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    • 1. 发明申请
    • PORTABLE RADIO
    • 便携式无线电
    • US20110316758A1
    • 2011-12-29
    • US13203749
    • 2010-12-03
    • Shingo SumiHiroaki KobayashiToshihiro AsahinaTsukasa Takahashi
    • Shingo SumiHiroaki KobayashiToshihiro AsahinaTsukasa Takahashi
    • H01Q1/48
    • H01Q1/243H01Q1/48H01Q1/52H04M1/0214H04M1/0235
    • An object of the present invention is to provide a portable radio apparatus that obtains a high antenna performance without limiting the degree of freedom in the exterior and design of a main body of portable radio apparatus. A portable radio apparatus (1) includes a radiation element (14) disposed on a side opposite to a rear part (10a) of a housing (10) through a circuit board (11), and a plate conductor (16) disposed substantially in parallel to the circuit board (11) between the circuit board (11) and the rear part (10a) of the housing (10). With the provision of the radiation element (14) and the plate conductor (16), when the portable radio apparatus (1) is put on a metal plate (300), the radiation element (14) operates as a vertical passive element having an electrical length of λ/2 with the help of an image current caused by the metal plate (300), and also the plate conductor (16) operates as a counterpoise of the radiation element (14), to thereby obtain a higher antenna performance on the metal plate (300). Also, since no rib for separating the antenna element (13) of the portable radio apparatus (1) from the metal plate is required, the degree of freedom in the exterior and design of the portable radio apparatus (1) main body is not limited.
    • 本发明的目的是提供一种在不限制便携式无线电设备的主体的外观和设计上的自由度的情况下获得高天线性能的便携式无线电设备。 便携式无线电设备(1)包括通过电路板(11)设置在与壳体(10)的后部(10a)相对的一侧的辐射元件(14),以及基本上位于壳体 平行于电路板(11)和壳体(10)的后部(10a)之间的电路板(11)。 通过设置辐射元件(14)和板状导体(16),当便携式无线电设备(1)放在金属板(300)上时,辐射元件(14)作为垂直无源元件工作,其具有 在金属板(300)引起的图像电流的帮助下,λ/ 2的电长度以及板状导体(16)作为辐射元件(14)的平衡作用,从而获得更高的天线性能 金属板(300)。 此外,由于不需要将便携式无线电设备(1)的天线元件(13)与金属板分离的肋条,便携式无线电设备(1)主体的外部和设计的自由度不受限制 。
    • 2. 发明申请
    • PORTABLE WIRELESS DEVICE
    • 便携式无线设备
    • US20110254743A1
    • 2011-10-20
    • US13140994
    • 2009-06-08
    • Hiroaki KobayashiToshihiro AsahinaShingo Sumi
    • Hiroaki KobayashiToshihiro AsahinaShingo Sumi
    • H01Q21/00
    • H01Q21/28H01Q1/243
    • An object of the invention is to provide a portable wireless device that can attain a high level of antenna performance when a plurality of antenna elements is present, and for which a housing can be made thinner. Among paths between a first power supply unit 13 and a second power supply unit 14 provided at edges of a notched part 17 of a circuit board, a ground pattern of a path with a short electrical length relative to a wavelength of an operating frequency of a first wireless unit 15 or an operating frequency of a second wireless unit 16 is split to give an electrically unconnected state. In this way, ground current caused by one of the antenna elements (for example, second antenna element 12) will not flow to or will be reduced in the other antenna element (for example, first antenna element 11), so that deterioration in the characteristics of the other antenna element can be kept low.
    • 本发明的目的是提供一种便携式无线设备,当存在多个天线元件时,可以获得高水平的天线性能,并且可以使壳体变薄。 在设置在电路板的缺口部分17的边缘处的第一电源单元13和第二电源单元14之间的路径中,具有相对于工作频率的波长的电长度短的路径的接地图案 第一无线单元15或第二无线单元16的工作频率被分裂以产生电气未连接的状态。 以这种方式,天线元件(例如,第二天线元件12)中的一个引起的接地电流将不会在另一个天线元件(例如,第一天线元件11)中流动或将被减小,使得 另一个天线元件的特性可以保持较低。
    • 3. 发明申请
    • MOBILE RADIO DEVICE
    • 移动无线电设备
    • US20110037676A1
    • 2011-02-17
    • US12989371
    • 2009-04-20
    • Hiroaki KobayashiHideki HayamaShingo SumiAkito Sakamoto
    • Hiroaki KobayashiHideki HayamaShingo SumiAkito Sakamoto
    • H01Q21/28
    • H04B1/1009H01Q1/243H01Q1/521H01Q21/28H04B1/005H04B1/525
    • To make it possible to suppress degradation in characteristics by electromagnetic coupling between plurality of antennas and to cope with miniaturization of a housing even if a plurality of radio circuits operate simultaneously. In a mobile radio apparatus in which a circuit board 102, a first antenna 111 and a second antenna 112 are mounted in a housing 101, a first radio section 121 and a second radio section 122 are mounted in the circuit board 102 and the first radio section 121 and the second radio section 122 can operate simultaneously, a reactance element 131 for influencing an operating frequency of the first radio section 121 or the second radio section 122 is disposed in at least one of the first antenna 111 and the second antenna 112 when an electric length of the circuit board 102 is configured to be shorter than one-fourth a wavelength of at least one of the operating frequencies of the first radio section 121 and the second radio section 122.
    • 为了能够通过多个天线之间的电磁耦合来抑制特性劣化,并且即使多个无线电路同时工作,也能应对壳体的小型化。 在其中电路板102,第一天线111和第二天线112安装在壳体101中的移动无线电设备中,第一无线电部分121和第二无线电部分122安装在电路板102中,第一无线电 部分121和第二无线电部分122可以同时操作,用于影响第一无线电部分121或第二无线电部分122的工作频率的电抗元件131设置在第一天线111和第二天线112中的至少一个中 电路板102的电长度被配置为短于第一无线电部分121和第二无线电部分122的至少一个工作频率的波长的四分之一。