X-band 3D meander stripline delay line using multilayer LTCC

Two kinds of multilayer low-temperature co-fired ceramic (LTCC) delay lines (approximate 8lambda_g and 1lambda_g at 9.5GHz), using 3D meander stripline, are proposed in this paper. Measurement results in the whole band (9~10GHz) show that, besides low VSWR, low time dispersion can be achieved as les plusmn0.002ns for 8lambda_g delay line and les plusmn0.001ns for 1lambda_g delay line. This technology can also obtain more compact size than other technologies, as 5mmtimes7mmtimes2.37mm for 8lambda_g delay line and 2mmtimes3mmtimes2.37mm for 1lambda_g delay line.