On the optimal design of multi-stage cascaded transistor amplifiers with noise, gain and mismatch constraints

Calandra, E.F.; Maio, B. Di; Lupo, Daniele

doi:10.1109/ecctd.2007.4529589

Cited by 2 publications

(3 citation statements)

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“…Thus, if there exists a noise and gain increment pair (α, β) such that (6) is true, then we can minimise the noise figure a fortiori as indicated by (10). Turning our attention to the role of F 2 ≥F .…”

Section: Research Articlementioning

confidence: 99%

“…1. (vi) Maximum first-stage gain: This corresponds to the pair (F 1 ,Ĝ 1 ) such that that the equality is met for (10); that iŝ…”

Section: Research Articlementioning

confidence: 99%

“…For the second problem the authors of [9] considered the conditions for optimisation of amplifier noise, gain and mismatch from a very high level. The same authors then propose a technique based on 'optimal design curves' which relate the gain, noise and mismatch in a condensed form indicating the potential trade-offs involved [10]. The work of [11] introduces a design method based on the noise measure for multi-stage low-noise amplifiers (LNAs) with the aim of minimising the noise factor, but does not treat the option of improving gain.…”

Section: Introductionmentioning

confidence: 99%

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Design of microwave transistor amplifiers with optimum cascaded gain and noise

Corral

2016

IET Microwaves, Antennas & Propagation

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The design of microwave transistor amplifiers with optimum cascade noise and gain is described. By treating two stages at a time, the condition for the second stage's noise figure needed to satisfy the total cascaded gain and noise performance is derived. Two optimal solutions are possible: Minimum cascade noise figure or maximum available cascade power gain without increasing the cascade noise over that of the minimum noise design. A design example is submitted showing the effectiveness of the proposed method in optimising the gain and noise of cascaded amplifier stages. The approach can be extended to noise temperature and multiple cascaded stages including passive blocks without any loss of generality.

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Section: Research Articlementioning

confidence: 99%

“…1. (vi) Maximum first-stage gain: This corresponds to the pair (F 1 ,Ĝ 1 ) such that that the equality is met for (10); that iŝ…”

Section: Research Articlementioning

confidence: 99%