Dual-mode filters with conductor-loaded dielectric resonators

In this paper, a new class of dual-mode microwave filters is presented. These devices use conductor-loaded dielectric resonators with unloaded Q-factors of 2000-8000 achievable in half the physical size of TEM filters and with good spurious performance. The basic properties of this resonator have be...

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Bibliographic Details
Published inIEEE transactions on microwave theory and techniques Vol. 47; no. 12; pp. 2304 - 2311
Main Authors Hunter, I.C., Rhodes, J.D., Dassonville, V.
Format Journal Article
LanguageEnglish
Published IEEE 01.12.1999
Subjects
Band pass filters
Ceramics
Coaxial components
Conducting materials
Conductors (devices)
Dielectric materials
Dielectrics
Finite element methods
Mathematical analysis
Microwave filters
Microwaves
Packages
Programmable control
Resonance
Resonator filters
Resonators
Stations
Transmission electron microscopy
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Summary:In this paper, a new class of dual-mode microwave filters is presented. These devices use conductor-loaded dielectric resonators with unloaded Q-factors of 2000-8000 achievable in half the physical size of TEM filters and with good spurious performance. The basic properties of this resonator have been examined with the aid of a finite-element field-analysis package. Fundamental design rules for bandpass filters have been developed. A design example of a transmit filter for a ground-signal-metal cellular-radio base station is demonstrated.
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ISSN:0018-9480
1557-9670
DOI:10.1109/22.808975