Dual-Behavior Resonator (DBR) C-band planar band-pass filter for a space application
Résumé
This paper describes an original solution used to realize a C-band planar filter for a given space application. Because of the particular and strong specifications for the filter, a classical topology is forbidden. The proposed solution is, thus, based on the use of dual behavior resonators where high frequency stubs are oversized to increase the rejection at a specific frequency. Low-pass structures are also integrated in order to suppress spurious resonances. Two frequency planes with different local oscillators (LO) frequencies are studied. Simulated and experimental data are compared.