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Q-band cross-coupled dielectric resonator filter using TM mode for satellite application
Published online by Cambridge University Press: 13 February 2018
Abstract
A new structure of Q-band filter comprising rectangular high-permittivity dielectric resonators (DR) operating at TM11δ mode is introduced. The resonator shows high-quality factor (Q) and wide spurious free window compared with other technologies available at Q-band for realizing filters. Low permittivity ceramic material (quartz) is used as a support for holding DR at the center of the cavity. An eight-pole cross-coupled band-pass filter having a bandwidth of 225 MHz at 38.5 GHz was realized. Resonant coupling structure is introduced to realize cross-coupling in filter. The resonator assemblies were optimized precisely to achieve effective linear frequency drift over temperature of the order of 2 ppm/°C. The filter also survived severe sine and random vibration test for satellite application.
- Type
- Research Papers
- Information
- International Journal of Microwave and Wireless Technologies , Volume 10 , Special Issue 2: EuCAP 2017 , March 2018 , pp. 235 - 241
- Copyright
- Copyright © Cambridge University Press and the European Microwave Association 2018