| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Partially Loaded Cavity Analysis by Using the 2-D FDTD Method |
| YAO Bin1,2, ZHENG Qin-Hong1,2**, PENG Jin-Hui3, ZHONG Ru-Neng2, XIANG Tai2, XU Wan-Song2
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1College of Physical Science and Technology, Yunnan University, Kunming 650092
2School of Physics and Electronic Information, Yunnan Normal University, Kunming 650092
3Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093
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| Cite this article: |
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YAO Bin, ZHENG Qin-Hong, PENG Jin-Hui et al 2011 Chin. Phys. Lett. 28 118401 |
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Abstract A compact two-dimensional (2-D) finite-difference time-domain (FDTD) method is proposed to calculate the resonant frequencies and quality factors of a partially loaded cavity that is uniform in the z−direction and has an arbitrary cross section in the x–y plane. With the description of z dependence by kz , the three-dimensional (3-D) problem can be transformed into a 2-D problem. Therefore, less memory and CPU time are required as compared to the conventional 3-D FDTD method. Three representative examples, a half-loaded rectangular cavity, an inhomogeneous cylindrical cavity and a cubic cavity loaded with dielectric post, are presented to validate the utility and efficiency of the proposed method.
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| Keywords:
84.40.-x
03.50.De
41.20.-q
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Received: 24 June 2011
Published: 30 October 2011
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| PACS: |
84.40.-x
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(Radiowave and microwave (including millimeter wave) technology)
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03.50.De
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(Classical electromagnetism, Maxwell equations)
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41.20.-q
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(Applied classical electromagnetism)
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