應用於微波及毫米波壓控 振盪器之設計與實現振盪器之設計與實現

Design and Implementation of Microwave and Millimeter-wave Voltage Controlled Oscillators

鍾杰穎(Jie-Ying Zhong)

指導教授 ： 王紳

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2012年)

https://doi.org/10.6841/NTUT.2012.00692

摘要

現代通訊系統中，低相位雜訊的壓控振盪器是不可或缺的元件，由於各種可攜式與普及的無線應用，促使我們設計小面積及低成本系統，因此，如何設計小面積以及低成本並同時具有低相位雜訊的振盪器是一個值得探討的重點。
本論文的主題在於使用台積電0.18-mm製程，設計並實現微波及毫米波振盪器。論文主要可分為三部分。第一部份介紹相位雜訊的產生並討論變壓器型LC振盪器的原理。第二部分提出了一個新式變壓器型LC雙頻段壓控振盪器其晶片面積為0.3 mm2且在相同功率消耗下，相位雜訊在操作於11 GHz 和19 GHz時，偏移中心頻率為1-MHz處，分別為-102 dBc/Hz 和 -90 dBc/Hz。振盪器可調的範圍在11 GHz時為13%，19GHz時為6%。論文的第三部分，介紹了雙推式振盪器結構的原理及優點並提出了一個低相位雜訊雙推式變壓器型LC壓控振盪器應用於Ka頻段中。此雙推式振盪器是利用最新的覆晶技術整合0.18-?m COMS製程實現一個低雜訊的壓控振盪器，且其相位雜訊在操作於32 GHz，偏離中心頻率為1-MHz的地方，相位雜訊達到了-106 dBc/Hz此時的整體電路的功耗為16.24 mW。可調電壓的範圍為6%。整體振盪電路的FOM值達到了-182。

關鍵字

雙頻段 ； Ka-Band ； 變壓器 ； 壓控振盪器

並列摘要

A low phase noise VCO is an important building block in modern communication systems. The portable and universal wireless applications drive us to investigate low area consumption and low cost system. Therefore, to design a low phase noise and compact VCO is always a challenge.
The target of the thesis is to design and implement VCOs in microwave and millimeter-wave region using 0.18-?m Complementary Metal-Oxide Semiconductor (CMOS) technology. The thesis is divided three parts. The first part introduces the basic of phase noise and discusses the theory of transformer-based LC-tank VCOs. The second part proposes a new topology of switchable transformer-based complementary dual-band VCO which achieves a chip area of 0.3 mm2 and phase noise of -102 dBc/Hz and -90 dBc/Hz at 1-MHz offset at 11 GHz and 19 GHz respectively with the same power consumption. The tuning range of this dual-band VCO is 13% at 11 GHz and 6% at 19 GHz. The theory and advantages of push-push VCO are introduced and a push-push transformer-based Ka-band VCO with low phase noise is proposed in the third part of the thesis. The push-push VCO is integrated in 0.18-?m CMOS with the latest process of integrated passive device which is proposed in the third part of the thesis. The phase noise achieves -106 dBc/Hz at 1-MHz offset at 32 GHz, and power consumption is 16.24 mW. The tuning range of this VCO is 6% and FOM is -182.

並列關鍵字

Dual-Band ； Ka-Band ； Transformer ； Voltage-Controlled Oscillator

參考文獻

References

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