Patent ID: 7570133
Filing Date: 2009-08-04
Classification: H01P

Abstract:
1. A true time delay system having passive amplitude compensation, the true time delay system comprising: a multi-throw input switch; a multi-throw output switch; a reference delay line disposed between the multi-throw input switch and the multi-throw output switch; and a plurality of time delay lines disposed between the multi-throw input switch and the multi-throw output switch, each of the plurality of time delay lines having a different line length, each of the plurality of time delay lines including one or more corresponding ground planes and a center conductor having a different width and being separated from the one or more corresponding ground planes by one or more corresponding gap spaces, wherein, for each of the plurality of time delay lines, the width of the center conductor is configured such that a loss of the time delay line is substantially the same as a loss of every other time delay line over a range of operating frequencies, wherein, for each of the plurality of time delay lines, the gap space is configured such that an impedance of the time delay line is substantially the same as an impedance of every other time delay line.