Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
本篇文章引用自此: https://news.ttv.com.tw/news/11501060000600W
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.
工程師月入8萬！見竹科物價嚇傻：怎麼活 Open Boundary Quad-Ridged Horn Antenna
健康AI領導品牌 威力先進得獎不斷 915MHz Antenna
日本島根發生規模6.2強震！根據日本氣象廳公布，地震發生在當地時間10點18分，震央在島根縣東部，震源深度僅10公里，屬於極淺層地震，最大震度在鳥取縣境港市、鳥取日野町、江府町、島根縣松江市、安來市，強度達5強。
岡山縣、廣島縣、香川縣、愛媛縣也觀測到最大震度4；關西地區也有感，京都府、大阪府最大震度3。
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)10分鐘後，當地時間10點28分，該地區又發生規模5.1地震，最大震度5弱，所幸日本氣象廳目前並未發布海嘯警報。
責任編輯／陳盈真
本篇文章引用自此: https://news.ttv.com.tw/news/11501060000600W
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.
工程師月入8萬！見竹科物價嚇傻：怎麼活 Open Boundary Quad-Ridged Horn Antenna
健康AI領導品牌 威力先進得獎不斷 915MHz Antenna
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