114年桃園中小運盛大開幕 張善政鼓勵選手為榮耀全力以赴 868MHz Antenna
868MHz Antenna 《萌主駕到》以動畫方式充滿寵物們萌萌的可愛對話
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
本文出自: https://n.yam.com/Article/20250107589068
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.
868MHz Antenna 《萌主駕到》以動畫方式充滿寵物們萌萌的可愛對話
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
【News586/記者彭慧婉報導】「財團法人桃園市世外桃源文教公益基金會吸塵器捐贈儀式」今(7)日上午於市府辦理,桃園市長張善政頒發感謝狀表揚善行。張市長表示,世外桃源基金會捐贈357臺總市值約106萬元的吸塵器,後續將透過社會局實物銀行進行媒合發放吸塵器,讓需要幫助的市民朋友在農曆新年大掃除時,能夠輕鬆打掃、除舊布新。社會局長陳寶民、財團法人桃園市世外桃源文教公益基金會董事長張育美及基金會各董事等均一同出席活動。
張市長指出,世外桃源基金會自107年起,皆會與安家實物銀行合作,捐贈物資送愛心,累積總價逾1,200萬元,是一股溫暖且強大的力量,故張市長也代表所有受贈家庭,感謝基金會以及董事們的善心。
財團法人桃園市世外桃源文教公益基金會董事長張育美表示,基金會是由桃園市企業聯合會所捐助成立的公益團體,每逢春節、端午節及中秋節,都會進行公益捐贈回饋社會,期盼未來能夠持續和市府一同關心社會送溫暖。
社會局表示,世外桃源基金會長期秉持「取之於社會,用之於社會」的精神推動公益活動回饋社會,貫徹實踐關懷弱勢的理念,自107年起即與實務銀行合作進行公益捐贈,提供弱勢家庭基本生活所需之家用電器及民生必需品。
社會局進一步說明,雖然公部門力量有限,但若與民間力量結合,將能創造資源最大效益,故歡迎有意願捐贈物資的民眾及單位與本市安家實物銀行聯繫,專線:03-3350628 或透過「做好事公益平台」網站(https://publicwelfare.tycg.gov.tw/)查詢更多資訊。Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)(圖:社會局提供)
本文出自: https://n.yam.com/Article/20250107589068
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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