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Dual-Band Dielectric-Resonator Filters

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2 Author(s)
Rui Zhang ; Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada ; Raafat R. Mansour

A novel dual-band dielectric resonator constructed from a single piece of high-K ceramic substrate is presented in this paper. The proposed dual-band dielectric resonator is employed to implement dual-band filters whose center frequencies and bandwidths of the first and second passbands can be controlled independently. To illustrate the concept, two dual-band filters of this type with different bandwidth and separation of two passbands are designed, fabricated, and measured. The filters are both compact in size with a great simplicity in assembly and integration. The developed dual-band dielectric-resonator filters are potentially applicable for multiband applications in future wireless communication systems.

Published in:

IEEE Transactions on Microwave Theory and Techniques  (Volume:57 ,  Issue: 7 )