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)
4輛昂貴的超級跑車，包括法拉利812、法拉利F70、 麥拉倫 Elva 、與賓利歐陸GTC撞成一團。(圖/Reddit)
本篇文章引用自此: https://www.chinatimes.com/realtimenews/20241201003095-260408
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.
翟浚安闖「星光」超亮眼 鳳梨酥外交解鄉愁 915MHz Antenna
天價連環車禍！法拉利、麥拉倫、賓利4車追撞 總價破2.5億
街上的豪華昂貴名車，常常是用路人最怕遇到的麻煩，因為稍微一點磕碰，就要被索取高昂的維修費。那要是一堆昂貴名車撞成一團，那一定很驚人吧！奧地利山區就發生這種事，兩輛法拉利(Ferrari)、一輛麥拉倫(McLaren)和一輛賓利(Bentley )在山路上連環追撞，總價值達到600萬英鎊(約2.5億新台幣)，被稱為「今年最昂貴的車禍」。
每日郵報(Dailymail)報導，這起事件於11月10日發生在奧地利提洛邦 (Tirol)普豐德斯(Pfunds)附近的一條山路上，一輛價值44.7萬英鎊(約1846萬新台幣)的法拉利812 Superfast與一輛價值400萬英鎊(約1.6億新台幣)的法拉利F70(LaFerrari F70、F150)追撞。
據報道，法拉利 Superfast本來在法拉利F70 後面，但是在下午 2 點 40 分左右，在公路的急彎處發生碰撞。由於車速都很快，原本的2車碰撞引發了連鎖反應，在 F70後方的的一輛價值140 萬英鎊(約5700萬新台幣)的麥拉倫 Elva ，隨後也撞上了兩輛車，混亂升級。
本篇文章引用自此: https://www.chinatimes.com/realtimenews/20241201003095-260408
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.
翟浚安闖「星光」超亮眼 鳳梨酥外交解鄉愁 915MHz Antenna