Design of a new low-phase-noise millimetre-wave quadrature voltage-controlled oscillator

被引：3

作者：

Kashani, Zeinab ^{[1
]}

Nabavi, Abdolreza ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Fac Elect & Comp Engn, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF ELECTRONICS | 2018年 / 105卷 / 07期

关键词：

Millimetre-wave frequency; phase-noise; Colpitts oscillator; quadrature VCO; figure-of-merit; NM CMOS TECHNOLOGY; X-BAND; GHZ; COLPITTS; VCOS;

D O I：

10.1080/00207217.2018.1440424

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 presents a new circuit topology of millimetre-wave quadrature voltage-controlled oscillator (QVCO) using an improved Colpitts oscillator without tail bias. By employing an extra capacitance between the drain and source terminations of the transistors and optimising circuit values, a low-power and low-phase-noise (PN) oscillator is designed. For generating the output signals with 90 degrees phase difference, a self-injection coupling network between two identical cores is used. The proposed QVCO dissipates no extra dc power for coupling, since there is no dc-path to ground for the coupled transistors and no extra noise is added to circuit. The best figure-of-merit is -188.5, the power consumption is 14.98-15.45mW, in a standard 180-nm CMOS technology, for 58.2GHz center frequency from 59.3 to 59.6GHz. The PN is -104.86 dBc/Hz at 1-MHz offset.

引用

页码：1217 / 1235

页数：19

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