Multiple amplifier interconnection for optimal sensitivity

Details Multiple amplifier interconnection for optimal sensitivity Multiple amplifier interconnection for optimal sensitivity

H - Electricity

03

F

330/105, 330/13

H03F 1/26 (2006.01) H03F 3/68 (2006.01)

Patent

CA 1189920

- 11 - MULTIPLE AMPLIFIER INTERCONNECTION FOR OPTIMAL SENSITIVITY Abstract To obtain optimal operational sensitivity from an amplifier connected to a source of electrical signals, a technique utilizes multiple amplifiers connected together. The technique determines the number, N, of amplifiers to be used and whether they should be connected in parallel or series in order to optimize the sensitivity of a given type of amplifier. Accordingly, multiple interconnection of amplifiers may be used in lieu of noise matching with transformers to minimize the excess-noise figure of the multiple amplifier circuit. The technique capitalizes on the advances in integrated circuit amplifier design, such as compactness and sideband performance, while providing lower loss and higher reliability through redundancy.

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