國際聽障運動總會(ICSD)籌劃已久的首屆世界聽障青年運動會將於今(113)年1月16日至20日在巴西聖保羅(Sao Paulo, Brazil)舉行，我代表團今(12)日舉行授旗典禮，由教育部長潘文忠親臨授旗，期勉我國聽障青年小將們能把握難得機會，在場內、場外都拿出最好的精神，與國際聽障青年選手在國際賽場上交流、學習。
本文出自: https://n.yam.com/Article/20240112817238 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.