“log-periodic antenna”的概念、定义、翻译、参考文献-科学参考

单词	log-periodic antenna
释义	log-periodic antenna [`läg ´pir·ē¦ad·ik an`ten·ǝ] ^{ELECTROMAGNETISM} A broad-band antenna which consists of a sheet of metal with two wedge-shaped cutouts, each with teeth cut into its radii along circular arcs; characteristics are repeated at a number of frequencies that are equally spaced on a logarithmic scale.
随便看	nomenclature plate nomen dubium nomen nudum nominal band nominal bandwidth nominal decline rate nominal diameter nominal impedance nominal line pitch nominal line width nominal pass-band center frequency nominal scale measurement nominal size nominal stress nominal value nomogram nomograph nonacosane nonacoustic coupler nonadecane nonagon nonambiguity nonanal nonane nonanticipatory system

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