In this paper, the scattering parameter (S-parameter) modeling method for heterojunction
bipolar transistor (HBT) at different temperatures is investigated. S-parameters of HBT at …

Initially inspired by the work of Richard Feynman in 1959 during his famous talk “There is
plenty of room at the bottom”, nanoscience and nanotechnology have moved during the …

Filtering microwave amplifiers have become a topic of interest because of the need for
devices capable of isolating the system itself and avoiding interference from other systems …