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Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
搶跟大谷翔平吃貨 御飯糰狂銷300萬個 甜甜圈賣到缺貨
美國職棒大聯盟洛杉磯道奇隊日本球員大谷翔平，近日隨隊回日本比賽，再掀一股大谷熱。昨天（14日）他在練球後，於社群媒體限時動態上傳一盒Mister Donut甜甜圈，立即引發熱議，網友好奇問:「大谷君吃這個嗎?」，有人稱：「難以想像在這時候吃這個」，更有人跑去Mr.Donut，發現竟已缺貨。
大谷翔平曬出的甜甜圈外帶盒內有草莓、波提和巧克力等大眾熟悉的甜甜圈口味。Mister Donut在日本有上千家分店，海外據點包括台灣、泰國、菲律賓、新加坡和印尼，但是未拓展到大谷現居的美國，《日刊體育》報導指出，大谷享用了在美國沒開店的Mister Donut。有網友問大谷:「是不是快拍Mister Donut的廣告了？」
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)大谷的魅力很直接反映在他代言的眾多商品銷售數字，他也是日本全家便利商品御飯糰的廣告明星。日本全家12日宣布自本月4日起推出的「御飯糰二刀流、解禁」活動，在約1萬6300家店舖，賣出全壘打級銷售額。
本篇文章引用自此: https://www.chinatimes.com/realtimenews/20250315001001-260408
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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