88歲天主教教宗方濟各（Pope Francis）因呼吸道感染住院，後惡化為雙側肺炎，至今已住院治療超過一個月，期間梵蒂岡幾度證實教宗病況危急，近期病況趨穩。梵蒂岡昨（16）日公開教宗住院後的首張照片，畫面顯示他呼吸並未受到輔助，似乎可自主呼吸。這也是教宗住院以來首度主持彌撒，顯示身體狀況大有改善。

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

首張照片不見輔助呼吸

綜合CNN、路透社報導，梵蒂岡昨日公布教宗方濟各住院以來的首張照片，照片顯示方濟各穿著聖衣、披掛聖帶，他背對著鏡頭坐在羅馬傑梅利醫院（Gemelli Hospital）的小聖堂內，畫面中未見輔助呼吸的設備，顯示方濟各似乎可自主呼吸。

方濟各2月14日因嚴重呼吸道感染被送往羅馬傑梅利醫院治療，後續病情惡化為多重微生物感染及雙側肺炎，甚至一度出現輕度腎衰竭跡象，讓教廷幾度坦承教宗病況危急，不過醫療團隊的治療發揮作用，近2周來方濟各病情趨於穩定並持續改善，教廷至今尚未公告方濟各的出院日期，僅表示他緩慢地逐步康復。

文章出自: https://www.chinatimes.com/realtimenews/20250317001402-260408
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.