Half mode substrate integrated waveguide duplexer
A half-mode substrate integration and duplexer technology, which is applied in waveguide devices, electrical components, circuits, etc., can solve the problems of poor performance of duplexers, large insertion loss, and low Q value of circuits, and meet the requirements of miniaturization demand, large power capacity, and ease of integration
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[0022] Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail:
[0023] see figure 1 with figure 2 , a half-mode substrate integrated waveguide duplexer, including a dielectric plate 2, and also includes an upper metal coating 1 on the front side of the dielectric plate 2 and a lower metal coating 3 on the reverse side of the dielectric plate 2; the upper metal coating 1 has The input port 1-1 and the two output ports 1-2, 1-3 are directly coupled and fed by 50Ω microstrip line; the upper metal plating layer 1 is provided with a ground metal through hole 5 .
[0024] The upper metal plating layer 1 is provided with two rectangular HMSIW cavities, which is about half the size of the general SIW cavity, which is conducive to miniaturization requirements. The metal through hole 5 is used as the cavity wall of the resonant cavity, and three slits 6 and 7 are arranged in the cavity of each HMSIW resonant cavity, and t...
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