Novel wideband microband coupler based on defect place structure
A defect structure and coupler technology, applied in waveguide devices, electrical components, connecting devices, etc., can solve problems such as narrow bandwidth, achieve low resonance frequency, wide operating bandwidth, and improve the effect of coupling mode impedance
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[0030] Such as figure 1 The structure diagram of a novel broadband coupled microstrip directional coupler based on a defective ground structure is shown as follows: ground layer 1 defective ground structure 4 and microstrip structure signal layer 5; specific examples are as follows:
[0031] In the signal layer 5 with two microstrip structures, there is a gap d between the inner sides of the long sides P of the two signal layers 5 with the microstrip structure. There are two ports 6 at both ends of the signal layer 5 of each microstrip structure.
[0032] The defective ground structure 4 is placed symmetrically at the distance d, and the opening g of the defective ground structure 4 and the distance d of the signal layer 5 of the microstrip structure are overlapped.
[0033] Such as figure 2 A schematic diagram of a defective grounding structure in the shape of an open ring loaded with interdigitated lines. The defective ground structure 4 is composed of a ground layer 1, an ope...
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