Miniaturized equalizer based on double-helix resonator and defected ground structure

The invention discloses a miniaturized equalizer based on a double-helix resonator and a defected ground structure. The equalizer adopts the defected ground structure based on the double-helix resonator, and energy absorption adopts a chip resistor. The equalizer comprises a microstrip layer, a dielectric layer and a metal layer. The microstrip layer, the dielectric layer and the metal layer are sequentially stacked from top to bottom. The microstrip layer comprises a first port and a second port which are arranged at two ends of the microstrip line. The dielectric layer comprises a dielectricsubstrate. The metal layer includes a metal plate, wherein a first screw, a second screw, a third screw and a fourth screw are etched on the metal plate, the intersection of the first screw and the third screw and the intersection of the second screw and the fourth screw form an etching straight groove, and the absorption resistor is arranged in the middle of the etching straight groove. Comparedwith a traditional branch