英國王儲夫婦威廉與凱特的女兒夏綠蒂公主（Princess Charlotte）昨天（2日）10歲生日，肯辛頓宮發布了一張由凱特拍攝的夏綠蒂近照，許多網友都覺得她長得超像父親威廉，也有人覺得她神似已故的祖母黛安娜王妃，還有人主張她不僅遺傳了曾祖母、已故女王伊莉莎白二世的容貌，個性也如出一轍。

Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)

綜合英國《快報》、《每日郵報》、《柯夢波丹》雜誌等媒體2日報導，肯辛頓宮（Kensington Palace）在夏綠蒂當天在社群平台官方帳號發布了她的近照，祝賀「夏綠蒂公主，10歲生日快樂！」，附帶一枚照相機圖案與「威爾斯王妃」的字樣，代表照片由威爾斯王妃凱特拍攝。英國王位繼承順序規定2013年修改之後不再以男性繼承人優先，夏綠蒂公主目前是英國王位第三順位繼承人。

據悉這張照片是凱特以手機拍攝，場景應是最近一家人同赴英格蘭西北部的坎布里亞（Cumbria）健行途中。夏綠蒂在野地隨意一坐，對著鏡頭而笑，神情無憂無慮。她一身登山健行裝扮，迷彩圖案上衣搭配深藍色牛仔褲，背著雙肩背包，馬尾髮型有些鬆散凌亂。這張照片也意味凱特病後恢復王室公務行程之餘，重拾了拍照的習慣。

本文來自: https://www.chinatimes.com/realtimenews/20250503003340-260408
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.
915MHz Antenna 韓國仁川在台觀光中心升級至2.0版更機動前往更多城市 仁川的炸雞啤酒節將於５月底舉行