طراحی VCO کلاس C با استفاده از سه‌برابر کننده برای دستیابی به فرکانس GHz 19.19 - GHz 17.8

20 GHz High Performance VCO Design Methodology

Q-band VCO for 77-GHz in

This paper includes Q-band VCO power injection-locked buffer for 77-GHz FM in 0.13-μm CMOS process. The center frequen VCO is 34.75-GHz with 1.6% tuning range. T noise performance shows -102.43 dBc/Hz frequency. The measured maximum single ou dBm and the ideal differential output power is dBm, owing to the injection-locked buffer w capability. The fabricated chip size is 0.51 × 0.1 consumption ...

2.4-GHz VCO DESIGN WITH COMPENSATION OF PROCESS VARIATIONS

This work presents voltage controlled oscillator (VCO) design intended for integrated transceiver of Bluetooth standard communication system, in which full compensation of process parameters variations can be obtained. This is realized by fitting on chip capacitance of LC resonator in. This capacitance consists of two independent parts first is used for coarse tuning of resonant frequency and t...

18-GHz Clock Distribution Using a Coupled VCO Array

This paper describes an 18-GHz coupled VCO array for low jitter and low phase deviation clock distribution. To reduce the skew, jitter and power consumption associated with clock distribution, the clock is generated by a one-dimensional VCO array in which the oscillating nodes of adjacent VCOs are directly connected with wires. The effects of the wire length and number of unit VCOs in the array...

Ultra-Wideband, Low-Power, Inductorless, 3.1-4.8 GHz, CMOS VCO

A low-power, inductorless, UWB CMOS voltage controlled oscillator is designed in 0.18 μm CMOS technology targeting to a UWBFM transmitter application. The VCO is a Double-Cross-Coupled Multivibrator and generates output frequencies ranging from 1.55 GHz to 2.4 GHz. A low-power frequency doubler based on a Gilbert cell, which operates in weak inversion, doubles the VCO tuning range from 3.1 GHz ...

Wide band RF MEMS VCO operating at 10 GHz

this paper presents a wide band RF MEMS VCO operating at 10 GHz. The designed VCO is based on high performances RF MEMS solenoid inductor. We have used HFSS software for design and analysis of different RF MEMS solenoid inductors. Best performances are obtained using SU8 dielectric substrate and copper coil: Qmax= 60.9, L = 2.6 nH at 10 GHz, and SRF= 20.8 GHz. Moreover, we have investigated the...