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.
告五人征服日本啦！霸氣發音遭虧爆「下一秒就拔刀」 Horn 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.
告五人征服日本啦！霸氣發音遭虧爆「下一秒就拔刀」 Horn Antenna