Coupled Transversal Bandpass Filter and Its Application

Reconfigurable and multiband circuits play an important role in modern wireless systems. To satisfymultiple applications operating at different frequency bands, multiband circuits are required and necessary.On the other hand, in comparison to conventional circuits with only one frequency response, reconfigurablecircuits can adopt to the environment changing. Therefore, multiband and reconfigurable circuits areimportant parts in modern wireless systems. In this project, based on transversal coupled bandpass filters,three circuits will be investigated, including switchable bandpass filter with two on states, widebandbandpass filter with tunable notched band, and multilayer multiband bandpass filter with combination of theabove-mentioned characteristic.