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发明名称
平面式多方向性天线结构
摘要
本创作系有关于一种平面式多方向性天线结构改良,用于接收电视VHF及UHF频段。其主要系以对称方式将天线设计在电路板双层,该天线的电流路径系布满电路板四周,而能平放激发产生多方向性的接收场型。中间并藉由铁片架高,可以避免双层中间汇流处的电流耦合,且能利用空气介质来克服电路板的介质损耗,至于本创作之电路板背面系设有贴片(SMD)式电感及电容,而能增加天线的接收波长,使天线的接收模态落在VHF低频部份,尤其在天线馈入端设有绕铁芯,具有阻抗转换的功能。
申请公布号
TWM366181
申请公布日期
2009.10.01
申请号
TW098209048
申请日期
2009.05.22
申请人
张明温
发明人
张明温
分类号
H01Q3/22
主分类号
H01Q3/22
代理机构
代理人
主权项
一种平面式多方向性天线结构,主要系由外盒及电路板所组成,其特征在于:该电路板中央系设有一铁片,并由每一铁片之弯折端连结延伸有数条天线,且在天线馈入端设置有一绕铁芯做为阻抗转换;至于电路板之另一面系设置贴片式电感及电容,除增加天线的接收波长,并使天线的接收落在VHF低频部份。
地址
台南市中西区庆中街98号
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