Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
Log Periodic Antenna (LPDA)
以太幣自6月以來漲幅已達50%，突破歷史高點在即。（示意圖：shutterstock／達志）
文章來自: https://www.chinatimes.com/realtimenews/20250814003865-260408
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.
女神的腋下汗也被嫌？Jisoo演唱會40度高溫爆汗熱舞「伴舞一個小動... Outdoor Antenna
Horn Antenna 統一陽光登場台東熱氣球嘉年華 打造「陽光Chill派對」打卡新熱點！
比特幣破12.4萬美元「二哥」也衝了！突破歷史高點在即
比特幣於台灣時間週四（14日）上午8時許創下12萬4千美元的價格紀錄，幣圈俗稱「二哥」的以太幣（ETH）表現不佳，然而過去兩個月以來漲幅已近50%，本週漲幅更達10%，高點來到4788美元，距離歷史最高點4868美元僅剩一步之遙，隨著人工智慧推動區塊鏈代幣經濟、華爾街加速數位金融布局，以太幣正被視為未來十年至十五年的核心投資標的，在穩定幣監管與加密基礎建設政策的助推下，持續擴大在現實世界資產代幣化市場的領先優勢。
區塊鏈專業媒體Cointelegraph報導，市場研究與策略公司Fundstrat預測，以太幣（ETH）將成為未來10到15年「最重要的宏觀交易標的」，年底前有望上漲至1萬2000至1萬5000美元。該公司指出，隨著人工智慧在區塊鏈上創造代幣經濟，以及華爾街將金融活動轉向區塊鏈，以太幣的潛力將持續擴張。
美國一連串加密貨幣政策支持
Log Periodic Antenna (LPDA) Log Periodic Antenna (LPDA)Fundstrat資深分析師法瑞爾（Sean Farrell）表示，以太幣今年還有相當大的上漲空間，公司首席資訊官湯瑪斯·李（Thomas Lee）進一步指出，美國的《穩定幣監管法案》（GENIUSAct）以及美國證券交易委員會（SEC）的「加密計畫」（Project Crypto）將推動華爾街進一步進入數位金融時代，而大部分的穩定幣與華爾街相關專案都建立在以太坊（Ethereum）網路上。目前規模達250億美元的「現實世界資產」（RWA）代幣化市場中，以太坊占有55%市占率。
文章來自: https://www.chinatimes.com/realtimenews/20250814003865-260408
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.
女神的腋下汗也被嫌？Jisoo演唱會40度高溫爆汗熱舞「伴舞一個小動... Outdoor Antenna
Horn Antenna 統一陽光登場台東熱氣球嘉年華 打造「陽光Chill派對」打卡新熱點！