Analysis of oscillator injection locking by harmonic balance method

Gourary, M.M.; Русаков, С. Г.; Ulyanov, S.L.; Жаров, М.М.; Mulvaney, B.J.; Gullapalli, K.K.

doi:10.1145/1403375.1403452

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…In [5] the optimum load impedance for maximum output power for our HBT was calculated to be Z ref = 34 + 9.6 j , and a corresponding X‐parameters model was extracted at Z ref , by using a mixed passive–active load‐pull LSNA‐based measurement system. As demonstrated in previous papers by the authors [4, 5–14, 15], the model is able to correctly interpolate and extrapolate at other (close) output fundamental impedances around Z ref . This is very important for oscillator design, since depending on the design or the targeted figures of merit the optimum output impedance will change.…”

Section: Injection‐locked Oscillator Circuit Design: a New Design Metsupporting

confidence: 53%

“…This methodology is fully measurement-based, accurate and simple, in comparison to other previously proposed synchronised oscillator design procedures [6][7][8][9][10][11][12] being more thorough in terms of their theoretical background. Nevertheless, the new proposed methodology quickly provides a possible design solution, saving design simulation time.…”

Section: Introductionmentioning

confidence: 99%

“…Please, note this paper aims to provide the microwave circuit designer with a new practical and robust methodology to guide the design of injection‐locked oscillators. This methodology is fully measurement‐based, accurate and simple, in comparison to other previously proposed synchronised oscillator design procedures [6–12] being more thorough in terms of their theoretical background. Nevertheless, the new proposed methodology quickly provides a possible design solution, saving design simulation time.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of injection‐locked oscillator circuits using an HBT X‐parameters™‐based model

Rodriguez-Testera¹,

Pelaez-Perez

Fernandez-Barciela³

et al. 2015

IET Microwaves, Antennas & Propagation

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A load independent X-parameters-based heterojunction bipolar transistor (HBT) model has been used for the first time in the design and behaviour prediction of injection-locked oscillator circuits. This model has been extracted from load-pull measurements with a large-signal network analyser and, in order to obtain a high oscillator RF power, targeting a load impedance close to the optimum one for HBT maximum output power. A methodology is given to obtain robust injection-locked oscillator circuits with a highsynchronisation bandwidth. Several injection-locked oscillator prototypes have been designed and fabricated, and their measurements compared with the simulations obtained using the X-parameters model. Satisfactory results were obtained when the prototypes were operated as free-running and synchronised oscillators.

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Section: Injection‐locked Oscillator Circuit Design: a New Design Metsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of injection‐locked oscillator circuits using an HBT X‐parameters™‐based model

Rodriguez-Testera¹,

Pelaez-Perez

Fernandez-Barciela³

et al. 2015

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

show abstract

“…Substituting this expression into (20) the equation (19) can be written as follows (23) It is seen that the steady-state solution of (23) is , where satisfies the equation (24) that coincides with the injection locking phase algebraic equation derived in [9]. Thus the macromodel (19, 20) correctly defines the injection locking solution.…”

Section: B Injection Locking Conditionsmentioning

confidence: 89%

“…The Adler equation (1) (1) if and is taken in accordance with LC oscillator characteristics (see [9,10]). …”

Section: Adler Equationmentioning

confidence: 99%