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Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
韓國泡菜上半年出口量創歷史同期新高（示意圖:shutterstock/達志）
本篇文章引用自此: https://www.chinatimes.com/realtimenews/20240804002626-260408
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.
流行文化助推！韓國泡菜上半年出口量創歷史同期新高
據韓聯社報導，今年上半年韓國泡菜出口量較2023年同期增長4.8％，達到2.39萬公噸，同時創下歷年同期新高。
南韓農水產食品流通公社（aT）資訊網站4日發布的農食品出口資訊（KATI）和關稅廳進出口貿易統計結果顯示，上半年韓國泡菜出口量為2.39萬噸，較2015年的1.15萬公噸增加1倍。同期出口額為8380萬美元（約新台幣27.3億），為2021年8673萬美元以來的第2高。
就出口目的地而言，對美國出口較2023年同期增加20％至6600公噸；對荷蘭出口增加34％至1300公噸；對加拿大出口增加34％至900噸。Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)對美出口額增加18.9％至2410萬美元，創下歷史新高。
業界分析稱，戲劇和音樂韓國藝文作品在歐美地區深受歡迎，加上當地出現健康食品的風潮，推高當地消費者對發酵食品和素食的需求，韓國泡菜的出口成長趨勢預計將持續。
本篇文章引用自此: https://www.chinatimes.com/realtimenews/20240804002626-260408
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.
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