南韓忠清北道忠州市當地時間上午11點時許，一輛氫能巴士在加氫站甫充完後發生爆炸，導致3名加氫站工作人員受傷送醫，其中1人傷勢嚴重，所幸均無生命危險。忠州市已暫停所有18輛氫能巴士的營運，並著手檢查氫氣品質是否存在問題。

綜合南韓《YTN》、《KBS》電視台23日報導，這起爆炸事件發生於巴士完成加氫約10秒後，車輛後方的外殼被炸飛，一名30多歲的巴士公司員工受重傷，巴士司機與充電站工作人員也緊急送醫治療。

Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)

事故巴士原計劃前往陰城郡的現代汽車維修中心檢修，據巴士公司透露，該車在行駛中儀表板出現燃料電池零件故障代碼，爲前往檢修地點因而加氫，不料，甫加氫完後就發生爆炸。

本文出自: https://www.chinatimes.com/realtimenews/20241224004173-260408
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.