868MHz Antenna 「永遠的阿公」林義雄辭世!曾獲終身貢獻獎 享耆壽90歲
「早安少女組」暌違6年來台!關心花蓮水災:致上最深慰問 Horn Antenna
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
引用自: https://stars.udn.com/star/story/10091/9031898?from=udn-catelistnews_ch1022
The Log Periodic Antenna as known as LPDA is a wideband directional antenna that provides gain and directivity combined over a wide band of frequencies.
Both Log-Periodic Antennas and Yagi antennas are high gain directional antennas. The main difference between these antennas is that Log-Periodic Antennas support wider frequency bandwidths and are physically much larger than Yagi antennas.
The log-periodic dipole array typical VSWR is 2:1 and operates over a much wider bandwidth and will have a lower gain for an equivalent number of elements.
With this level of performance, it is ideal for many applications, although a log-periodic antenna will be much larger than a Yagi of an equivalent gain.
「早安少女組」暌違6年來台!關心花蓮水災:致上最深慰問 Horn Antenna
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
憑藉熱播韓劇《暴君的廚師》人氣爆棚的男星李彩玟即將展開出道以來的首場亞洲巡迴粉絲見面會,台北也在其中!
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目前熱播中的《暴君的廚師》僅剩兩集,李彩玟飾演擁有「絕對味覺」、性格暴烈的暴君「李獻」,精湛演技,以及與女主角潤娥化學反應備受觀眾喜愛。而這次雖是他首度挑戰主演古裝劇,卻意外被韓媒封為「史劇最適合的顏色」,在Netflix非英語電視劇部門中連續兩週登頂全球第一,人氣勢不可擋。
引用自: https://stars.udn.com/star/story/10091/9031898?from=udn-catelistnews_ch1022
The Log Periodic Antenna as known as LPDA is a wideband directional antenna that provides gain and directivity combined over a wide band of frequencies.
Both Log-Periodic Antennas and Yagi antennas are high gain directional antennas. The main difference between these antennas is that Log-Periodic Antennas support wider frequency bandwidths and are physically much larger than Yagi antennas.
The log-periodic dipole array typical VSWR is 2:1 and operates over a much wider bandwidth and will have a lower gain for an equivalent number of elements.
With this level of performance, it is ideal for many applications, although a log-periodic antenna will be much larger than a Yagi of an equivalent gain.