A Comparison Between Natural Resonances and Characteristic Mode Resonances of an Infinite Circular Cylinder

作者：Bernabeu Jimenez Tomas^*; Valero Nogueira Alejandro; Vico Bondia Felipe; Kishk Ahmed A

来源：IEEE Transactions on Antennas and Propagation, 2017, 65(5): 2759-2763.

DOI：10.1109/TAP.2017.2670368

• Characteristic modes
• eigenvalues and eigenfunctions
• electric field integral equation (EFIE)
• natural resonances
• PEC cylinder

Here, some aspects in the interpretation of the solutions of a PEC infinite circular cylinder with the Theory of Characteristic Modes are presented. First, natural resonances and characteristic mode resonances (CMRs) are introduced and compared. Second, characteristic eigenvalues are used to find those natural resonances considering complex ka values. Furthermore, by linking the standard and the generalized eigenvalue problems, a relation between natural resonances and characteristic mode eigenvalues is shown. Finally, the thesis stating that external CMR does not imply maximum field scattering is also demonstrated.

• 出版日期2017-5