Oscillators are an artefact of Electrical Technology. By and large oscillator designing can be viewed as a ‘Scientific Art’. Furthermore, the use of computer in the designing process of oscillator added the wings to it. FuzzyLogic-Computer-Aided-Design (FLCAD) using MATLAB FUZZY TOOLBOX amalgamates the ability of Fuzzy Logic to model colloquial propositions involved in the oscillator design. De...

-This paper presents the IC design of a low power, wide tuning range and low phase noise voltage-controlled oscillator (VCO) in a standard 90-nm CMOS technology. The newly proposed current-reuse cross-connected pair is utilized as a negative conductance generator to compensate the energy loss of the resonator. The supply current is reduced by half compared to that of the conventional LC-VCO. An...

The excited-state properties in a series of coumarin solar cell dyes are investigated with a long-range-corrected (LC) functional which asymptotically incorporates Hartree-Fock exchange. Using time-dependent density functional theory (TDDFT), we calculate excitation energies, oscillator strengths, and excited-state dipole moments in each of the dyes as a function of the range-separation paramet...

We demonstrate the design of a novel voltage-controlled oscillator (VCO), which is based on a metal-oxide-semiconductor field-effect transistor (MOS) differential amplifier with active load. This VCO achieves low phase noise and wide tuning range. The phase noise is –120 dBc/Hz at 600 KHz offset from a 1.216 GHz carrier frequency. This value is comparable to that of a LC-based integrated oscill...

There are several 60 GHz transceiver architectures that have been explored and reported in the past employing the On Off Keying (OOK) Modulation. All of these designs are primarily based on the conventional bulk CMOS architecture. In this paper, we propose a power efficient double gate (DG) MOSFET based OOK Transmitter in 32 nm DG FinFET technology. The proposed novel OOK modulator consists of ...

We study a class of permutation-symmetric globally-coupled, phase oscillator networks on N -dimensional tori. We focus on the effects of symmetry and of the forms of the coupling functions, derived from underlying Hodgkin-Huxley type neuron models, on the existence, stability, and degeneracy of phase-locked solutions in which subgroups of oscillators share common phases. We also estimate domain...

This paper presents a rigorous phase noise analysis in the 1 f region for the differential CMOS LC-tank oscillator with both nMOS and pMOS switch pairs. A compact, closed-form phase noise equation is obtained, accounting for the noise contributions from both tank losses and transistors currents, which allows a robust comparison between LC oscillators built with either one or two switch pairs. T...

This paper presents the design of five-stage current controlled inductor-less ring oscillator that were simulated in Silterra 0.18um CMOS Technology with oscillation frequencies up to 5.99 GHz. The design uses cross coupled MOS devices along with active inductor (thus inductorless) and controlled by current source to aid in switching speed and to improve the noise parameters. The simulations sh...

LC oscillators are used most widely in wireless applications as their resonator can store energy, making its phase noise to carrier ratio given a certain power budget superior to ring oscillators. The tuning range of LC oscillators, especially at high frequencies where parasitic capacitance starts becoming significant, is another important design issue. This paper investigates the influence of ...