Q -band cross-coupled dielectric resonator filter using TM mode for satellite application.

Autor: Martínez Vázquez, Marta, Ghadiya, Ambrish, Soni, Shilpi, Trivedi, Keyur
Zdroj: International Journal of Microwave & Wireless Technologies; Mar2018, Vol. 10 Issue 2, p235-241, 7p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index