Importance

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Abstract

A dual input low noise amplifier (LNA) for multi-band frequency operation is disclosed. The dual input LNA (100) simultaneously operates in two amplifier configurations for the two inputs (101 and 103), of a first frequency band and a second frequency band, to produce a common output (113). Matching networks (102 and 104) receive and pass the inputs (101 and 103) to a transistor device (106). The transistor device is coupled to a series resonant circuit (108) at a first input node (107) to ground AC signal energy from a second input node (109) of the transistor device. The grounding causes the transistor device to simultaneously amplify and combine the signals at the first and the second input nodes to produce the common output of the first frequency band and the second frequency band at a common output node (111) of the transistor device.

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First Claim