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Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)"
]
}
}
影/《MLB》張育成發布復原好消息 復健熱身賽直接開轟啦! | 蕃新聞
文章來自: https://n.yam.com/Article/20240417472388
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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Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
影/《MLB》張育成發布復原好消息 復健熱身賽直接開轟啦!
新頭條/
2024.04.17 15:21
體育中心/綜合報導
效力美國職棒(MLB)坦帕灣光芒的旅美台灣好手張育成，熱身賽期間揮棒造成左復斜肌受傷，隨後進入傷兵名單，因而錯過競爭大聯盟開季名單的機會。經過六週的積極治療和復健，16日張育成在個人臉書宣布傷癒復出的好消息。表示傷勢已經沒有大礙，可以開始打復健賽，會用最快的速度回到球場，貼文也附上復健訓練期間的影片。幾個小時後更在留言處，貼出熱身賽開轟的影片，令球迷們相當振奮。
張育成在個人臉書貼文如下:
經過6週的積極治療、復健、訓練
傷勢已無大礙要開始打復健賽了
接下來我一樣會拼勁全力
一步一步來 用最快的速度回到球場這陣子
謝謝來自各方球迷朋友的關心與祝福
網友們也在留言處為張育成加油，「等你回MLB,我買愛爾達電視一年約就是要看你的比賽，加油啦」，「加油，光芒的內野有機會回來」，「快回來啊！想在大聯盟看到你！」
2月29日張育成在大聯盟春訓熱身賽受傷後，球隊將他放到小聯盟養傷。從貼出的影片中看出張育成積極復健及訓練的樣子，如今終於能夠再次回到球場比賽。留言處的開轟影片，是該場比賽的第二打席，擊出一發左外野方向的全壘打。張育成用全壘打回應了球迷們的鼓勵，期待他再次拼回MLB賽場。
文章來自: https://n.yam.com/Article/20240417472388
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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