Patent ID: 9118097
Filing Date: 2015-08-25
Classification: H01P,H05K

Abstract:
1. A differential mode transmission line with a weak coupling structure, comprising: a first transmission line, comprising a first wiring portion, a second wiring portion, a third wiring portion, a first connection portion, and a second connection portion, the first connection portion connected to the first wiring portion and the second wiring portion, and the second connection portion connected to the second wiring portion and the third wiring portion; and a second transmission line, comprising a first wiring portion, a second wiring portion, a third wiring portion, a first connection portion, and a second connection portion, the first connection portion connected to the first wiring portion and the second wiring portion, and the second connection portion connected to the second wiring portion and the third wiring portion; wherein the first wiring portion of the first transmission line and the first wiring portion of the second transmission line define a first pitch, the second wiring portion of the first transmission line and the second wiring portion of the second transmission line define a second pitch, the third wiring portion of the first transmission line and the third wiring portion of the second transmission line define a third pitch, and the second pitch is greater than each one of the first pitch and the third pitch; wherein the first connection portion of the first transmission line comprises a first part and a second part, the second connection portion of the first transmission line comprises a third part and a fourth part, a first end of the first part of the first connection portion of the first transmission line is connected to the first wiring portion of the first transmission line, a second end of the first part of the first connection portion of the first transmission line is connected to a first end of the second part of the first connection portion of the first transmission line, a second end of the second part of the first connection portion of the first transmission line is connected to the second wiring portion of the first transmission line, a first end of the third part of the second connection portion of the first transmission line is connected to the second wiring portion of the first transmission line, a second end of the third part of the second connection portion of the first transmission line is connected to a first end of the fourth part of the second connection portion of the first transmission line, and a second end of the fourth part of the second connection portion of the first transmission line is connected to the third wiring portion of the first transmission.