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)

曹西平昨晚在家中猝逝,享壽66歲,他生前和曹家兄弟決裂,警方通知曹西平兄長,但兄長卻表達不願處理曹西平後事,剛曹西平乾兒子Jeremy發出聲明,表示曹西平是睡著離開,無病無痛,但因為他和曹西平並非法定的父子關係,所以無法處理後事,他悲喊「明明我是最親的兒子,最後還要公告招領」,看來曹西平身後事似乎陷入僵局。

以下為聲明全文:



本文出自: https://stars.udn.com/star/story/10088/9234056?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.

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