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    • 68. 发明公开
    • Planar antenna structure and radio device
    • 平面Antennenstruktur undFunkgerät
    • EP1439602A1
    • 2004-07-21
    • EP04396002.0
    • 2004-01-09
    • Filtronic LK Oy
    • Mikkola, Jyrki
    • H01Q1/24H01Q5/00H01Q9/04
    • H01Q9/0421H01Q1/243H01Q1/38H01Q5/335H01Q9/0414H01Q9/0442H01Q9/0457H01Q19/005
    • A planar antenna structure intended to be used in small portable radio devices and a radio device using an antenna structure according to the invention. The radiating element (340) of the antenna is a conductive part in the cover of the radio device or a conductive coating attached to the cover. The radiating element is fed electromagnetically by a parallel planar feed element (330) connected to the antenna port and located near the radiating element, between it and the ground plane (310). Between the feed element and antenna port there is a feed circuit (320) to provide matching for the antenna and, if necessary, forming an additional operating band. The radiating element need not be shaped to set the resonating frequencies or match the antenna. Instead, it can be designed relatively freely, based on the desired external appearance of the device, for example. Moreover the antenna requires relatively little space within the device.
    • 旨在用于小型便携式无线电设备的平面天线结构和使用根据本发明的天线结构的无线电设备。 天线的辐射元件(340)是无线电设备的盖中的导电部分或附着到盖的导电涂层。 辐射元件由连接到天线端口的平行平面馈电元件(330)进行电磁馈送,并位于辐射元件之间,其与接地平面(310)之间。 在进料元件和天线端口之间有一个馈电电路(320),用于提供对于天线的匹配,并且如果需要,形成额外的工作频带。 辐射元件不需要被设置成设定谐振频率或匹配天线。 相反,可以基于例如设备的期望外观相对自由地设计。 此外,天线在设备内需要相对较小的空间。