Reactive Energies, Impedance, and ${\rm Q}$ Factor of Radiating Structures
Reactive Energies, Impedance, and ${\rm Q}$ Factor of Radiating Structures
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辐射结构的无功能量、阻抗和 ${ m Q}$ 因子
DOI：
10.1109/tap.2010.2041166
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发表时间：
2010
影响因子：
5.7
通讯作者：
G. Vandenbosch
中科院分区：
文献类型：
--
作者：
G. Vandenbosch
推导了新的表达式来计算电磁设备周围电磁场中存储的无功能量。所得到的表达式非常容易解释，完全通用、明确，并且没有对设备上流动的电流进行近似。它们也很快，因为它们仅涉及生成场的设备上的积分。这项新技术非常适用于电抗和磁抗能量在实践中很重要的情况，特别是在辐射结构的情况下。在那里使用它们可以研究设备形状对无功能量的影响，从而对设备的 Q 值产生影响。新表达式在数值 CAD 工具中的实施极其简单明了。
New expressions are derived to calculate the reactive energy stored in the electromagnetic field surrounding an electromagnetic device. The resulting expressions are very simple to interpret, completely general, explicit and without approximations in terms of the currents flowing on the device. They are also fast since they involve integrals solely over the device generating the field. The new technique is very feasible to be used in cases where the electric and magnetic reactive energies are important in practice, especially in the case of radiating structures. Used there, they allow to study the effect of the shape of the device on the amount of reactive energy, and thus on the Q of the device. The implementation of the new expressions in numerical CAD tools is extremely simple and straightforward.