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Open Boundary Quad-Ridged Horn Antenna 蘋果糗了！iPhone 16e用自研晶片 實測這3點慘輸安卓手機
菲律賓海岸部隊表示，一艘中國大陸船隻在南海中業島附近擱淺 ，但前往救援時，該船已經離開。(圖/美聯社)
本文來自: https://www.chinatimes.com/realtimenews/20250608002915-260408
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.
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
大陸船隻在南海中業島附近擱淺 菲律賓高度戒備
菲律賓軍方官員表示，一艘大陸船隻因海上的暴風雨，而擱淺在南海有爭議的海域附近，位置在菲律賓所佔領的中業島附近，此事令菲律賓海軍與海岸防衛隊高度緊張
美聯社報導，菲律賓海軍發言人科拉多(Ellaine Rose Collado)表示，擱淺的是一艘中方漁船，軍方評估認為，該漁船似乎因惡劣天氣而在中業島以東的淺水區擱淺，菲律賓軍方和海岸警衛隊人員立即出動救援，但後來發現該船已離開。科拉多表示，目前尚不清楚其他細節，包括船員是否有受傷，船隻是否受損。
近年來，中國和菲律賓海岸防衛隊及海軍船艦在爭議海域的對抗不斷升級。
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)本文來自: https://www.chinatimes.com/realtimenews/20250608002915-260408
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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