unidirectional log-periodic antenna

[¦yü·nə·də′rek·shən·əl ′läg ‚pir·ē′äd·ik an′ten·ə] (electromagnetism) A broad-band antenna in which the cut-out portions of a log-periodic antenna are mounted at an angle to each other, to give a unidirectional radiation pattern in which the major radiation is in the backward direction, off the apex of the antenna; impedance is essentially constant for all frequencies, as is the radiation pattern.

单词	unidirectional log-periodic antenna
释义	unidirectional log-periodic antenna unidirectional log-periodic antenna [¦yü·nə·də′rek·shən·əl ′läg ‚pir·ē′äd·ik an′ten·ə] (electromagnetism) A broad-band antenna in which the cut-out portions of a log-periodic antenna are mounted at an angle to each other, to give a unidirectional radiation pattern in which the major radiation is in the backward direction, off the apex of the antenna; impedance is essentially constant for all frequencies, as is the radiation pattern.
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