M-way coupler
AssigneeMediaTek Singapore Pte. Ltd.
InventorsTiku Yu, Jing-Hong Conan Zhan
Life of this patent
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Abstract
An M-way coupler having a first port, M second ports, M transmission line sections, M isolation resistors and a phase shifting network is disclosed, where M is an integer number greater than 1. The M transmission line sections couple the first port to the M second ports, respectively. Each of the M isolation resistors has a first terminal and a second terminal. The first terminals of the M isolation resistors are coupled to the M second ports, respectively. The phase shifting network has M I/O terminals coupled to the second terminals of the M isolation resistors, respectively. The phase shifting network is arranged to provide a phase shift within a predetermined tolerance margin between arbitrary two I/O terminals of the M I/O terminals of the phase shifting network.
Claims18
An M-way coupler, comprising:
- a first port and M second ports, wherein M is an integer number greater than 1;
- M transmission line sections, connecting to the first port and the M second ports, respectively;
- M isolation resistors, wherein each of the M isolation resistors has a first terminal and a second terminal, and the first terminals of the M isolation resistors are connected to the M second ports, respectively;
- a phase shifting network, having M I/O terminals connected to the second terminals of the M isolation resistors, respectively, wherein the phase shifting network is arranged to provide a phase shift within a predetermined tolerance margin between any two I/O terminals of the M I/O terminals of the phase shifting network.
Dependencies are inferred from the claim text.