Koji Iwabuchi

Consumer Applications of Microwaves

It is most important to design a cavity of an oven to optimize load impedance to a magnetron. The performance and longevity of the magnetron greatly depends on its operating points on the Rieke diagram. This chapter discusses several regions shown in the Rieke diagram. Microwave field visualization is also covered in the chapter. The advent of computers enables to estimate the microwave field easily by visualizing computed values. At the current stage, visualization is no longer indispensable for optimum oven design. There are four versatile computational approaches appropriate to microwave oven analysis, namely, the finite-difference time-domain (FD-TD) method, transmission line matrix (TLM) method, finite element method (FEM), and the method of moments (MoM). The chapter also offers an analysis on microwave leakage suppression in the ISM band of 2.4–2.5 GHz. The reason for suppression is that it is much better economically to reduce spurious microwaves from magnetrons themselves.

Consumer Applications of Microwaves: Microwave ovens and accessories

It is most important to design a cavity of an oven to optimize load impedance to a magnetron. The performance and longevity of the magnetron greatly depends on its operating points on the Rieke diagram. This chapter discusses several regions shown in the Rieke diagram. Microwave field visualization is also covered in the chapter. The advent of computers enables to estimate the microwave field easily by visualizing computed values. At the current stage, visualization is no longer indispensable for optimum oven design. There are four versatile computational approaches appropriate to microwave oven analysis, namely, the finite-difference time-domain (FD-TD) method, transmission line matrix (TLM) method, finite element method (FEM), and the method of moments (MoM). The chapter also offers an analysis on microwave leakage suppression in the ISM band of 2.4–2.5 GHz. The reason for suppression is that it is much better economically to reduce spurious microwaves from magnetrons themselves.

Chapter 9 – Consumer Applications of Microwaves: Microwave ovens and accessories

It is most important to design a cavity of an oven to optimize load impedance to a magnetron. The performance and longevity of the magnetron greatly depends on its operating points on the Rieke diagram. This chapter discusses several regions shown in the Rieke diagram. Microwave field visualization is also covered in the chapter. The advent of computers enables to estimate the microwave field easily by visualizing computed values. At the current stage, visualization is no longer indispensable for optimum oven design. There are four versatile computational approaches appropriate to microwave oven analysis, namely, the finite-difference time-domain (FD-TD) method, transmission line matrix (TLM) method, finite element method (FEM), and the method of moments (MoM). The chapter also offers an analysis on microwave leakage suppression in the ISM band of 2.4–2.5 GHz. The reason for suppression is that it is much better economically to reduce spurious microwaves from magnetrons themselves.