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yacco9999鐵蟲 (初入文壇)
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[求助]
關(guān)于鐵電解質(zhì)薄膜材料的幾個(gè)問題,求大神啊。。。!
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最近跟著一個(gè)導(dǎo)師做鐵電薄膜方向的研究,還沒入門,他老人家提了幾個(gè)問題,讓我下去找。找了好久,也問了任課老師,都說不太清楚。特此發(fā)在論壇里,請(qǐng)各位大神相助,最好給出參考文獻(xiàn)。 Read the articles about ferroelectric thin films in microwave devices. a. What is a thin film? How thick is it? What is the size of a typical thin film chip (what is the area?) What are typical values for the permittivity of the film and of the substrates used? How does the permittivity vary with electric field? b.At 10 GHz, what is the wavelength of a microwave in free space? What is the wavelength in a material of permittivity 10, and a material of permittivity 100? How does wavelength depend on permittivity c. Why might it be important to measure the permittivity on length scales smaller than one wavelength? Is that likely to be difficult? 萬分感謝 |
找到一些相關(guān)的精華帖子,希望有用哦~
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