A 900 MHz low phase noise CMOS quadrature oscillator

被引：24
|
作者：
Cabanillas, J [1 ]
Dussopt, L [1 ]
López-Villegas, JM [1 ]
Rebeiz, GM [1 ]
机构：
[1] Univ Barcelona, Dept Elect SIC, E-08028 Barcelona, Spain
来源：
2002 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS (RFIC) SYMPOSIUM, DIGEST OF PAPERS | 2002年
关键词：
D O I：
10.1109/RFIC.2002.1011511
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：
A novel method for designing quadrature oscillators is presented. The technique is based on differential coupling at the second harmonic frequency of two separate oscillators. The desired coupling is obtained using an Integrated transformer which is attached to the common-mode nodes of two differential oscillators. A 900 MHz prototype has been Implemented in a 0.35 mum CMOS process. The oscillator core consumes 3 mA of current from a 1.7 V DC supply and results In an output power of -9 dBm per oscillator, and a measured phase noise of -116, -133 and -138 dBc/Hz at 100 KHz, 600 KHz and I MHz from the carrier, respectively. The proposed method is ideal for oscillators operating at 2.5 GHz, 3.5 GHz and 5 GHz.
引用
收藏
页码：63 / 66
页数：4
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