Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)"
]
}
}
春雨淅瀝/李運秀 蕃新聞
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引用自: https://n.yam.com/Article/20240220162697
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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春雨淅瀝/李運秀
台灣好報/
2024.02.20 12:50
李運秀
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)春雨淅瀝
悄無聲息
滋潤皸裂的大地
滋養被冬摧殘的荒蕪、枯萎
於是,小草拔節
河流泛起朵朵漣漪
蝴蝶睜開了惺忪的睡眼
紅杏含苞
一枝桃花帶雨
漲紅著小臉
向人們報告春來的消息
春雨淅瀝
走過哪裏
哪里就煥發勃勃生機
每一片嫩芽
每一個新生的生命
吮吸著甘霖
悄悄地向著藍天
訴說大地母親深情的秘密
引用自: https://n.yam.com/Article/20240220162697
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.