System and method for a radio frequency coupler
AssigneeInfineon Technologies AG
InventorsValentyn Solomko, Winfried Bakalski, Nikolay Ilkov
Life of this patent
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Abstract
In accordance with an embodiment, a directional coupler includes a coupler circuit and at least one amplifier coupled between a coupler circuit isolated port and a directional coupler isolated port and/or between a coupler circuit coupled port and a directional coupler coupled port. In various embodiments, the directional coupler is disposed over and/or in a substrate.
Claims24
A directional coupler comprising:
- a coupler circuit disposed on a monolithic integrated circuit (IC);
- and
- at least one amplifier disposed on the monolithic IC, the at least one amplifier coupled between a coupler circuit isolated port and a directional coupler isolated port and/or between a coupler circuit coupled port and a directional coupler coupled port, wherein the directional coupler isolated port and the directional coupler coupled port each comprise an externally accessible terminal of the monolithic IC, and a directivity of the directional coupler is independent of an external termination coupled to the directional coupler isolated port or the directional coupler coupled port.
A directional coupler including a directional coupler input port, a directional coupler transmit port and a directional coupler output port, the directional coupler comprising:
- a coupler circuit including a first coupler circuit input port, a first coupler circuit transmit port, a first coupler circuit isolated port and a first coupler circuit coupled port;
- an amplifier coupled to the directional coupler output port;
- and
- a switch selectively coupling an input of the amplifier to the coupler circuit coupled port and coupler circuit isolated port, wherein the coupler circuit, amplifier and switch are disposed on a monolithic integrated circuit and an output of the amplifier is coupled to an externally accessible terminal of the monolithic integrated circuit, and a directivity of the directional coupler is independent of an external termination coupled to the directional coupler output port.
A method of operating a monolithic integrated circuit comprising a directional coupler including a coupler circuit, and at least one amplifier coupled between a coupler circuit isolated port and an externally accessible directional coupler isolated port and/or between a coupler circuit coupled port and an externally accessible directional coupler coupled port, the method comprising:
- receiving an incident signal at an externally accessible directional coupler input port coupled to a coupler circuit input port;
- transmitting the incident signal at an externally accessible directional coupler transmit port coupled to a coupler circuit transmit port;
- and
- monitoring at least one signal at the externally accessible directional coupler coupled port and/or the externally accessible directional coupler isolated port, wherein a directivity of the directional coupler is independent of an external termination coupled to the externally accessible directional coupler isolated port or the externally accessible directional coupler coupled port.
Dependencies are inferred from the claim text.