Layout Design of LC VCO with Current Mirror Using 0.18 µm Technology

Layout Design of LC VCO with Current Mirror Using 0.18 µm Technology

This paper presents a new design of complementary oxide semiconductor voltage controlled oscillator (CMOS VCO) for improve tuning range and phase noise with low power consumption. Design is area efficient and easy to implement. Design is carried out in cadence and schematic editor using 180 nm technology. Simulation is done and performance results are reported. Results have been compared with e...

Design and Simulation of an X Band LC VCO

In this paper, a systematic method for the circuit parameters design of a monolithic LC Voltage Controlled Oscillator (VCO) is reported. The method is based on the negative resistance generation technique. As a result, a VCO has been designed in 0.18um CMOS technology using a conventional VCO structure to obtain the optimum values for the phase noise and power consumption. The simulation result...

Implementation of a Power Optimized Lc Vco & Mixer Co-design

Design of a 4.2–5.4 GHz Differential LC VCO Using 0.35 lm SiGe BiCMOS Technology for IEEE 802.11a Applications

In this paper, a 4.2–5.4 GHz, Gm LC voltage controlled oscillator (VCO) for IEEE 802.11a standard is presented. The circuit is designed with AMS 0.35 lm SiGe BiCMOS process that includes high-speed SiGe Heterojunction Bipolar Transistors (HBTs). According to post-layout simulation results, phase noise is 110.7 dBc/Hz at 1 MHz offset from 5.4 GHz carrier frequency and 113.4 dBc/Hz from 4.2 GHz c...

A Design Optimization of Low-Phase-Noise LC-VCO Using Multiple-Divide Technique

The multiple-divide technique, using the multiratio frequency divider, has a possibility to improve FoM of VCO. This paper proposes a design optimization of LC-VCO using the multiple-divide technique. In the simulated results using 90-nm CMOS model parameters, the optimum frequency range, achieving better than −187.0 dBc/Hz of FoM, can be extended from 6.5∼12.5 GHz to 1.5∼12.5 GHz. The proposed...