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首页> 外文期刊>IEEE Transactions on Microwave Theory and Techniques >A low-impedance coplanar waveguide using an SrTiO/sub 3/ thin film for GaAs power MMIC's
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A low-impedance coplanar waveguide using an SrTiO/sub 3/ thin film for GaAs power MMIC's

机译:使用SrTiO / sub 3 /薄膜的GaAs功率MMIC的低阻抗共面波导

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摘要

A novel structure for coplanar-waveguide transmission lines with low impedance and low loss is demonstrated in this paper. The new structure simply has a high dielectric SrTiO/sub 3/ thin film underneath the coplanar conductors. Due to the high dielectric constant of SrTiO/sub 3/, the coplanar line exhibited characteristic impedance as low as 18 /spl Omega/ with a slot width of 5 /spl mu/m and the center conductor width of 50 /spl mu/m, while a conventional coplanar line on GaAs showed only 30 /spl Omega/ with the same configuration. The newly developed coplanar structure is easily applicable for present GaAs monolithic-microwave integrated-circuit (MMIC) technology, especially for power MMIC's and low-impedance devices.
机译:本文介绍了一种低阻抗,低损耗的共面波导传输线的新型结构。新结构只是在共面导体下具有高介电常数的SrTiO / sub 3 /薄膜。由于SrTiO / sub 3 /的高介电常数,共面线的特征阻抗低至18 / spl Omega /,缝隙宽度为5 / spl mu / m,中心导体宽度为50 / spl mu / m。 ,而传统的GaAs共面线显示只有30 / spl Omega /具有相同的配置。新开发的共面结构很容易适用于当前的GaAs单片微波集成电路(MMIC)技术,尤其是功率MMIC和低阻抗器件。

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