18498008. DISTRIBUTED PROGRAMMABLE GAIN AMPLIFIER (Avago Technologies International Sales Pte. Limited)
DISTRIBUTED PROGRAMMABLE GAIN AMPLIFIER
Organization Name
Avago Technologies International Sales Pte. Limited
Inventor(s)
Jerry Jifang Han of Cupertino CA US
DISTRIBUTED PROGRAMMABLE GAIN AMPLIFIER
This abstract first appeared for US patent application 18498008 titled 'DISTRIBUTED PROGRAMMABLE GAIN AMPLIFIER
Original Abstract Submitted
An amplifier includes a first transmission line from a first terminal to a second terminal. The first transmission line is characterized by a first characteristic impedance matched to a resistance of a source from which a first signal is coupled to the second terminal. The amplifier includes a first resistor with a first resistance and a second resistor with a second resistance coupled between the second terminal and a third terminal. The first resistance and the second resistance are adjustable to match an input impedance at the second terminal to the first characteristic impedance and to tune a gain of a second signal at the third terminal over the first signal at the second terminal. The amplifier includes a second transmission line from the third terminal to a third resistor with a third resistance, the second transmission line being characterized by a second characteristic impedance matched to the third resistance.