Suspended mictrostrip filter and duplexer and method for designing and debugging filter
A microstrip line filter and filter technology, which is applied in waveguide-type devices, radio relay systems, diversity/multi-antenna systems, etc., can solve problems such as high machining accuracy requirements, long manufacturing cycles, and poor mass production consistency. , to achieve the effect of high production yield, shortened supply cycle, and no need for debugging
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[0065] Below according to accompanying drawing and embodiment the present invention will be described in further detail:
[0066] see figure 1 figure 2 image 3 , the suspended microstrip line filter of the present invention, its basic structure comprises: a cavity formed by metal shell 1, a PCB double-sided board 20 is arranged in the described cavity, PCB double-sided board is fixed on the side wall of metal shell, And there is a certain air height h between the PCB double-sided board and the upper and lower inner walls of the metal shell; the front side of the PCB double-sided board is etched with a ten-byte cascaded transmission line 30 of a predetermined shape, and the ten-byte cascaded transmission line 30 consists of more than one section Such as figure 2 The ten-byte units shown are cascaded, and each level of ten-byte units is composed of ten-byte units 33 of predetermined structural size, open lines 32 and transmission lines 31, and each ten-byte unit forms a re...
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