Patent ID: 8362851

Claim:
A high isolation power divider, comprising: a substrate comprising a first plane and a second plane; a first split arm deposited on the first plane of the substrate, wherein the first split arm comprises a first end and a second end; a second split arm deposited on the first plane of the substrate, wherein the second split arm comprises a first end and a second end; a signal input unit deposited on the first plane of the substrate, and coupled to the first end of the first split arm and the first end of the second split arm, for receiving an input signal and dividing the input signal to the first split arm and the second split arm; a connection unit deposited on the first plane of the substrate, and coupled to the second end of the first split arm and the second end of the second split arm, wherein the connection unit, the first split arm, and the second split arm surround a first area; a ground layer deposited on the second plane of the substrate for providing grounding, wherein the ground layer comprises a second area and the second area is an orthographic projection area of the first area onto the ground layer; and a slit formed in the ground layer; wherein at least a part of the slit is formed within the second area.