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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >High-Q whispering modes in empty spherical cavity resonators
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High-Q whispering modes in empty spherical cavity resonators

机译：空球腔谐振器中的高Q耳语模式

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This work presents the study of high-order modes in spherical cavity resonators. In general there are resonant mode families, degenerate in frequency, that "whisper" around the spherical surface. We call these whispering spherical (WS) mode sets. Each set includes the well-known whispering gallery (WG) mode, which propagates like a ray around the azimuth. Also, we identify a new mode, which we label the whispering longitudinal (WL) mode. This mode propagates as a wave front along the longitudinal direction. The rest of the degenerate set propagates like a combination of the WG and WL modes. We show that transverse electric WS modes have high geometric factors, greater than 2000, which increase linearly with frequency. This is an order of magnitude greater than that of a TM/sub 010/ cylindrical resonator. Also, Q-factors as high as 65,000 at 13.3 GHz were measured at room temperature.
机译：这项工作提出了球形腔谐振器中高阶模的研究。通常，在球表面周围会“耳语”，存在频率退化的共振模式族。我们称这些耳语球形（WS）模式集。每组包括众所周知的耳语画廊（WG）模式，该模式像射线一样在方位角周围传播。此外，我们确定了一个新模式，该模式标记了耳语纵向（WL）模式。该模式作为波前沿纵向传播。简并集的其余部分像WG和WL模式的组合一样传播。我们表明，横向电动WS模式具有较高的几何因子，大于2000，并且随频率线性增加。这比TM / sub 010 /圆柱谐振器大一个数量级。同样，在室温下测得的Q因子在13.3 GHz时高达65,000。

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