Patent ID: 6556096
Filing Date: 2003-04-29
Classification: H03H

Abstract:
An artificial line comprising a two-port network with an essentially frequency-independent mirror impedance, which in a first state includes two identical inductors of magnitude L, connected in series and having a mutual inductance M, a capacitor of magnitude C1 over the inductors and a shunt capacitor C2 to earth, said artificial line being adapted to give a same group delay in a wide frequency range by element values as a function of a cut-off frequency fc and a characteristic impedance Z0 being selected according to inductance, mutual inductance and capacitance equations {â€ƒ&it;L&af;[nH]=107.4&CenterDot;10-3&it;Z0fC&af;[GHz]M&af;[nH]=51.72&CenterDot;10-3&it;Z0fC&af;[GHz]C1&af;[n&it;F]=27.85&CenterDot;10-3&it;1Z0&CenterDot;fC&af;[GHz]C2&af;[n&it;F]=318.3&CenterDot;10-3&it;1Z0&CenterDot;fC&af;[GHz]&AutoLeftMatch;said artificial line being a self-switched artificial line able to take a second state with a short delay by replacing the capacitor C1 with a short-circuit.