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公开(公告)号：EP1411586A1
公开(公告)日：2004-04-21
申请号：EP02746138.3
申请日：2002-07-23
发明人： ITO, Hideo , EGAWA, Kiyoshi , KOMUKAI, Yasunori
IPC分类号： H01Q1/24
摘要： An antenna for a cellular wireless apparatus which has the directivity in the direction opposite to the human body and improves the antenna gain. Wireless-apparatus base 10 is a circuit board and feeds power to planar radiation element 20. Planar radiation element 20 is disposed on an upper surface of wireless-apparatus base 10, given power, and transmits and receives radio signals. Parasitic element 30 is on its one end short-circuited with wireless-apparatus base 10, and disposed so that the center axis thereof is parallel to the center axis of planar radiation element 20. A length of parasitic element 30 is set to operate as a reflector.
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公开(公告)号：EP1480288A1
公开(公告)日：2004-11-24
申请号：EP03707116.4
申请日：2003-02-27
发明人： EGAWA, Kiyoshi , ITO, Hideo
IPC分类号： H01Q1/24
摘要： Feed point (101) performs unbalanced feeding to an antenna element (102). A parasitic element (104) is provided near the antenna element (102) and a ground plane (103), approximately parallel to the width direction of the ground plane (103). Moreover, the parasitic element (104) is configured in a length to operate as a director when provided on the side of the body with respect to the ground plane (103) during talk time and in a length to operate as a reflector when provided on the opposite side from the body with respect to the ground plane (103). By this means, it is possible to improve gain and reduce the specific absorption rate (SAR) during talk time.
摘要翻译： 馈电点（101）对天线元件（102）进行不平衡馈电。 在天线元件（102）附近提供寄生元件（104）和大致平行于接地平面（103）的宽度方向的接地平面（103）。 此外，寄生元件（104）被构造成在通话时间期间相对于接地平面（103）设置在主体侧面时作为导向器的长度，并且在设置在 相对于接地平面（103）的与主体相反的一侧。 通过这种方式，可以在通话时间期间改善增益并降低比吸收率（SAR）。
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公开(公告)号：EP1414107B1
公开(公告)日：2005-11-02
申请号：EP02746137.5
申请日：2002-07-23
发明人： KOJIMA, Suguru , ITO, Hideo
CPC分类号： H01Q19/005 , H01Q1/243 , H01Q1/245 , H01Q5/378 , H01Q9/16
摘要： A built-in antenna apparatus the whole of which is much smaller and much thinner than conventional while widening the band without making the apparatus itself platelike, and which has an improved a gain and a reduced SAR (Specific Absorption Rate). Adjustment of the length and thickness of a dipole antenna (12) and those of a passive device (14) and the distance between them to predetermined values makes it possible to vary the self-impedance of the dipole antenna (12), self-impedance of the passive device (14), the mutual-impedances of the dipole antenna (12) and passive device (14), and the input impedance of a built-in antenna apparatus (10), resulting in widening of the band.
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公开(公告)号：EP1418641A1
公开(公告)日：2004-05-12
申请号：EP02755843.6
申请日：2002-08-06
发明人： EGAWA, Kiyoshi , ITO, Hideo
IPC分类号： H01Q1/24
摘要： An antenna apparatus for a radio set capable of reducing influences from the human body, improving the gain and reducing a non-absorption ratio (SAR) without narrowing the communication area. The apparatus according to the present invention is an unbalanced power supply type antenna apparatus for a radio set provided with a power-supplied antenna element 1 and a base plate 3, wherein a tabular parasitic element 7 is placed along the base plate 3 and the length of the parasitic element 7 is set so that the tabular parasitic element 7 operates as a reflector when placed on the human body side and operates as a wave director when placed on the opposite side of the human body.
摘要翻译： 一种能够减少人体影响的无线电设备的天线装置，改善增益并降低非吸收比（SAR），而不会使通信区域变窄。 根据本发明的装置是一种用于无线电设备的不平衡电力供应型天线装置，其中设置有供电天线元件1和基板3，其中平板状寄生元件7沿基板3放置，长度 寄生元件7被设置为使得当放置在人体侧时，平板寄生元件7作为反射器操作，并且当放置在人体的相对侧上时，作为波导管来操作。
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公开(公告)号：EP1359639A1
公开(公告)日：2003-11-05
申请号：EP02790924.1
申请日：2002-12-27
发明人： ITO, Hideo , EGAWA, Kiyoshi
IPC分类号： H01Q1/24
CPC分类号： H01Q21/30 , H01Q1/243 , H01Q1/245 , H01Q1/38 , H01Q5/378 , H01Q5/385 , H01Q5/392 , H01Q5/49 , H01Q9/42 , H01Q21/24
摘要： The unbalanced feeding antenna element 201 is fed power from one end and placed on the upper surface of the circuit substrate 103. The passive element 202 has open both ends, is set to a length corresponding to a predetermined frequency, placed in substantially parallel to the unbalanced feeding element 201 placed on the circuit substrate 103 at a distance of approximately 1/10 or less of a wavelength at a frequency used for transmission/reception. This suppresses the antenna current flowing into the circuit substrate 103 to aminimum level and makes radiation from the passive element 202 dominant compared to radiation from the circuit substrate 103. This makes it possible to suppress a reduction in the antenna gain caused by the human body when the user uses the communication terminal apparatus.
摘要翻译： 不平衡馈电天线元件201从一端馈送电力并放置在电路基板103的上表面上。无源元件202具有开放的两端，被设置为与预定频率相对应的长度，放置在大致平行于 放置在电路基板103上的不平衡馈送元件201以用于发送/接收的频率的波长的大约1/10或更小的距离。 这就抑制了流到电路基板103中的天线电流达到最高水平，并且使来自无源元件202的辐射与来自电路基板103的辐射相比是显着的。这使得可以抑制由人体引起的天线增益减小 用户使用通信终端装置。
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公开(公告)号：EP1315233A1
公开(公告)日：2003-05-28
申请号：EP01961187.0
申请日：2001-08-30
发明人： ITO, Hideo , EGAWA, Kiyoshi
摘要： A high gain built-in antenna for a radio communication terminal with less influence from the human body. This built-in antenna for a radio communication terminal includes bar-shaped second passive element 392 facing antenna elements making up dipole antenna 321. The distance between this second passive element 392 and the antenna elements making up dipole antenna 321 is appropriately set in such a way as to widen the band of the input impedance characteristic by changing mutual impedance between second passive element 392 and the antenna elements making up dipole antenna 321.
摘要翻译： 用于无线电通信终端的高增益内置天线，受人体影响较小。 该用于无线电通信终端的内置天线包括面向构成偶极天线321的天线元件的条形第二无源元件392.该第二无源元件392与构成偶极天线321的天线元件之间的距离适当地设置在这样的 通过改变第二无源元件392与构成偶极天线321的天线元件之间的互阻抗来扩大输入阻抗特性的频带。
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公开(公告)号：EP1414107A1
公开(公告)日：2004-04-28
申请号：EP02746137.5
申请日：2002-07-23
发明人： KOJIMA, Suguru , ITO, Hideo
CPC分类号： H01Q19/005 , H01Q1/243 , H01Q1/245 , H01Q5/378 , H01Q9/16
摘要： A built-in antenna device that broadens bandwidth and that realizes further miniaturization and thin-modeling without making a device itself a flat shape, while still enhancing gain and reducing SAR (specific Absorption Rate). The self impedance of dipole antenna 12, the self impedance of parasitic element 14, and the mutual impedance between dipole antenna 12 and parasitic element 14 change as the length and girth of dipole antenna 12 and parasitic element 14, and the distance therebetween are adjusted to predetermined levels, so as to broaden bandwidth by changing the input impedance of built-in antenna 10.
摘要翻译： 内置天线装置可扩大带宽，实现进一步小型化和薄型化，同时不会使设备本身变成扁平形状，同时仍能提高增益并降低SAR（特定吸收率）。 偶极天线12的自身阻抗，寄生元件14的自身阻抗以及偶极天线12和寄生元件14之间的互阻抗随着偶极天线12和寄生元件14的长度和周长以及它们之间的距离被调整为 通过改变内置天线10的输入阻抗来扩大带宽。
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公开(公告)号：EP1329980A1
公开(公告)日：2003-07-23
申请号：EP01972489.7
申请日：2001-09-26
发明人： EGAWA, Kiyoshi , ITO, Hideo
摘要： Mobile wireless device antenna configured such that a built-in supplementary antenna compensates for sensitivity deterioration that occurs in a main antenna due to mismatching polarized waves and directivity performance. Built-in antenna 60 is in a reverse L shape, and configured with a linear antenna element perpendicular to a base plane is bent in the middle parallel to the length direction of radio base 30. That is, built-in antenna 60 comprises linear antenna element-verticalpart 62 that is perpendicular to the base plane and liner antenna element-horizontal part 64 that extends in the length direction of radio base 30. Of these, linear antenna element-vertical part 62 is connected contact 40b of switch 40 as a power supply element.
摘要翻译： 移动无线设备天线被配置为使得内置的辅助天线补偿由于偏振波的失配和方向性性能而在主天线中发生的灵敏度劣化。 内置天线60为反向L形，并且配置有垂直于基面的线状天线元件，在平行于无线电基座30的长度方向的中间弯曲。也就是说，内置天线60包括线性天线 垂直于垂直于基座的元件垂直部分62和在无线电基座30的长度方向上延伸的线性天线元件 - 水平部分64.其中，线性天线元件垂直部分62连接到开关40的触点40b作为电力 供应元件。
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公开(公告)号：EP1154513A1
公开(公告)日：2001-11-14
申请号：EP00939108.7
申请日：2000-06-21
发明人： ITO, Hideo , EGAWA, Kiyoshi
CPC分类号： H01Q1/38 , H01Q1/243 , H01Q1/244 , H01Q1/36 , H01Q9/0407 , H01Q9/0421 , H01Q9/28 , H01Q9/42 , H01Q21/28
摘要： Dipole antenna 12 is constructed of rectangular-wave-shaped antenna elements and the rectangular-wave-shaped antenna elements are mounted in such a way that the longitudinal direction is quasi-perpendicular to the upper surface (horizontal plane) of the radio communication terminal. A signal received by dipole antenna 12 is sent to a transmission/reception circuit via balanced/unbalanced conversion circuit 13. Here, balanced/unbalanced conversion circuit 13 minimizes the current that flows into base plate 11, thus preventing the antenna operation by base plate 11.
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