二电感元件并联设置电容器的情况下，第一电感元件和第二电感元件之间的阻抗比率与频率无关，但是当提供电容器时，并联阻抗 电容器和第二电感元件在等于和低于谐振频率的频率处逐渐增加。 因此，在等于或低于谐振频率的频率下，频率越高，在高频电路侧观测到的阻抗的实部的值越大。 因此，通过适当地设定第一电感元件，第二电感元件和电容器的值，可以将在高频电路侧观测到的阻抗的实部的频率特性设定为与频率 天线的辐射电阻特性。
-
公开(公告)号：US09153865B2
公开(公告)日：2015-10-06
申请号：US14247271
申请日：2014-04-08
发明人： Kenichi Ishizuka , Hiroshi Nishida
摘要： A multiband-capable antenna device includes a loop-shaped radiation element including a power feed end and a ground end, and a matching circuit including a first inductance element loaded at the power feed end and a second inductance element loaded at the ground end and magnetic-field coupled to the first inductance element. The loop-shaped radiation element is configured to resonate in a plurality of resonance modes including an even mode and an odd mode. The first inductance element and the second inductance element are wound and connected such that magnetic fields are mutually strengthened for one of the even mode and the odd mode, and such that the magnetic fields are mutually weakened for the other of the even mode and the odd mode.
摘要翻译： 具有多频带功能的天线装置包括：环形辐射元件，包括馈电端和接地端;以及匹配电路，包括负载在馈电端的第一电感元件和装在地端的第二电感元件和磁 场耦合到第一电感元件。 环形辐射元件被配置为以包括偶模和奇模的多种谐振模式谐振。 第一电感元件和第二电感元件被缠绕和连接，使得对于偶模和奇模中的一个，磁场相互强化，并且对于偶模和奇数中的另一个，磁场相互削弱 模式。
-
47.发明授权Frequency stabilization circuit, antenna device, and communication terminal apparatus 有权频率稳定电路，天线装置和通信终端装置公开(公告)号：US09065422B2
公开(公告)日：2015-06-23
申请号：US13904124
申请日：2013-05-29
发明人： Kenichi Ishizuka , Noboru Kato
CPC分类号： H03H7/38 , H01Q21/0006 , H01Q21/30 , H03H7/0115 , H03H7/461 , H03H7/463 , H03H2001/0085 , H04B1/0458 , H04B1/18
摘要： A frequency stabilization circuit includes a primary side circuit connected to a feeder circuit, and a secondary side circuit electromagnetically coupled to the primary side circuit. The primary side circuit is a series circuit including a first coiled conductor and a second coiled conductor, and the secondary side circuit is a series circuit including a third coiled conductor and a fourth coiled conductor. An antenna element is connected through a high pass filter to a first antenna connection portion set as a connection point of the first coiled conductor and the second coiled conductor. Additionally, the antenna element is connected through a low pass filter to a second antenna connection portion set as a connection point between the second coiled conductor and the fourth coiled conductor.
摘要翻译： 频率稳定电路包括连接到馈电电路的初级侧电路和与初级侧电路电磁耦合的次级侧电路。 初级侧电路是包括第一线圈导体和第二线圈导体的串联电路，次级侧电路是包括第三线圈导体和第四线圈导体的串联电路。 天线元件通过高通滤波器连接到设置为第一线圈导体和第二线圈导体的连接点的第一天线连接部分。 此外，天线元件通过低通滤波器连接到设置为第二线圈状导体和第四线圈导体之间的连接点的第二天线连接部分。
-
48.发明授权Coupling degree adjustment circuit, antenna device, and wireless communication device 有权耦合度调节电路，天线装置和无线通信装置公开(公告)号：US08912972B2
公开(公告)日：2014-12-16
申请号：US14071682
申请日：2013-11-05
发明人： Noriyuki Ueki , Noboru Kato , Kenichi Ishizuka , Hiroshi Nishida
摘要： A dielectric body includes a first radiating element on a first side and a second radiating element on a second side. The first radiating element and the second radiating element are linear conductors that each extend from a first end to a second end (an open end), and are parallel or substantially parallel to each other in a direction from the first end to the second end. The first end of the first radiating element is connected to a first port of a coupling degree adjustment circuit, and the first end of the second radiating element is connected to a second port of the coupling degree adjustment circuit. The first radiating element and the second radiating element are mainly coupled to each other in the coupling degree adjustment circuit.
摘要翻译： 电介质体包括在第一侧上的第一辐射元件和在第二侧上的第二辐射元件。 第一辐射元件和第二辐射元件是从第一端延伸到第二端（开口端）的线性导体，并且在从第一端到第二端的方向上彼此平行或基本平行。 第一辐射元件的第一端连接到耦合度调节电路的第一端口，第二辐射元件的第一端连接到耦合度调节电路的第二端口。 第一辐射元件和第二辐射元件在耦合度调节电路中主要彼此耦合。
-
-
-
-
-
-
-
搜索结果
48 条记录 (耗时 0.024 秒)
