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Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
62歲湯姆克魯斯想活到100歲！回春秘訣曝光
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
以下文章來自: https://www.chinatimes.com/realtimenews/20250520002098-260408
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.
S媽重拾笑容曬全家福！具俊曄瘦到判若兩人網友嚇壞 Horn Antenna
868MHz Antenna 新／一早熱爆！「2縣市」高溫特報
62歲的好萊塢巨星湯姆克魯斯（Tom Cruise）豪言要拍戲到100歲，並透露保持年輕的秘訣是多元運動與持續探索，而專家也指出，這樣充滿活力與好奇心的生活型態，正是許多百歲人瑞的共同特質。
《商業內幕》報導，湯姆克魯斯表示，他想一直拍電影，直到活到100歲。只要他保持現在這樣活躍與充滿好奇心，他或許真的能辦到。
這位62歲的演員，以在《不可能的任務》系列電影中挑戰腎上腺素極限的特技聞名。他在2023年曾表示，自己受到現年82歲仍持續拍戲的哈里遜福特（Harrison Ford）啟發。
以下文章來自: https://www.chinatimes.com/realtimenews/20250520002098-260408
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.
S媽重拾笑容曬全家福！具俊曄瘦到判若兩人網友嚇壞 Horn Antenna
868MHz Antenna 新／一早熱爆！「2縣市」高溫特報
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