Defected ground structure interdigital coupler
A defect grounding structure and interdigital coupling technology, applied in the microwave field, can solve the problems of demanding processing and production precision, deteriorating isolation effect, and reducing production technology, and achieve the effects of easy integration, good strong coupling, and lower requirements
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[0020] A defect grounding structure interdigital coupler provided by the present invention, such as figure 1 and figure 2 as shown,
[0021] A defective grounding structure interdigital coupler, including a dielectric substrate 15, one side of the dielectric substrate 15 is respectively attached to four coupling metal strips and four microstrip feeders; the other side of the dielectric substrate 15 is attached to a microstrip grounding plate 13 and a DGS defect structure 14; the four coupling metal strips are arranged in the middle of the dielectric substrate; the DGS defect structure is located at the corresponding position of the four coupling metal strips;
[0022] The four coupling metal strips are respectively first to fourth coupling metal strips; the first to fourth coupling metal strips are arranged in parallel in sequence;
[0023] The four microstrip feeders are respectively first to fourth microstrip feeders;
[0024] One end of the first coupling metal strip 5 ...
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