2014年開始擔任「微軟」（Microsoft）執行長的納德拉（Satya Nadella），是全球最成功的印度裔指標人物之一。現年54歲納德拉與妻子育有1子2女，然而近來卻驚傳他兒子扎因（Zain Nadella）去世，得年25歲。對此，微軟公司也證實了這項消息。

據《今日美國》（USA Today）報導，微軟公司1日證實，扎因於近日辭世，同時表達遺憾之情，並透露納德拉一家正為此慟悼。1996年8月13日出生的扎因，誕生時就是腦性麻痺患者，不但痙攣性四肢麻痺且是法定盲（legally blind）。2021年，納德拉家人捐贈1500萬元美金（約4億1497萬5千元新台幣）給西雅圖兒童醫院，希望可以造福更多病童。

納德拉曾分享，扎因是家中歡樂來源，兒子以力量與溫暖激勵他，使他不斷突破科技極限，「成為特殊需求者的父親是我生命轉機，他塑造了今天的我」。納德拉認為，自己因兒子而容易理解殘疾者生活，亦讓他更重視同理心。這也是為何他堅持與微軟同仁，將愛、慈悲心結合人類創造力產生實際影響。

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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.
In terms of its specification, a typical log periodic antenna might provide between 3 and 6 dB gain over dipole for a bandwidth of 2:1 while retaining a VSWR level of better than 1.3:1. 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.

EMC/EMI pre-compliance test antenna.
Very high gain over the full frequency range.
 Meets latest EMC standards up to 7GHz.
Suitable even for immunity measurements