Dielectric powder loaded coaxial-cavity filters
| Autor: | Senad Bulja, Florian Pivit, Efstratios Doumanis |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Waveguide filter
Fabrication Materials science business.industry Bandwidth (signal processing) Physics::Optics Dielectric Chebyshev filter Condensed Matter::Materials Science Band-pass filter Condensed Matter::Superconductivity Electronic engineering Optoelectronics Dissipation factor Condensed Matter::Strongly Correlated Electrons Prototype filter business |
| Zdroj: | RWS |
| DOI: | 10.1109/rws.2017.7885962 |
| Popis: | In this paper we demonstrate the use of low-loss dielectric powders in the design and fabrication of RF filters. Initially, several different powders are tested for their RF performance — in particular their relative dielectric permittivity and loss tangent. Then, based on the information obtained in this way, the best performance powder is used to design a 5-pole Chebyshev filter operating at a centre frequency of 779 MHz, with a bandwidth of 17 MHz. Upon fabrication of the filter housing, the filter cavities are filled with the powder. Compaction of the powders is achieved in a systematic way and has resulted in stable performance. |
| Databáze: | OpenAIRE |
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