Radio frequency signal amplifier and amplifying system
AssigneeMicroelectronics Technology Inc.
InventorMING CHE LIOU
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Abstract
The present disclosure provides a radio frequency signal amplifier and amplifying system using coaxial cables to apply bias voltages to the control terminals of the transistors. The radio frequency signal amplifier includes a transistor connected between an input terminal and an output terminal, a first coaxial cable configured to couple a bias voltage to a control terminal of the transistor, a feed line connected between the bias voltage and the first coaxial cable, and a second coaxial cable connected between an open stub and the control terminal of the transistor.
Claims20
A radio frequency signal amplifier, comprising:
- a transistor connected between an input terminal and an output terminal;
- a first coaxial cable configured to couple a bias voltage to a control terminal of the transistor;
- a feed line connected between the bias voltage and the first coaxial cable;
- and
- a second coaxial cable connected between an open stub and the control terminal of the transistor.
A radio frequency signal amplifying system, comprising:
- a first transistor and a second transistor connected in parallel between an input terminal and an output terminal;
- a first coaxial cable configured to couple a first bias voltage to a first control terminal of the first transistor;
- a second coaxial cable configured to couple a second bias voltage to a second control terminal of the second transistor;
- a third coaxial cable connected between a first open stub and the first control terminal of the first transistor;
- and
- a fourth coaxial cable connected between a second open stub and the second control terminal of the second transistor.
The radio frequency signal amplifying system of claim 19, wherein the second coaxial cable and the fourth coaxial cable are arranged in a symmetrical manner with respect to a middle site of the second control matching pad.
Dependencies are inferred from the claim text.