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公开(公告)号：US5517676A
公开(公告)日：1996-05-14
申请号：US996168
申请日：1992-12-23
申请人： Syuichi Sekine , Tadahiko Maeda
发明人： Syuichi Sekine , Tadahiko Maeda
摘要： A portable radio and telephone equipment for transmitting and receiving an electric wave. The portable radio and telephone equipment includes: an antenna for transmitting and receiving an electromagnetic wave; a housing connected to the antenna, having a notch therein; and an internal circuit, connected to the antenna by way of the housing, for generating and receiving the electromagnetic wave. The portable radio and telephone equipment includes: an antenna for transmitting and receiving an electromagnetic wave; an upper portion of a housing connected to the antenna; and a lower portion of a housing connected to the upper portion of the housing via a conductor wire, so that the housing is divided into two portions in order to vary distribution pattern of the electromagnetic wave.
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公开(公告)号：US06701167B2
公开(公告)日：2004-03-02
申请号：US09777911
申请日：2001-02-07
申请人： Noriaki Odachi , Syuichi Sekine
发明人： Noriaki Odachi , Syuichi Sekine
IPC分类号： H04B138
摘要： A portable radio terminal comprises a housing, a radio circuit included in the housing, a matching circuit mounted on the top of the housing at a position which is offset from the longitudinal center line of the housing, a load connected to the tip of the matching circuit, and a linear antenna connected to the load. This portable radio terminal further comprises load changing means for changing the value of the load. The matching circuit may comprise a meander matching element, a zigzag-shaped matching element, a helical matching element, a conical matching element, a rectangular helical matching element or a pyramid helical matching element which are formed so as to a predetermined shape, such as a meander shape, a zigzag shape, a helical shape, a conical shape, a rectangular helical shape or pyramid helical shape. Thus, even if the terminal is held in a user's left or right hand, it is possible to increase the quantity of radiation of vertically polarized waves, so that it is possible to provide the optimum antenna construction to carry out good radio communication.
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公开(公告)号：US6147652A
公开(公告)日：2000-11-14
申请号：US156868
申请日：1998-09-18
申请人： Syuichi Sekine
发明人： Syuichi Sekine
CPC分类号： H01Q1/36 , H01Q1/243 , H01Q1/38 , H01Q9/0421 , H01Q9/42
摘要： An antenna apparatus includes a rectangular conductor plate having a longitudinal length of one fourth the wavelength of a signal having an operating frequency and a line-shaped inverted F antenna mounted thereon. The line-shaped inverted F antenna is disposed at one end in the longitudinal direction of the conductor plate so as to be perpendicular to the longitudinal sides of the conductor plate.
摘要翻译： 天线装置包括矩形导体板，该矩形导体板具有安装在其上的具有工作频率的信号的波长的四分之一和线形倒F天线的纵向长度。 线状倒F天线沿导体板的纵向一端设置成垂直于导体板的纵向侧。
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