Patent ID: 6816031
Filing Date: 2004-11-09
Classification: G01R,H01P

Abstract:
A transmission line providing a signal path for conveying a signal between two points with an adjustable signal path delay, the transmission line comprising:a signal conductor conveying the signal between the two points; a first varactor diode having a first variable capacitance; and a first coupling conductor, the first varactor diode connected to the first coupling conductor, the first coupling conductor being positioned sufficiently near a portion of the signal conductor that an inherent first capacitance between the signal conductor and the first coupling conductor is sufficiently large to couple the first variable capacitance of the first varactor diode to the signal conductor and enable the variable capacitance to substantially influence a rate at which the signal conductor conveys the signal between two points; a second varactor diode having a second variable capacitance; and a second coupling conductor spaced from the first coupling conductor, the second coupling conductor being positioned sufficiently near a portion of the signal conductor that an inherent second capacitance between the signal conductor and the second coupling conductor is sufficiently large to couple the second variable capacitance of the second varactor diode to the signal conductor and enable the variable capacitance to substantially influence a rate at which the signal conductor conveys the signal between the two points, wherein an anode of the first varactor diode is connected to the first coupling conductor and a cathode of the second varactor diode is connected to the second coupling conductor.