This paper discusses the wideband array pattern synthesis based on filter banks, and the system output error is considered form time to frequency adaptive pattern synthesis. The novel structure is suitable to be used for the interference suppression in the downlink filter banks multicarrier system.

This paper proposes a novel high-gain 4H-SiC BJT structure with a p-type epitaxial layer on top of the extrinsic base layer. The current gain of the novel structure is improved by 140% compared with the conventional one by the simulator tool with the number of reasonable interface traps, which could be ascribed to the epitaxial layer to reduce the surface recombination in the extrinsic base. The process to fabricate this structure is also proposed in the paper.