Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)"
]
}
}
桃園區表揚長青及敬老楷模 市府努力讓長者能擁有友善的環境 蕃新聞
文章出自: https://n.yam.com/Article/20231020909731The 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. ![創作者 periodic 的頭像]()
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桃園區表揚長青及敬老楷模 市府努力讓長者能擁有友善的環境
觀傳媒/
2023.10.20 20:37
(觀傳媒桃竹苗新聞)【記者曾平/桃園報導】桃園市桃園區112年長青楷模及敬老楷模表揚活動,今(20)日上午在桃園區公所舉行。副市長蘇俊賓致詞指出,表揚活動有3大主角,首先桃園人口數從過去180餘萬人,迄今已達231萬人,成長為6都之一,桃園的建設、繁榮與發展都要感謝長青楷模的貢獻;第二,全力讓桃園成為高齡友善城市的「敬老楷模」夥伴;最後則是陪同受表揚者的家屬,每位長青及敬老楷模背後都有家人的支持,才能持續貢獻社會。
蘇俊賓表示,桃園在市長張善政任內,全力推動桃園成為台灣「高齡友善城市」,尤其近年台灣人口高齡化比例逐漸提高,每100人有18至19位高齡長者,桃園相對年輕,每100人約有14至15位高齡長者,但仍期待讓高齡長者擁有友善的環境,享有更多的福利、更快樂的生活,持續貢獻社會。
聯合國高齡友善城市的重要指標包括:交通友善、醫療友善、運動友善與社區互助友善等,市府廣推敬老愛心卡,鼓勵長者多搭乘大眾運輸工具、走進運動場館。蘇俊賓說,未來市府會持續努力與中央合作,爭取通學步道、改善教育場所,讓市民獲得更多福利,讓桃園成為台灣的友善城市,桃園區也能成為桃園市高齡友善區。
蕃新聞推薦影片
文章出自: https://n.yam.com/Article/20231020909731The 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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