Compact six-port circuit based on half-mode substrate integrated waveguide
A half-mode substrate integrated and compact technology, applied in the direction of waveguide devices, circuits, electrical components, etc., can solve the problems of high integration and easy interference, and achieve the effect of compact structure, large bandwidth, and strong anti-interference ability
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[0025] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0026] The present invention provides a compact six-port circuit based on a half-mode substrate integrated waveguide, such as figure 1 and 2 As shown, it includes a layer of dielectric substrate, two input ports, four output ports, metallized through-holes for adjusting the transition from microstrip line to substrate-integrated waveguide SIW, and the transition from substrate-integrated waveguide to half-mode substrate-integrated waveguide Power divider, 3dB directional coupler based on half-mode substrate integrated waveguide HMSIW, ±45° phase shifter. Among them, the design of the power divider and the 3dB directional coupler based on HMSIW is the focus, and their performance directly affects the six-port circuit. The power divider that transforms the substrate-integrated waveguide into a half-mode substrate-integrated waveguide is first trans...
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