Patent ID: 11929189
Assignee: YUNAN HAN
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The filtering cable according to claim 1, wherein if the value of N is 1, the etching pattern comprises: a plurality of second patterns;
the second patterns comprise: a first double-ring hollow pattern and a second double-ring hollow pattern spaced from each other;
the first double-ring hollow pattern and the second double-ring hollow pattern are symmetrical and the axis of symmetry is provided in the radial direction of the filtering cable;
the first double-ring hollow pattern and the second double-ring hollow pattern have a first non-hollow area at the middle of the side of the outer ring close to the axis of symmetry;
the first double-ring hollow pattern and the second double-ring hollow pattern have a second non-hollow area at the middle of the side of the inner ring away from the axis of symmetry.