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Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
文章出自: https://n.yam.com/Article/20240723433581
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.
記者蘇凱中/宜蘭報導
有「水果千金」稱號的藝人何嘉文，偕同網紅企業家「安哥碎碎念」潘俊安等數十名網紅23日到宜蘭員山鄉，推動「從產地到餐桌」的鳳梨公益活動。
23日上午一行人戴上了斗笠和袖套，帶著鐮刀和進田裡體驗採鳳梨、紅龍果，將近二十位網紅直播主全程直播，並現場試吃。何嘉文說，父親從事水果產業，因此對各種水果不陌生，倒是第一次自己親手採鳳梨，還蠻有成就感的。
藝人何嘉文也現場做起鳳梨豆腐乳DIY直播教學。Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)何嘉文說這趟宜蘭行，來到水的故鄉，從鳳梨園、紅龍果園，到各人氣景點，她感受到員山鄉親的熱情，也體驗到在地的農事文化，真是收穫滿滿，請大家一起來支持員山的優質農特產。
網紅企業家「安哥碎碎念」潘俊安表示，住在台灣的我們很幸福，一年四季都有不同的各式水果可以吃，真的要惜福和感恩，宜蘭縣好山好水出好農產品，鳳梨果肉細緻、口感香甜中又帶點微酸，更保有傳統鳳梨果香，他和太太是特地從嘉義來到宜蘭，一起參與這場有意義的挺果農活動
縣議員黃雯如表示，自媒體行銷結合農特產是新型態的行銷模式，影響力非常強大，邀請風霈國際傳媒的張鈺凰及黃惠蘭協助，號召藝人、網紅的共同參與，促成這場公益行銷活動，透過新型態的行銷方式，強化員山農特產銷售管道，幫助農友，讓鄉內優質農特產走出家鄉，打開員山觀光產業的能見度。
文章出自: https://n.yam.com/Article/20240723433581
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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