A 25% Tuning Range 7.5–9.4 GHz Oscillator With 194 FoM<i> _T </i> and 400 kHz 1/f₃ Corner in 40nm CMOS Technology

10-GHz wide tuning-range linear voltage- controlled oscillator

Monolithically integrated 40GHz pulse source with >40nm wavelength tuning range

A monolithically integrated device combines 40 GHz dual mode-locked operation with the wide tuning range (>40nm) of sampled-grating DBR lasers, while further being integrated to an SOA and a potentially high-speed modulator. OCIS codes: (250.5300) Photonic integrated devices; (140.3600) Lasers, tunable; (140.4050) Mode-locked lasers

A Cmos Current Controlled Ring Oscillator with Wide and Linear Tuning Range

A new CMOS current controlled ring oscillator is investigated. It is based on a 3 stage ring oscillator. Each stage uses a simple NMOS for switching a current source to charge a capacitor and discharging it thereby generating a ramp output. Its oscillation frequency depends on the current source. This simple circuit can have a wide tuning range but has some non-linearity problem. A modification...

A CMOS Ring Oscillator VCO with Quadrature Outputs and High-Tuning Range

This paper presents the design of a new four-stage ring oscillator with quadrature outputs using a 0.13μm CMOS 1P8M technology. The oscillator utilizes feed-forward technique and negative resistance to reduce the delay per stage and provides high frequencies. Employing single PMOS transistor to vary the load impedance allows reaching ultra-wide tuning range. The output frequency ranges from 0.8...

A 60 GHz 130 nm CMOS VCO with Ultra Wide Tuning Range

A 60 GHz cross-coupled differential voltage controlled oscillator is designed in 130 nm CMOS technology. The tuning range is from 57GHz to 66GHz, with an estimated phase noise of -93 dBc/Hz at 1 MHz offset. The oscillator employs fundamental 30 GHz VCO followed by doublers and buffers. Key-Words: CMOS, 60GHz, VCO, wide tuning range, phase noise