A novel approach for changing the coupling nature between TE01-mode dielectric resonators

作者：Yu, Bin^*; Jia, Baofu; Zhu, Zhaojun

来源：International Journal of RF and Microwave Computer-Aided Engineering, 2016, 26(3): 226-231.

DOI：10.1002/mmce.20957

• dielectric resonators
• TE01-mode
• transmission zeros
• direction of the field
• coupling nature

In this article, a novel coupling method which could easily change the coupling nature between two TE01-mode dielectric resonators (DRs) is presented. This method is based on electric field orientation of DR operating in TE01-mode, through altering the direction of the coupling structure in one DR, the coupled electric field orientation in the other DR would be changed along with the coupling nature between two resonators. To prove this method, two filters using cascaded quadruplet coupling structure have been designed, fabricated and measured. The coupling strength is enhanced due to the employ of two grounded mental cylinder on both sides of the copper sheet. In addition, a tuning screw is introduced between two DRs to adjust the coupling strength after mounting expediently. Measured results confirmed the predicted performance, showing that the coupling nature and coupling strength are controllable between two DRs.

• 出版日期2016-3
• 单位电子科技大学