Dielectric relaxation parameters of dimethylene chloride with dimethylformamide in microwave frequency range 10 MHz to 20 GHz has been determined using time domain reflectometry. The HP54750A digitizing oscilloscope with HP54754A TDR module is used for these measurements. The time dependent data is processed to obtain complex reflection coefficient r*(w). The complex permittivity spectra e*(w) is obtained by applying bilinear calibration method. The Bruggeman Parameters are obtained using static dielectric constant. The paper discusses the weak inter molecular interaction in the binary mixture through Bruggeman parameter model.
