Miniaturized millimeter wave ultra-wideband equalization filter circuit and adjustment method

The invention provides a miniaturized millimeter wave ultra-wideband equalization filter circuit and an adjusting method. The miniaturized millimeter wave ultra-wideband equalization filter circuit comprises a filter unit and a millimeter wave adjustable equalization unit, and the filter unit comprises an input feeder line, a first microstrip single-mode resonator, a four-mode resonator, a second microstrip single-mode resonator and an output feeder line which are arranged in sequence; the millimeter wave adjustable equalization unit is connected with an input feeder line of the filtering unit through a 50-ohm transmission line and is used for adjusting the equalization quantity; the filtering unit and the millimeter wave adjustable equalization unit are prepared on the upper surface of the dielectric substrate through a thin film circuit technology and are provided with three-stage or N-stage adjustable units, and the back surface of the dielectric substrate is a metal grounding layer. Miniaturization and ul