A deterministic approach for designing conditionally stable amplifiers

Edwards, M.L.; Cheng, Sheng; Sinsky, J.H.

doi:10.1109/22.392916

Cited by 33 publications

(22 citation statements)

References 2 publications

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“…The open-loop stability condition of the oscillator is similar to the Rollet proviso [19] for amplifier design methods that use the K [23] or µ [24,25] parameters. It is necessary to be able to perform a Nyquist analysis.…”

Section: Loop-gain Methodsmentioning

confidence: 99%

Provisos for Classic Linear Oscillator Design Methods. New Linear Oscillator Design Based on the NDF/RRT

Jiménez-Martín¹,

González-Posadas²,

Parra-Cerrada³

et al. 2012

PIER

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Section: Loop-gain Methodsmentioning

confidence: 99%

Provisos for Classic Linear Oscillator Design Methods. New Linear Oscillator Design Based on the NDF/RRT

Jiménez-Martín¹,

González-Posadas²,

Parra-Cerrada³

et al. 2012

PIER

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“…If unsuccessful on the first attempt, then the first termination will have to be moved away from its stability circle. Edwards et al [10] have shown that the maximum available or power gain for which conjugate matching can be obtained at the output or input port, respectively, is K . This formula is useful, but the student should also observe the effect of moving the first termination with respect to its stability circle.…”

Section: Discussionmentioning

confidence: 99%

Teaching Microwave Amplifier Design at the Undergraduate Level

Eccleston

2004

IEEE Trans. Educ.

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Abstract-Many textbooks on the subject of microwave amplifier design contain redundant material that may overload and confuse a student confronting microwave amplifiers for the first time. Some topics such as unilateral gain and unilateral design are often not necessary in this day of personal computing where exact gain and gain circle calculations can easily be used. Stability circles can be used to both identify allowable values of source and load reflection coefficients for the transistor and ascertain whether or not the transistor is unconditionally stable. By eliminating redundant topics and emphasizing the dual role of stability circles, instructors are able to effectively teach undergraduate students in a relatively short time design methods for narrow-band low-noise amplifiers, both single-stage and multistage, which employ either conditionally or unconditionally stable transistors.

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“…For this reason, stability methods such as K-factor or μ-factor, based on the S parameters [15][16][17][18] have been used. However, although the simplicity of these methods, there is a lack of capability to linearly predict the NIC stability.…”

Section: Introductionmentioning

confidence: 99%