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公开(公告)号：EP0814536A2
公开(公告)日：1997-12-29
申请号：EP96118810
申请日：1996-11-23
申请人： YOKOWO SEISAKUSHO KK
发明人： YANAGISAWA WASUKE , HORIE RYO , KAWAHARA TAKAO , OSHIYAMA TADASHI
CPC分类号： H01Q9/42 , H01Q1/242 , H01Q1/244 , H01Q1/36 , H01Q1/38 , H01Q5/321 , H01Q5/357 , H01Q5/378 , H01Q5/392
摘要： The antenna element (1) of a long conductor is formed with at least one returned portion (1a) arranged substantially in parallel to a longitudinal direction of the antenna element. In practice, a physical length of the antenna element in the longitudinal direction is determined to such a length as to be substantially resonated in a first frequency band, and the at least one returned portion (1a) is formed in such a way as to be resonated in a second frequency band twice higher than the first frequency band on the basis of an electric coupling with the adjacent antenna element. Further, the antenna can be constructed in such a way that: an antenna element (1) of a long conductor is formed with at least one returned portion arranged substantially in parallel to a longitudinal direction of the antenna element in such a way that an electrical length thereof is substantially 3/4 wavelength of a frequency band of transmitted and received signals; and at least half element (213) of an electrical length of substantially 1/4 wavelength of the frequency band beginning from an end portion of the antenna element on a side opposite to a feeder portion (30) side is formed as an extended antenna piece extending substantially in non-parallel to the substantially parallel-formed antenna elements (211, 212).
摘要翻译： 长导体的天线元件（1）形成有至少一个平行于天线元件的纵向方向布置的返回部分（1a）。 实际上，天线元件沿纵向方向的物理长度被确定为在第一频带中基本上共振的长度，并且至少一个返回部分（1a）形成为 基于与相邻天线元件的电耦合，在比第一频带高两倍的第二频带中谐振。 此外，天线可以以如下方式构造：长导体的天线元件（1）形成有至少一个返回部分，其基本上平行于天线元件的纵向方向布置，使得电气 其长度基本上是发射和接收信号的频带的3/4波长; 并且从天线元件的与馈送部（30）侧相反的一侧的端部开始的基本上为波长1/4波长的电长度的至少一半元件（213）形成为延伸天线片 基本上平行于基本上平行形成的天线元件（211,212）延伸。
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公开(公告)号：EP1387433A4
公开(公告)日：2005-04-27
申请号：EP02720520
申请日：2002-04-19
申请人： YOKOWO SEISAKUSHO KK
CPC分类号： H01Q21/30 , H01Q5/371 , H01Q9/0407 , H01Q9/0421
摘要： The present invention provides a broad-band antenna for mobile communication in which a desired antenna characteristic is obtained in plural frequency bands of a portable phone or the like. A metal plate 16 having a suitable shape is disposed on an upper surface of a carrier 14 provided on a circuit board 10, and a first and a second antenna elements functioning as inverted-F antennas respectively resonant at a first frequency band and a second frequency band higher than the former are formed by electrically connecting the metal plate 16 to a grounding plate 12 and the circuit board 10 by an earthing terminal 18 and a feed terminal 20, respectively. A third antenna element 24 having a base end electrically connected to the feed terminal 20 and resonant at a third frequency band higher than the second frequency band is provided on a side surface of the carrier 14, ends of the second antenna element and the third antenna element 24 are disposed to be spaced from each other by a distance of 0.1 wavelength or more of the third frequency band, and the end of the third antenna element 24 is disposed to be spaced from the grounding plate 12 by a distance of 0.01 wavelength or more of the third frequency band. Besides, the third antenna element may be made resonant at a fourth frequency band higher than the third frequency band, and a matching circuit to perform matching for the third frequency band may be provided.
摘要翻译： 本发明提供一种用于移动通信的宽带天线，其中在便携式电话机等的多个频带中获得期望的天线特性。 具有合适形状的金属板16设置在设置在电路板10上的载体14的上表面上，并且用作倒F天线的第一和第二天线元件分别在第一频带和第二频率 分别通过接地端子18和馈电端子20将金属板16电连接到接地板12和电路板10而形成高于前者的带。 具有与馈电端子20电连接并在比第二频带高的第三频带谐振的第三天线元件24设置在载体14的侧表面上，第二天线元件和第三天线的端部 元件24被设置为彼此间隔0.1秒或更多的第三频带的距离，并且第三天线元件24的端部设置成与接地板12间隔0.01个波长的距离或 更多的是第三个频段。 此外，第三天线元件可以在比第三频带高的第四频带处共振，并且可以提供用于执行第三频带的匹配的匹配电路。
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