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)
喬治亞州共和黨眾議員泰勒格林是極端的川普捍衛者，她在市民大會的發言引發民眾的憤怒。(圖/美聯社)
引用自: https://www.chinatimes.com/realtimenews/20250416005197-260408
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.
地勤「猛力拋出行李箱」！重摔落地畫面全都錄 廉航揪出真兇急道歉 Military Antenna
紅州選民對川普失望 要共和黨議員「遏止獨裁者」
川普主張的節約聯邦預算改革，正在影響選民的觀感。好幾個共和黨優勢的「紅州」選民，在難市民大會上怒斥傾聽民意的共和黨國會議員，過程絲毫不留情面，甚至爆發衝突，警衛動用電擊槍，把憤怒的民眾抬出會場。這讓我們看到部分選民對川普的全面改革已愈發不滿，但儘管如此，共和黨議員仍然選擇效忠川普。
CNN報導，在愛荷華州(IOWA)，參議員葛雷斯利(Chuck" Grassley)多次被民眾要求起身反對川普，保護民眾的權益。
一名男子問格拉斯利：「我們想知道，作為民意代表，作為國會監督者，你們應該如何遏制這個獨裁者，你們將採取怎樣的措施？」
引用自: https://www.chinatimes.com/realtimenews/20250416005197-260408
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.
地勤「猛力拋出行李箱」！重摔落地畫面全都錄 廉航揪出真兇急道歉 Military Antenna