Broadband microwave six-port structure

The invention discloses a broadband microwave six-port structure. A power divider is provided with a signal input end, a first signal output end and a second signal output end. The first signal output end is connected with a signal input end of one of 3dB quadrature couplers which are distributed in a T-type manner. The second output end is connected with a signal input end of another quadrature coupler of the 3dB quadrature couplers. The rest quadrature coupler of the 3dB quadrature couplers is opposite to the power divider. The structure is widely applicable and by changing technical indexes of the power divider and the couplers, different bandwidths and working frequency bands can be obtained, so the structure can be suitable for different receiving systems.