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Resonant Characteristics of Triple-Mode Dielectric Resonators
Jae-Yoon Myung,Sang-Won Yun,Namshin Park,Donyong Lee,Byungchul Kim,Jeonghee Won,Inho Na,Geonho Jang,Xu-Guang Wang 한국전자파학회JEES 2014 Journal of Electromagnetic Engineering and Science Vol.14 No.1
This paper discusses the resonant characteristics, such as the resonant frequencies and Q factors, as well as tuning methods of the resonant frequency of the triple-mode dielectric resonators, for their possible application to compact bandpass filters for mobile communication systems. The resonators include spheres and cylindrical rods that can be applied to compact bandpass filters. These high Q ceramic resonators can replace the conventional coaxial type resonators, which are large sized and also have relatively low Q values. Both simulated and measured results show that the Q values of the sphere and rod reach 27,000 and 24,000, respectively. Decoupling of degenerate modes is also briefly discussed.