公开(公告)号：US20060066406A1

公开(公告)日：2006-03-30

申请号：US11209691

申请日：2005-08-24

申请人： Tomonori Tanoue ,  Masami Ohnishi

发明人： Tomonori Tanoue ,  Masami Ohnishi

IPC分类号： H03F3/04

CPC分类号： H03F1/26 ,  H01L2924/0002 ,  H03F1/42 ,  H03F3/04 ,  H03F3/195 ,  H03F2200/36 ,  H01L2924/00

摘要： The invention provides a wide-band, low-noise, and small-sized high frequency power amplifier that has small temperature dependence of the gain and is excellent in input matching. A parallel circuit consisting of a resistor whose resistance depends strongly on temperature and a conventional resistor is inserted serially into a signal path in an input matching circuit of an amplification unit, and resistances of the resistors are set to appropriate values, for example, about ⅔ times an input impedance of the amplification unit.

公开(公告)号：US06674323B2

公开(公告)日：2004-01-06

申请号：US10192589

申请日：2002-07-11

申请人： Osamu Kagaya ,  Masami Ohnishi ,  Kenji Sekine ,  Tomonori Tanoue

发明人： Osamu Kagaya ,  Masami Ohnishi ,  Kenji Sekine ,  Tomonori Tanoue

IPC分类号： H03F114

CPC分类号： H03F3/602 ,  H03F1/0277 ,  H03F1/302 ,  H03F1/56 ,  H03F3/195 ,  H03F3/245 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/429 ,  H03F2200/555 ,  H03F2203/7206 ,  H03F2203/7215 ,  H03F2203/7221 ,  H03F2203/7231 ,  H03F2203/7236

摘要： To provide a small-sized high frequency power amplifier for preventing oscillation by a small number of switching circuits and outputting high power and low power with high efficiencies, a high frequency power amplifier module and a portable telephone, the high frequency power amplifier is constituted by an amplifying circuit A and an amplifying circuit B connected in parallel, a size of a transistor at an output stage of the amplifying circuit B is made to be equal to or smaller than ¼ of a size of a transistor of an output stage of the amplifying circuit A and a switching circuit is connected between a signal line forward from the output stage of the amplifying circuit A and a ground terminal.

摘要翻译： 为了提供一种小型高频功率放大器，用于防止少量开关电路的振荡并以高效率输出高功率和低功率，高频功率放大器模块和便携式电话，高频功率放大器由 放大电路A和放大电路B并联连接，将放大电路B的输出级的晶体管的尺寸设定为放大电路的输出级的晶体管的尺寸的1/4 电路A和开关电路连接在从放大电路A的输出级向前方的信号线与接地端子之间。

公开(公告)号：US06396349B2

公开(公告)日：2002-05-28

申请号：US09812780

申请日：2001-03-15

申请人： Ken Takei ,  Masami Ohnishi ,  Kenji Sekine

发明人： Ken Takei ,  Masami Ohnishi ,  Kenji Sekine

IPC分类号： H03F360

CPC分类号： H01P5/16 ,  H03F1/3229 ,  H03F3/605 ,  H03F2200/372

摘要： A power combiner having a plurality of power amplifiers which are even-numbered, a plurality of series-connected branch circuits for respectively distributing input power to the plurality of power amplifiers, and a plurality of series-connected combiners for combining the respective output power of the plurality of power amplifiers. In the case of any one of such combinations as to equalize electric lengths of transmission lines for connecting between two power amplifiers selected from the plurality of power amplifiers, the combinations each being established by using all of the plurality of power amplifiers once, the electric lengths at which the any one of the combinations are established, take &lgr;/2i (where &lgr;=wavelength of fundamental wave, and i=positive integer).

摘要翻译： 一种功率组合器，其具有多个偶数功率放大器，多个串联连接的分支电路，用于分别向多个功率放大器分配输入功率;以及多个串联组合器，用于将相应输出功率 多个功率放大器。 在将从多个功率放大器中选择的两个功率放大器之间连接的传输线的电长度相等的任何一种组合的情况下，通过使用所有多个功率放大器一次来建立各自的组合，电长度 建立任何一个组合，取lambd / 2i（其中lambd =基波波长，i =正整数）。

公开(公告)号：US06236272B1

公开(公告)日：2001-05-22

申请号：US09364033

申请日：1999-07-30

申请人： Ken Takei ,  Masami Ohnishi ,  Kenji Sekine

发明人： Ken Takei ,  Masami Ohnishi ,  Kenji Sekine

IPC分类号： H03F360

CPC分类号： H01P5/16 ,  H03F1/3229 ,  H03F3/605 ,  H03F2200/372

摘要： A travelling wave power combiner ensures high isolation between power amplifiers and reduces harmonic components caused by non-linearity of each power amplifier. Therefore, the travelling wave power circuit is provided with even-numbered power amplifiers, a plurality of series-connected branch circuits for respectively distributing input power to the even-numbered power amplifiers, and a plurality of series-connected combiners for combining respective output power of the even-numbered power amplifiers. With respect to all of such combinations as to equalize electric lengths of transmission lines for connecting between the power amplifiers to one another, which combinations are established for the plurality of power amplifiers, the electric lengths at which the combinations are established, take &lgr;/2i (where &lgr;=the wavelength of a fundamental wave, and i=positive integer).

摘要翻译： 行波功率组合器确保功率放大器之间的高隔离度，并减少由每个功率放大器的非线性引起的谐波分量。 因此，行波电源电路设置有偶数功率放大器，多个串联连接的分支电路，用于将输入功率分配到偶数功率放大器，以及多个串联组合器，用于组合各自的输出功率 的偶数功率放大器。 关于将功率放大器之间连接的传输线的电长度相等的所有组合，为多个功率放大器建立哪些组合，组合建立的电长度取lambd / 2i （其中lambd =基波的波长，i =正整数）。

公开(公告)号：US5559524A

公开(公告)日：1996-09-24

申请号：US207428

申请日：1994-03-08

申请人： Ken Takei ,  Masami Ohnishi ,  Mikio Kuwahara

发明人： Ken Takei ,  Masami Ohnishi ,  Mikio Kuwahara

IPC分类号： H01Q1/24 ,  H01Q1/36 ,  H01Q1/08

CPC分类号： H01Q1/362 ,  H01Q1/242

摘要： An antenna of small size is provided which can be mass-produced, which is suitable for use with a portable receiver and which does not require provision of a separate matching circuit. The antenna includes a plurality of meander antennas printed on at least one dielectric film and satisfying respectively different resonance conditions in a frequency band used by the receiver, at least one dielectric solid cylinder for winding the dielectric film therearound, and a dielectric hollow cylinder for covering the dielectric film wound around the dielectric solid cylinder. The individual meander antennas printed on the dielectric film do not make direct electrical contact with each other, and one of the meander antennas connected to a feeder or a helical antenna surrounding the dielectric solid cylinder acts to produce multiple resonance by means of electromagnetic coupling with the other meander antennas, thereby widening the frequency band. The dielectric solid cylinder around which the dielectric film is wound or to which the dielectric film is bonded may be replaced by a dielectric polygonal prism such as a dielectric square prism. In the antenna, impedance matching with the radio frequency part of the receiver can be satisfactorily achieved, so that an antenna of low cost suitable for portable receivers can be offered.

摘要翻译： 提供小尺寸的天线，其可以批量生产，其适合于与便携式接收器一起使用，并且不需要提供单独的匹配电路。 该天线包括印刷在至少一个电介质膜上的多个曲折天线，并且在接收器使用的频带中分别满足不同的共振条件，至少一个用于在其周围缠绕电介质膜的电介质实心圆柱体，以及用于覆盖 电介质膜缠绕在电介质实心圆筒上。 打印在电介质膜上的各个曲折天线不会彼此直接电接触，并且连接到馈电器或围绕电介质实心圆柱体的螺旋天线之一的曲折天线之一用于通过电磁耦合产生多个谐振 其他弯曲天线，从而扩大了频带。 电介质膜被缠绕在其周围或电介质膜被接合的电介质实心圆柱体可以由电介质多边形棱柱如电介质正方形棱镜代替。 在天线中，可以令人满意地实现与接收机的射频部分的阻抗匹配，从而可以提供适合于便携式接收机的低成本的天线。