DVB-T2 channel filters

Paper states circuit and constructive solutions for high-power channel elliptic filters applied in DVB-T2 digital video broadcasting systems. The method of finding coupling windows sizes based on the pass-band lumped equivalent circuit and electrodynamical simulation is proposed. The coupling windows provide precise coupling factors between adjacent and contiguous resonators. The considered approach permits to simplify extremely the technological process of complex multi-resonator filters tuning both in the frequency and time domain.