Patent ID: 11870125
Assignee: NANNING FULIAN FUGUI PRECISION INDUSTRIAL CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A branch-line coupler, adapted to radio frequency circuits, comprising:
an input port;
a first output port;
a second output port;
an isolated port;
a first transmission line having two first open branches, electrically connected between the input port and the first output port;
a second transmission line having two second open branches, electrically connected between the isolated port and the second output port;
a first bent branch line, electrically connected between the input port and the isolated port; and
a second bent branch line, electrically connected between the first output port and the second output port, wherein the two first open branches and the two second open branches are fishbone-like structures.