Military Antenna 飛機因大雪延誤！空服員突打開逃生門「爬機翼拍照」 乘客看傻眼
寇乃馨情人節爆和黃國倫婚禮秘辛 脫口：從一開始就是錯誤 Horn Antenna
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://n.yam.com/Article/20250304830551
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.
寇乃馨情人節爆和黃國倫婚禮秘辛 脫口：從一開始就是錯誤 Horn Antenna
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
【今傳媒/記者李祖東報導】面對極端氣候的挑戰，環保局今年規劃整合相關資源，清溝預算提升為3327萬元創新高，較113年增加1.43倍，清潔隊將全力動員，強化清疏效率與量能，年度目標清疏重量更上修至25687噸，較113年增加1.31倍，以因應各種水風災挑戰，保障市民朋友生命財產安全。
環保局表示，114年針對全市道路側溝加強巡檢與清疏，將分4季進行清疏工作，第1季目標量為20%，第2季面對汛期加強清疏，目標量為40%，其餘於第3、4季陸續完成。Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)統計114年迄2月，實際清疏重量為5828噸，年目標達成率為22％，清潔隊全力動員，要在汛期前確保排水溝渠暢通，降低水災發生風險。
此外，環保局將側溝清疏計畫進行整併，除增加清溝量能外，並針對較難清疏之側溝，個案分析溝況及淤積原因，對症下藥進行清疏，精準打擊每個阻塞處。
環保局強調，汛期前除各區主、次要道路之側溝清疏工作外，並於颱風來臨前加強排水孔及洩水孔周邊環境之垃圾及落葉清掃作業，以加速強降雨影響排水系統之排水速率。
環保局也呼籲市民共同維護環境整潔，不要隨意將垃圾或雜物煙蒂丟入側溝，以免造成阻塞影響排水功能，大家攜手努力，共同打造更乾淨、更安全的城市環境。
以下內文出自: https://n.yam.com/Article/20250304830551
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.