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A novel approach for changing the coupling nature between TE 01 δ ‐mode dielectric resonators
Author(s) -
Yu Bin,
Jia Baofu,
Zhu Zhaojun
Publication year - 2016
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20957
Subject(s) - coupling (piping) , resonator , dielectric , materials science , microwave , electric field , coupling strength , field (mathematics) , mode (computer interface) , orientation (vector space) , optoelectronics , acoustics , physics , engineering , computer science , condensed matter physics , telecommunications , composite material , geometry , mathematics , quantum mechanics , pure mathematics , operating system
In this article, a novel coupling method which could easily change the coupling nature between two TE 01 δ ‐mode dielectric resonators (DRs) is presented. This method is based on electric field orientation of DR operating in TE 01 δ ‐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. © 2015 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:226–231, 2016.