2.4 GHz / 3.5 GHz Dual-Band Wide-Tuning-Range Quadrature VCO using Harmonic-Injection Coupling Technique

被引：0

作者：

Wei, Muh-Dey ^{[1
]}

Chang, Sheng-Fuh ^{[3
]}

Zhang, Ye ^{[2
]}

Yang, Yung-Jhih ^{[4
]}

Negra, Renato ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, UMIC Res Ctr, Mixed Signal CMOS Circuits, D-52056 Aachen, Germany

[2] Rhein Westfal TH Aachen, Chair Integrated Analog Circuits & RF Syst, D-52056 Aachen, Germany

[3] Natl Chung Cheng Univ, Dept Commun Engn, Dept Elect Engn, Chiayi 62102, Taiwan

[4] Taiwan Semicond Mfg Co, Hsinchu 300, Taiwan

来源：

2014 IEEE 14TH TOPICAL MEETING ON SILICON MONOLITHIC INTEGRATED CIRCUITS IN RF SYSTEMS (SIRF) | 2014年

关键词：

Quadrature voltage controlled oscillator (QVCO); Wide tuning range; Switched inductor; Harmonic injection;

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：

In this paper, a dual-band wide-tuning-range quadrature VCO (QVCO) using a harmonic-injection coupling technique is proposed. The tuning range of a switched-capacitor and a switched-inductor LC-tank are investigated. Based on the investigation, a switched-inductor tank is employed since it provides a wide tuning range. A harmonic-injection coupling technique, which eliminates the noise sources of coupling transistors, is applied to generate the quadrature outputs. The QVCO is designed for 3.5GHz WiMAX and 2.4 GHz ISM applications. A tuning range of 24.9% and 20.7% are obtained. The measured phase noise is -123.5 dBc/Hz and -125.9 dBc/Hz at a 1 MHz offset, respectively. Significant FOMT of -191.7 and -192.4 are achieved.

引用

页码：107 / 109

页数：3

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