公开(公告)号：US08718468B2

公开(公告)日：2014-05-06

申请号：US13344942

申请日：2012-01-06

申请人： Katsuhiro Takenaga ,  Ning Guan

发明人： Katsuhiro Takenaga ,  Ning Guan

IPC分类号： H04B17/00

CPC分类号： G02B6/02042 ,  G02B6/4246 ,  H04B10/2581

摘要： There is provided an optical fiber communication system restricting enlargement of the diameter of an optical fiber as well as enabling achievement of a large-capacity optical communication with a small number of optical fibers.An optical fiber communication system 100 includes an optical transmitter 10 transmitting a plurality of optical signals in parallel, a multicore fiber 20 in which outer circumferences of a plurality of cores are covered with a common clad, and the respective optical signals transmitted in parallel from the optical transmitter 10 are input into the cores, and an optical receiver 30 receiving the optical signals output in parallel from the respective cores of the multicore fiber, wherein the optical transmitter 10 and the optical receiver 30 perform a MIMO communication.

摘要翻译： 提供了限制光纤直径扩大的光纤通信系统，并且能够实现与少量光纤的大容量光通信。 光纤通信系统100包括并行发送多个光信号的光发送器10，多芯光纤20，其中多个芯的外周被公共包层覆盖，并且从多个光纤中并行传输的各个光信号 光发射器10被输入到核心，以及光接收器30，其接收从多芯光纤的各个核并行输出的光信号，其中光发射机10和光接收机30执行MIMO通信。

公开(公告)号：US08285094B2

公开(公告)日：2012-10-09

申请号：US13403539

申请日：2012-02-23

申请人： Katsuhiro Takenaga ,  Ning Guan ,  Syouji Tanigawa

发明人： Katsuhiro Takenaga ,  Ning Guan ,  Syouji Tanigawa

IPC分类号： G02B6/44

CPC分类号： G02B6/02042

摘要： The multicore fiber comprises 7 or more cores, wherein diameters of the adjacent cores differ from one another, wherein each of the cores performs single-mode propagation, wherein a relative refractive index difference of each of the cores is less than 1.4%, wherein a distance between the adjacent cores is less than 50 μm, wherein, in a case where a transmission wavelength of each of the cores is λ, the distance between the adjacent cores is , a mode field diameter of each of the cores is MFD, and a theoretical cutoff wavelength of each of the cores is λc, (/MFD)·(2λc/(λc+λ))≧3.95 is satisfied, and wherein a distance between the outer circumference of the coreand an outer circumference of the clad is 2.5 or higher times as long as the mode field diameter of each of the cores.

摘要翻译： 多芯纤维包括7个或更多个芯，其中相邻芯的直径彼此不同，其中每个芯执行单模传播，其中每个芯的相对折射率差小于1.4％，其中 相邻芯之间的距离小于50μm，其中，在每个芯的透射波长为λ的情况下，相邻芯之间的距离为每个芯的模场直径为MFD，并且 每个芯的理论截止波长为λc，（/MFD）·（2λc/（λc+λ））≥3.95满足，并且其中芯的外周与包层的外周之间的距离为2.5或 只要每个芯的模场直径就更长。

公开(公告)号：US08270789B2

公开(公告)日：2012-09-18

申请号：US12870647

申请日：2010-08-27

申请人： Kensuke Ogawa ,  Ning Guan ,  Ken Sakuma

发明人： Kensuke Ogawa ,  Ning Guan ,  Ken Sakuma

IPC分类号： G02B6/34 ,  H01B3/00 ,  H04J14/02

CPC分类号： G02B6/12007 ,  G02B6/124 ,  G02B6/29394 ,  G02F1/225 ,  G02F2001/213 ,  G02F2201/02 ,  G02F2201/307

摘要： There is provided an optical waveguide element comprises: a core of an optical waveguide; and a Bragg grating pattern that is provided on the core, wherein a pitch of the Bragg grating pattern takes a value from among three or more predetermined discrete values; the pitches that take the respective discrete values are present in a plurality of locations over an entire length of the optical waveguide respectively; and if a value from among all of the discrete values which has the highest distribution frequency is taken as M, and if the closest value to the M which is larger than the M is taken as A, and if the closest value to the M which is smaller than the M is taken as B, then a difference expressed as A−M is equal to a difference expressed as M−B.

摘要翻译： 提供了一种光波导元件，包括：光波导的芯; 以及设置在所述芯上的布拉格光栅图案，其中所述布拉格光栅图案的间距取三个或更多个预定离散值中的值; 采用相应离散值的间距分别存在于光波导的整个长度上的多个位置中; 并且如果将具有最高分布频率的所有离散值中的值作为M，并且如果与M相比较的M的最接近的值被视为A，并且如果与M的最接近的值 小于M取为B，则表示为A-M的差等于表示为M-B的差。

公开(公告)号：US20120112966A1

公开(公告)日：2012-05-10

申请号：US13240198

申请日：2011-09-22

申请人： Hiroiku Tayama ,  Ning Guan

发明人： Hiroiku Tayama ,  Ning Guan

IPC分类号： H01Q1/38

CPC分类号： H01Q9/40 ,  H01Q1/38 ,  H01Q9/28 ,  H01Q9/42

摘要： An object of the invention is to provide a small antenna which can cope with a wide band as well as has radiation characteristics stable in the wide band.The wide band antenna according to the invention is a wide band antenna in which a second radiation element and a first radiation element are disposed on the same substrate, and the substrate is bent on a straight line which is approximately parallel with a first straight line A approximately parallel with the disposition direction of the second radiation element and the first radiation element or rolled in a cylindrical shape which uses a straight line approximately parallel with the first straight line A as an axis direction. A power supply cable is disposed in parallel with the first straight line A.

摘要翻译： 本发明的目的是提供一种可以应付宽带的小型天线，并且具有在宽带中稳定的辐射特性。 根据本发明的宽带天线是宽带天线，其中第二辐射元件和第一辐射元件设置在同一基板上，并且基板在与第一直线A大致平行的直线上弯曲 大致与第二辐射元件和第一辐射元件的配置方向平行，或者以使用与第一直线A近似平行的直线作为轴线方向的圆筒形滚动。 电源电缆与第一直线A平行设置。

公开(公告)号：US07859366B2

公开(公告)日：2010-12-28

申请号：US11867550

申请日：2007-10-04

申请人： Ning Guan

发明人： Ning Guan

IPC分类号： H01P1/203

CPC分类号： H01P1/2013 ,  H01P1/203

摘要： Provided is a reflection-type bandpass filter for ultra-wideband wireless data communication, including a substrate. The substrate includes a dielectric layer and a ground layer deposited on one surface of the dielectric layer, a center conductor provided on a surface of the dielectric layer opposite the ground layer, and a side conductor provided on the surface of the dielectric layer opposite the ground layer. There is a prescribed distance between conductors with a non-conducting portion intervening therebetween. A center conductor width or a distance between conductors, or both, are distributed non-uniformly along a length direction of the center conductor.

摘要翻译： 提供了一种用于超宽带无线数据通信的反射型带通滤波器，包括基板。 基板包括沉积在电介质层的一个表面上的电介质层和接地层，设置在与接地层相对的电介质层的表面上的中心导体，以及设置在与地面相对的电介质层表面上的侧导体 层。 导体之间具有规定距离，其间介于其间的非导电部分。 中心导体宽度或导体之间的距离或两者沿着中心导体的长度方向不均匀地分布。

公开(公告)号：US20100322559A1

公开(公告)日：2010-12-23

申请号：US12870684

申请日：2010-08-27

申请人： Kensuke Ogawa ,  Ning Guan ,  Ken Sakuma

发明人： Kensuke Ogawa ,  Ning Guan ,  Ken Sakuma

IPC分类号： G02B6/34 ,  G06F17/10

CPC分类号： G02B6/10 ,  G02B6/124 ,  G02B6/29325 ,  G02B6/29394

摘要： There is provided a planar optical waveguide element in which an optical waveguide comprises a core, and a gap portion that is positioned in a center of a width direction of the core so as to extend in a propagation direction of guided light, and that has a lower refractive index than that of the core; and wherein the core comprises two areas that are separated by the gap portion, and a single mode optical waveguide, in which a single mode is propagated span crossing these two areas, is formed.

摘要翻译： 提供了一种平面光波导元件，其中光波导包括芯，以及间隙部，其位于芯的宽度方向的中心，以沿着导光的传播方向延伸，并且具有 折射率低于芯的折射率; 并且其中芯包括由间隙部分分开的两个区域，并且形成单模模式传播跨越这两个区域的单模光波导。

公开(公告)号：US20100214174A1

公开(公告)日：2010-08-26

申请号：US12551800

申请日：2009-09-01

申请人： Ning Guan ,  Koichi Ito

发明人： Ning Guan ,  Koichi Ito

IPC分类号： H01Q1/38

CPC分类号： H01Q1/243 ,  H01Q1/36 ,  H01Q5/371 ,  H01Q9/42

摘要： The present invention provides an antenna that is small in size and has band frequencies corresponding to multibands, and a wireless communication apparatus including the antenna. The antenna according to the present invention has two radiation elements 12a and 12b connected to a ground plate 11 via a shorting pin. The two radiation elements 12a and 12b each have a lower arm and an upper arm that are formed through bending. The lower arm is connected to the shorting pin and is located closer to the ground plate 11 than the upper arm is. At least one of the lower arm and the upper arm has a meandered structure.

摘要翻译： 本发明提供一种尺寸小且具有对应于多个频带的频带频率的天线，以及包括该天线的无线通信装置。 根据本发明的天线具有通过短路引脚连接到接地板11的两个辐射元件12a和12b。 两个辐射元件12a和12b各自具有通过弯曲形成的下臂和上臂。 下臂连接到短路销，并且比上臂更靠近接地板11。 下臂和上臂中的至少一个具有蜿蜒的结构。

公开(公告)号：US07292762B2

公开(公告)日：2007-11-06

申请号：US11178477

申请日：2005-07-12

申请人： Ning Guan ,  Katsuhiro Takenaga ,  Katsuaki Izoe ,  Kazuhiko Aikawa ,  Kuniharu Himeno

发明人： Ning Guan ,  Katsuhiro Takenaga ,  Katsuaki Izoe ,  Kazuhiko Aikawa ,  Kuniharu Himeno

IPC分类号： G02B6/032

CPC分类号： G02B6/02333 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/14

摘要： A hole-assisted holey fiber is provided. The holey fiber includes a core region; a cladding region around the core region, and a plurality of holes in the cladding region around the core region. The core region has a higher refractive index than that of the cladding region. The holes form an inner hole layer and an outer hole layer, and the inner hole layer has the same number of holes as the number of the holes in the outer hole layer. The outer layer holes are provided in locations in which inner holes are absent when viewed from the center of the core region, and holes defining the same layer have the same diameter. A distance Λ1 from a center of the core region to a center of an inner hole and a distance Λ2 from the center of the core region to a center of an outer hole satisfy the relationship Λ1

摘要翻译： 提供孔辅助多孔纤维。 多孔纤维包括芯区域; 围绕芯区域的包层区域，以及围绕芯区域的包层区域中的多个孔。 芯区域具有比包层区域更高的折射率。 孔形成内孔层和外孔层，内孔层的孔数与外孔层的孔数相同。 外层孔设置在从芯区域的中心观察时不存在内孔的位置，并且限定相同层的孔具有相同的直径。 从芯部区域的中心到内部孔的中心距离λ1到从芯部区域的中心到外部中心的距离λ2<2 < 孔的内径满足关系Lambda 1 N 2 N 2和内孔的直径d 1 N 2，直径d 2 < SUB>满足关系d 1 > = d 2 2。

公开(公告)号：US20050013570A1

公开(公告)日：2005-01-20

申请号：US10891177

申请日：2004-07-15

申请人： Ning Guan ,  Katsuhiro Takenaga ,  Kuniharu Himeno

发明人： Ning Guan ,  Katsuhiro Takenaga ,  Kuniharu Himeno

IPC分类号： G02B6/028 ,  G02B6/02 ,  G02B6/18

CPC分类号： G02B6/0288

摘要： A graded-index multimode fiber includes a core containing fluorine and a cladding which is provided at an outer periphery of the core, and the fiber has a refractive index profile which satisfies the following Formula (1): n ⁡ ( r ) = { n 1 ⁡ [ 1 - 2 ⁢   ⁢ Δ ⁢   ⁢ ( r a ) α ] 1 / 2 ( O ≤ r ≤ a ) n 1 ⁡ ( 1 - 2 ⁢   ⁢ Δ ) 1 / 2 ( r > a ) ( 1 ) where n(r) is a refractive index of the optical fiber at a distance “r” from the center of the core, n1 is a refractive index at the center of the core, Δ is a relative refractive index difference of the center of the core with respect to the cladding, “a” is a core radius, and α is a refractive index profile exponential parameter.

公开(公告)号：US09490527B2

公开(公告)日：2016-11-08

申请号：US13539955

申请日：2012-07-02

申请人： Ning Guan ,  Hiroiku Tayama

发明人： Ning Guan ,  Hiroiku Tayama

IPC分类号： H01Q7/00 ,  H01Q21/00 ,  H01Q1/32 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q1/38 ,  H01Q9/28

CPC分类号： H01Q1/243 ,  H01Q1/325 ,  H01Q1/3291 ,  H01Q1/36 ,  H01Q1/38 ,  H01Q7/00 ,  H01Q9/285 ,  H01Q21/30

摘要： An antenna element (115) of an antenna device has first and second root sections (117) and (118) and an intermediate section lying between the first and second root sections (117) and (118). A feed section (114) is provided in the first and second root sections (117) and (118). The first and second root sections (117) and (118) are arranged so as to surround the feed section (114), and are provided in a wind section (113). Tail end linear parts in the wind section (113) extend in respective opposite directions. At least one of the first and second root sections (117) and (118) has a wider width part, which is formed such that a portion that overlaps a feed line connected with the feed section (114) is larger in width than other portions. This makes it possible to realize high radiant gain and improve a VSWR characteristic for each radio wave.

摘要翻译： 天线装置的天线元件（115）具有第一和第二根部（117）和（118）以及位于第一和第二根部（117）和（118）之间的中间部分。 馈送部分（114）设置在第一和第二根部分（117）和（118）中。 第一和第二根部（117）和（118）被布置成围绕进给部分（114），并且设置在风力部分（113）中。 风部（113）中的尾端直线部分沿相反的方向延伸。 第一和第二根部（117）和（118）中的至少一个具有较宽的宽度部分，其形成为使得与馈送部分（114）连接的馈送线重叠的部分的宽度大于其他部分 。 这使得可以实现高辐射增益并且提高每个无线电波的VSWR特性。