Ka-band Six-port Network Circuit Based on Microstrip Double Ridge Gap Waveguide Technology
For millimeter-wave high precision radar detection application,a six-port network circuit based on microstrip double ridge gap waveguide(M-DRGW)has been proposed in this paper.The key circuits of power divider and coupler are designed based on the M-DRGW,and a novel transition between M-DRGW and microstrip is designed.The M-DRGW Ka-band six-port net-work is constructed based on the above circuits according to the simplified six-port network diagram.The measured results show that within the designed frequency range 37.5 GHz～42.5 GHz the phase differences between port 1/port 2 and the other four out-put ports are,respectively,within±2.5° and±5°,and the insertion loss is about 7.3 dB at the middle working frequency.There is a consistence between the measured results and the simulated ones.
microstrip double ridge gap waveguidesix-port network circuitpower dividercouplertransition
万方数据
维普
