Distributed Parametric Resonator: A Passive CMOS Frequency Divider

Lee, Wooram; Afshari, Ehsan

doi:10.1109/jssc.2010.2056833

Cited by 24 publications

(27 citation statements)

References 27 publications

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“…Along similar lines, the gain stage of a pipeline ADC was designed using a parametric amplification concept [18]. In [19], a parametric frequency divider that uses a nonlinear transmission line with eight on-chip inductors was implemented at 20 GHz. However, the large line makes the design infeasible for a low-area implementation.…”

Section: Parametric Systemsmentioning

confidence: 99%

“…, can be obtained by equating the energy transferred per cycle to the average energy dissipated in the loss resistor, as shown in (19) below. (19) Transient waveforms from the simulation of the PPR getting pumped at 5.7 GHz are shown in Fig. 12 and show that at the edges of the phase interpolation range, the amplitude falls to about 50% of its maximum value.…”

Section: Phase-tunable Quadrature Generationmentioning

confidence: 99%

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A Phase-Interpolation and Quadrature-Generation Method Using Parametric Energy Transfer in CMOS

Bhardwaj

Lee

2015

IEEE Trans. Circuits Syst. I

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This work focuses on generation of quadrature clocks with high phase accuracy and low noise, while reducing area and power consumption. The design objective is to make these quadrature oscillators suitable for applications in power-and area-constrained SOCs. We demonstrate in this work quadrature clock generation using parametric capacitance modulation in CMOS technology. We present a quadrature-generation method that is based on parametric energy transfer to an LC resonator. The phase-sensitive nature of parametric pumping is used to generate a signal in quadrature with an incoming clock signal. The design also provides the capability of phase interpolation about quadrature, which is useful in many applications. The detailed system implementation is demonstrated and experimentally verified through a prototype in 65 nm CMOS.

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Section: Parametric Systemsmentioning

confidence: 99%

Section: Phase-tunable Quadrature Generationmentioning

confidence: 99%

A Phase-Interpolation and Quadrature-Generation Method Using Parametric Energy Transfer in CMOS

Bhardwaj

Lee

2015

IEEE Trans. Circuits Syst. I

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“…The quasi-harmonic approximation is valid as long as the RLC quality factor is reasonably large. By taking the derivatives of and in (12) with respect to time and replacing them in the original equation [see (11)], the following first-order differential equations for and are obtained: (13) where (14) In order to convert the above nonautonomous differential equations to autonomous ones (i.e., remove explicit time dependency), the equations are averaged over one oscillation period, . Since the amplitude and the phase are slowly varying functions of time over the oscillation period, they are assumed to be constant in the averaging process.…”

Section: A Formulation and Analytical Approachmentioning

confidence: 99%

“…Since then, there have been several designs on parametric frequency dividers implemented on printed circuit board (PCB) using discrete components [4]- [11]. There have been a few recent publications that demonstrate integrated RF parametric frequency dividers and downconverters in a CMOS technology [12]- [14]. Subharmonic oscillations are also known in acoustic systems, where by applying a strong electric excitation greater than a certain threshold, subharmonics or fractional harmonics of the applied frequency are generated.…”

Section: Introductionmentioning

confidence: 99%

Passive Subharmonic Generation Using Memoryless Nonlinear Circuits

Safarian

Hashemi

2012

IEEE Trans. Microwave Theory Techn.

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A passive subharmonic generation and frequency downconversion method using a memoryless nonlinear circuit coupled to a linear passive resonator is presented. The frequency downconverter can be used to transfer the energy from a high-frequency signal to a lower frequency without requiring any dc power supply. In the synchronous mode, the passive downconverter acts as a self-powered frequency divider. The characteristics of the self-powered frequency downconverter have been studied analytically, and design tradeoffs have been shown for the specific case of a cross-coupled differential pair nonlinearity. As an example, a low-frequency prototype is implemented with discrete components. Analytical results and design procedures are verified in discrete and integrated prototypes.

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“…Recently, a frequency-divider topology based on nonlinear transmission lines NLTL has been proposed [3], having the advantages of zero static-power consumption, no free-running oscillation and a low division threshold. The combination of two types of L-varactor cells can enable a division in two distinct frequency bands [4].…”

Section: Introductionmentioning

confidence: 99%

Advances in the simulation of autonomous microwave circuits

Suárez

Sancho

Pontón

et al. 2016

2016 IEEE MTT-S Latin America Microwave Conference (LAMC)

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-Advances in the simulation of nonlinear microwave circuits of autonomous nature are presented, covering three relevant aspects: potential instability of power amplifiers under output mismatch effects, design of dual-band frequency dividers, with interest in multi-band communication systems, and oscillator phase-noise analysis. The instability under mismatch effects is predicted through the calculation of a 3-port scattering matrix, at three relevant sideband frequencies, which is obtained by linearizing the circuit about the large-signal steady-state solution. The dual-band divider is based on a parallel configuration, using two types of inductor-varactor cells, as well as a simultaneous design/optimization of two identical circuits, each operating at one of the two frequency bands. Finally, a new phase-noise analysis method able to predict the near-carrier spectral density in the presence of near-critical poles is described.

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Distributed Parametric Resonator: A Passive CMOS Frequency Divider

Cited by 24 publications

References 27 publications

A Phase-Interpolation and Quadrature-Generation Method Using Parametric Energy Transfer in CMOS

A Phase-Interpolation and Quadrature-Generation Method Using Parametric Energy Transfer in CMOS

Passive Subharmonic Generation Using Memoryless Nonlinear Circuits

Advances in the simulation of autonomous microwave circuits

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