李沛旭變粗壯筋肉人 現階段「只求平安」 Horn Antenna
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
以下內文出自: https://stars.udn.com/star/story/10091/9238138
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)
出道22年的金曲歌王JJ林俊傑，29日忽然在社群平台公開認愛，間接承認與24歲廣東網紅「七七」（Annalisa）熱戀ing，引發網路熱議。事隔2天，JJ於2025年最後一天再度發聲，針對巡演告一段落發表長文，也被視為公開戀情後的最新發言。
JJ坦言，2025年除了音樂里程碑，也帶來不少考驗，面對舞台之外的討論，他語重心長說：「我在舞台之外的生活，音樂被侵入性的審查和刻意冒犯。當我的團隊在驗證一些事件時，我一直保持不清，結果這是預謀和協調的抹黑活動。虛假敘述傳播，台詞交叉，對我愛的人和我自己造成傷害，包括站在我身邊的粉絲。很遺憾，由於這場混亂，我無法自由地與我的朋友和粉絲分享生活近況。」
他還說：「不管怎樣，我很感恩現在的我有更多的清楚，也想提醒每一位真心關心我的朋友，當面對網路上情緒上帶來的討論與分裂的敘述時，請保持清楚的頭腦，不必被困在別人寫的故事裡。我們可以選擇向前走，我想對自己說，也對每個人儘管掙扎仍然勇往直前，願我們永遠不會忘記自己是怎麼走過來的，並且保持溫柔善良。願我們都能學會遠離毫無意義的網絡耗盡，守護內心的平靜與穩定，把能量放在真正重要的地方，好好照自己，過好每一天。新的一年，新的開始。新年快樂！」 林俊傑（右二）日前發表幫媽媽慶生照。圖／摘自IG
以下內文出自: https://stars.udn.com/star/story/10091/9238138
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.