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)
印度首次認了！ 戰機在印巴衝突中遭擊落
南亞宿敵印度、巴基斯坦於5月7日爆發近年來全球最大規模空戰，雙方共派出逾百架戰機於空中纏鬥逾1小時，巴方聲稱空戰中擊落印度戰機。一直拒絕證實有戰機損失的印度今天首度證實確有此事。印度國防參謀長邱漢（Anil Chauhan）今天證實，在這場衝突中，印方有戰機遭擊落，但拒絕說明具體數量。
根據CNN報導，印度國防參謀長邱漢今天在新加坡2025年香格里拉對話（Shangri-La Dialogue）場邊，被彭博記者問及巴基斯坦聲稱擊落「六架印度戰機」時表示「完全不正確」，但他拒絕透露印度損失了多少架戰機。
邱漢強調：「重要的是為什麼它們會墜毀，究竟犯了什麼錯誤，數字並不重要。」
本文出自: https://www.chinatimes.com/realtimenews/20250601000683-260408
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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