Ku頻帶CMOS壓控振盪器之設計及實現

Design and Implementation of Ku-Band CMOS Voltage-Controlled Oscillators

方浩宇(Hao-Yu Fang)

指導教授 ： 林佑昇

國立暨南國際大學/科技學院/電機工程學系/碩士(2007年)

https://doi.org/10.6837/NCNU.2007.00272

摘要

本論文主由是由理論介紹與電路實現這兩部份組成。

在理論介紹部份，我們介紹被動元件、振盪器原理及相位雜訊的模型。首先，對於壓控振盪器設計而言，電感與可變電容是重要的元件。其次，簡單的振盪器原理介紹已被描述。並且，利用兩個已描述的模型來分析相位雜訊。

在電路實現的部份，我們呈現了一個5GHz壓控振盪器、超諧耦合正交壓控振盪器及Ku頻帶壓控振盪器，其分別有低功率消耗、使用接地屏蔽層電感及使用切換式電容的特性。這些電路都是以台積電 0.18-μm 1P6M的互補式金氧半製程實現。

關鍵字

電感 ； 可變電容 ； 壓控振盪器 ； 接地屏蔽層

並列摘要

This thesis is mainly composed of two parts which introduction of fundamentals and implementation of the circuits.

In introduction of fundamentals, we introduce the passive devices, oscillator theory and phase noise model. First, the passive devices include the inductor and varactor which are important elements for VCO design. Secondly, a brief introduction on oscillator theory is described. Furthermore, two models are described to analyze the behavior of the phase noise.

In implementation of the circuits, we proposed a 5GHz VCO, superharmonic coupling quadrature VCO, and Ku-Band VCO and have characteristics of low power consumption, use PGS inductors, and use switched capacitor, respectively. These circuits are implemented in a TSMC 0.18-μm one-poly-six-metal (1P6M) CMOS process.

並列關鍵字

inductor ； varactor ； VCO ； quadrature ； PGS

參考文獻

[1] 曾彥儒，5-GHz之低功率變壓器回授LNA和VCO設計與實現，國立暨南國際大學電機工程研究所碩士論文，民國九十五年.

[2] B. Razavi, “RF MICROELECTRONICS,” PRENTICE HALL PTR, 1998.

[3] D. B. Leeson, “A simple model of feedback oscillator noise spectrum,” Proceedings of the IEEE Volume 54, Issue 2, Feb. 1966 Page(s):329 – 330.

[4] B. Razavi, “Design of Integrated Circuits for Optical Communications,” McGraw-Hill, 2003.

[5] J. Craninckx and M. S. J. Steyaret, “A 1.8-GHz Low-Phase-Noise CMOS VCO Using Optimized Hollow Spiral Inductors,” Solid-State Circuits, IEEE Journal of Volume 32, Issue 5, May 1997 Page(s):736 – 744.