slot hybrid

Chenyang Wu , Qingyuan Wang and Xi Tian. odin 138 slot A compact waveguide 3-dB hybrid with full bandwidth is proposed in this Letter The tight coupling and full bandwidth of Ka-band (from 26 3 to 40 GHz) are achieved by introducing multi-sections of wave-guide with different width and depth, together with loaded posts on the bottom of some waveguide sections