S-band microwave self-load quadrature power divider

The invention relates to an S-band microwave self-loading quadrature power divider which comprises a microwave power divider and two self-connected matched load directional couplers. The self-matched loading directional coupler comprises a surface-mounted input/output port, double-helix structured broadside coupled striplines and a matched load self-connected at an isolated port. The above structures are realized by a multilayer low-temperature co-fired ceramics technology. According to the invention, four routes have the same output signal power. The power divider requires no external load, can generate quadrature phase, is easy to debug, is light in weight, has high reliability, good electrical property, good temperature stability and good electrical property batch consistency, is low-cost, can be used for mass production and is suitable for occasions and corresponding systems of corresponding microwave frequency band communication, satellite communications and the like which have strict requirements on volume, electrical property, temperature stability and reliability.