A Voltage-Controlled Oscillator Based on Negative Inductance Converter

被引：0
|
作者：
Ulansky, V. V. [1 ]
Elsherif, H. M. [2 ]
机构：
[1] Natl Aviat Univ, Dept Elect, Kiev, Ukraine
[2] Tripoli Univ, Dept Elect & Elect Engn, Tripoli, Libya
来源：
2015 IEEE 35TH INTERNATIONAL CONFERENCE ON ELECTRONICS AND NANOTECHNOLOGY (ELNANO) | 2015年
关键词：
voltage-controlled oscillator; operational amplifier; slew rate; varactor; phase-noise; distortion; VCO;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper describes a novel operational amplifier (OPA) voltage controlled oscillator (VCO) circuit which can be used in frequency range exceeding unity gain bandwidth. The VCO topology is based on the operational-amplifier- negative-inductance converter. The oscillator architecture, mathematical modeling, simulation and measurement results are presented. The designed VCO uses an ultra low noise wideband OPA LMH6624, covers frequency band between 786.3 MHz and 1.0 GHz and exhibits a maximum in-band phase noise of - 141.3 dBc/Hz at 1 MHz offset from carrier frequency. Power consumption of the VCO core is 57 mW from a +/- 2.5 V power supply. The simulation results are verified by implementing the oscillator that generates a low-noise signal.
引用
收藏
页码：508 / 511
页数：4
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