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第二部分 电波传播基本概念 PowerPoint PPT Presentation


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第二部分 电波传播基本概念. 电波传播历史与发展. 无线电波传播研究的 主要内容 是电磁波与传播媒质的相互作用及其在有关电子系统工程和环境探测中的应用。它是一门 实验性 科学。. 典型的实验 : 德国 Hertz 于1885-1889年间,进行了一系列UHF波段的电波传播试验,产生了电磁波(称为Hertz波)。 Hertz测定了Hertz的波长和传播速度,证明了反射、折射特性和光一样,证明了光是电磁波. 赫兹实验示意图. 无线电真正实验产生了。. 1901年12月12日, 马可尼 成功进行了跨大西洋 通信实验 ,距离2000英里。

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第二部分 电波传播基本概念

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  • Hertz1885-1889UHFHertzHertzHertz


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  • 190112122000


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  • 1899SommerfieldZenneckZenneck

  • 1902KennellyHeavisideAppletonBarnett1925BrietTuve19261926-1945

  • 19361945

  • 1934-1946

  • 1945-1960


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  • 1945Clarke1957

  • 1965COMSATEARLY BIRD


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