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Analysis of door seal structure of microwave oven with consideration of higher modes by the FDTD method

✍ Scribed by Yuusuke Kusama; Osamu Hashimoto; Minoru Makida

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
333 KB
Volume
85
Category
Article
ISSN
8756-663X

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✦ Synopsis

Abstract

This paper focuses on the choke structure, which is generally used in suppressing the leakage wave from the door gap of microwave ovens. A choke structure which simulates the interdigital periodic choke structure for mass‐produced microwave ovens is considered, and the shielding effect is examined by the FDTD method for leaky waves (hybrid waves) including the higher modes, as a situation very close to practice. As an application of such an analysis to the optimal design of the choke groove, the shielding effect is examined as a function of the angle of the metal plates composing the choke groove. It is shown that the proposed method of analysis is effective for such a complex structure. © 2002 Scripta Technica, Electron Comm Jpn Pt 2, 85(3): 50–57, 2002

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Optimization of a door seal structure of
Optimization of a door seal structure of a microwave oven using a FDTD method
✍ Ana Maria Rocha; Margarida Facão; João Pedro Sousa; António Viegas 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 247 KB

## Abstract The optimum door seal configuration to prevent radiation leakage from a microwave oven is still a manufacturing concern. Here, we propose a numerical algorithm to simulate the radiation propagation along a door seal structure using the finite‐difference time domain method, which is used