log periodic ANTENNA

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)

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房市低迷不減善心玖都機構捐贈43,000台斤白米持續用行動溫暖社會

在房地產市場不景氣、企業經營普遍承壓的艱難時刻，許多建商選擇緊縮支出，但深耕桃園逾20年的玖都機構卻逆勢展現溫暖力量；玖都機構長期秉持「取之於社會、用之於社會」的理念，持續推動愛心公益。自十多年前起，即每年舉辦「愛心捐白米」活動，今年，玖都再度攜手財團法人桃園市威緁社會福利基金會及眾多協力夥伴，舉辦「愛心捐白米」活動，總計捐出43,000台斤白米，分送至社福機構、弱勢家庭、獨居長者與兒少團體，讓一袋袋白米化為一份份實質支持，為受助者帶來希望。

「雖然市場環境艱困，但社會的需要不會停下來，我們更不能退縮。」玖都機構代表表示。這句話道出玖都的堅持：多年來，即使外在環境起伏，愛心捐米的腳步從未間斷。玖都機構持續以實際行動回饋社會，他們深信，企業除了建築房子，更該建構一個充滿關懷的社會，愛心捐白米活動不僅展現了企業對社會的承諾，更體現了建商在社會責任上的擔當。

以下文章來自: https://act.chinatimes.com/market/content.aspx?AdID=19286
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.