In November 1781, John Hanson became the first President of the United States in Congress Assembled, under the Articles of Confederation. Many people have argued that John Hanson, and not George Washington, was the first President of the United States, but this is not quite true.
Even and odd mode impedances of a coupled microstrip line. actually I find the reason when you use differential port, the impedance you get is twice the odd mode impedance, whereas if you use common port, the impedance is half the even mode impedance. 1 members found this post helpful.
Although both are transistors, they have significant differences in characteristics. BJT (Bipolar Junction Transistor). BJT is a type of transistor that consists of two PN junctions (a junction made by connecting a p type semiconductor and n type semiconductor).These two junctions are formed using connecting three semiconductor pieces in the order of P-N-P or N-P-N.t is a type of transistor, which can handle a higher amount of power and has a higher switching speed making it high efficient. IGBT has been introduced to the market in 1980s. IGBT has the combined features of both MOSFET and bipolar junction transistor (BJT).