Horn Antenna 歐陽妮妮放話要3胎!秒被老公打槍 杭州超級豪宅曝光
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
來自: https://stars.udn.com/star/story/10089/9126373?from=udn-catehotnews_ch1022
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.
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)
曾馨瑩今天強忍悲痛,出席第三屆永齡銘馨盃決選活動。她穿著一身白色素雅套裝,哽咽為活動揭幕:「今天對我有一個特殊的意義,也帶著一點點沉重的心情,大家都知道我的婆婆星期天離開了我們...。」
她甫開口就難過到說不下去,在全場的加油聲中,曾馨瑩努力擠出笑容,承諾還是會帶著微笑站在這裡,同時也分享過去和婆婆的互動。「我的婆婆是一個非常有智慧、非常開明的人,從我第一次見到她,嫁進郭家後,她就把我當成女兒一樣,很愛我。這十幾年來,她沒有對我說過一句重話,沒有對我發過一次脾氣,她看到我永遠都只有感謝跟贊美。我有這樣的婆婆,我真的覺得非常的幸福,也非常的幸運。」
曾馨瑩遺憾表示,原本今天郭台銘也要來到現場,但臨時取消。「但是他非常支持我,希望我今天一樣能站在這裡,我相信我的婆婆也希望我帶著微笑來到現場,她現在也一定在天上看著我們,她永遠都喜歡我打扮美美的,每天都開心的過日子。」
曾馨瑩特別感謝另一半郭台銘的支持,知道跳舞對她的意義,讓她可以舉辦舞蹈活動比賽,就連婆婆也給她很多的精神上的支持,「我也要帶著她這份精神去分享更多的愛與美好,然後讓更多的溫暖分享給大家」。
她強調今天如期出席活動不是不悲傷,而是覺得有更多美好的事情應該要分享出去,也希望所有參賽者們在舞蹈的殿堂都可以發光發亮。 曾馨瑩女兒們到場力挺。記者林士傑/攝影 曾馨瑩努力擠出笑容。記者林士傑/攝影 曾馨瑩強忍悲痛為活動揭幕。記者林士傑/攝影
來自: https://stars.udn.com/star/story/10089/9126373?from=udn-catehotnews_ch1022
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.