Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)"
]
}
}
網傳影片純為師生課堂間玩笑互動 絕無欺侮行為失當 蕃新聞
本篇文章引用自此: https://n.yam.com/Article/20240308839693
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. ![創作者 periodic 的頭像]()
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網傳影片純為師生課堂間玩笑互動 絕無欺侮行為失當
大成報/
2024.03.08 11:47
(大成報記者胡昀瑄/新北報導)近日網路社群平台廣傳一則師生互動影片,指涉本市某校師生互動疑似失當,經與當事學生及教師查證後說明如下:
一、【師生感情和諧融洽,絕無學生行為失當】
經向學校瞭解,案係3年前畢業學生於課堂上與導師演戲、開玩笑、聊天互動之影片,該班學生跟老師感情非常和諧融洽,絕無網傳欺侮教師之情事。
二、【要求影片下架】
學校已完成校安通報,當事學生亦聯繫社群平台要求下架影片。
三、【持續加強法治教育】
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)本局已請學校加強學生法治教育及網路使用正確觀念,避免類案再生,以建構友善安心學習環境。
本篇文章引用自此: https://n.yam.com/Article/20240308839693
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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