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RF集成电感的设计与寄生效应分析 总被引:5,自引:0,他引:5
分析了体硅 CMOS RF集成电路中电感的寄生效应 ,以及版图参数对电感品质因数 Q的影响 ,并通过Matlab程序模拟了在衬底电阻、金属条厚度、氧化层厚度改变时电感品质因数的变化 ,分析了不同应用频率时版图参数在寄生效应中所起的作用 ,得出了几条实用的设计原则并进行了实验验证 ,实验结果与模拟值符合得很好 ,表明此模拟方法与所得结论均可有效地用于指导射频 (RF)集成电路中集成电感的设计 相似文献
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利用采用FDTD(finite-difference time-domain method)方法的计算软件ISE-EMLAB对片上集成电感进行了模拟,并分析了电感的金属宽度、金属间隔、线圈外直径、线圈匝数等设计参数对电感的品质因数、电感值、电阻值等参数的频率特性的影响,进而提出了一种应用于片上集成电感的优化设计的方法. 相似文献
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利用采用FDTD(finite-difference time-domain method)方法的计算软件ISE-EMLAB对片上集成电感进行了模拟,并分析了电感的金属宽度、金属间隔、线圈外直径、线圈匝数等设计参数对电感的品质因数、电感值、电阻值等参数的频率特性的影响,进而提出了一种应用于片上集成电感的优化设计的方法. 相似文献
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针对砷化镓(GaAs)衬底上螺旋电感提出了一种改进形式的集总参数等效电路模型,该等效电路模型能很好地表征螺旋电感的高频效应.同时,应用电磁场全波分析方法对螺旋电感进行仿真,并分析各参数对电感性能的影响.从得到的散射参数中提取出有效电感、Q值和自谐振频率.基于参数优化方法提取等效电路模型中各元件值,并利用曲线拟合技术给出其相应的闭合表达式.这些表达式可用于射频和微波集成电路的设计,从而提高电路设计的性能和效率. 相似文献
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利用采用FDTD (finite-difference time-domain method) 方法的计算软件ISE-EMLAB对片上集成电感进行了模拟,并分析了电感的金属宽度、金属间隔、线圈外直径、线圈匝数等设计参数对电感的品质因数、电感值、电阻值等参数的频率特性的影响,进而提出了一种应用于片上集成电感的优化设计的方法. 相似文献
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Burghartz J.N. Edelstein D.C. Soyuer M. Ainspan H.A. Jenkins K.A. 《Solid-State Circuits, IEEE Journal of》1998,33(12):2028-2034
The design and optimization of spiral inductors on silicon substrates, the related layout issues in integrated circuits, and the effect of the inductor-Q an the performance of radio-frequency (RF) building blocks are discussed. Integrated spiral inductors with inductances of 0.5-100 nH and Q's up to 40 are shown to be feasible in very-large-scale-integration silicon technology. Circuit design aspects, such as a minimum inductor area, the cross talk between inductors, and the effect of a substrate contact on the inductor characteristics are addressed. Important RF building blocks, such as a bandpass filter, low-noise amplifier, and voltage-controlled oscillator are shown to benefit substantially from an improved inductor-Q 相似文献
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Guo L.H. Zhang Q.X. Lo G.Q. Balasubramanian N. Kwong D.-L. 《Electron Device Letters, IEEE》2005,26(9):619-621
Wafer-transfer technology (WTT) has been applied to transfer RF inductors from a silicon wafer to an opaque plastic substrate (FR-4). By completely eliminating silicon substrate, the high performance of integrated inductors (Q-factor > 30 for inductance /spl sim/3 nH with resonant frequency /spl sim/23 GHz) has been achieved. Based on the analysis of a modified /spl pi/-network model, our results suggest that the performance limitation is switched from being a synthetic mechanism of substrate and metal-ohmic losses on low resistivity Si-substrate to merely a metal-ohmic loss on FR-4. Thus, the inductor patterns, which are optimized currently for RFICs on silicon wafer, can be further optimized to take full advantage of the WTT on new substrate from the newly obtained design freedom. 相似文献
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Scuderi A. Biondi T. Ragonese E. Palmisano G. 《IEEE transactions on circuits and systems. I, Regular papers》2004,51(6):1203-1209
A lumped scalable model for spiral inductors in silicon bipolar technology has been developed. The effect of three different cross sections on inductor performance was first investigated by comparing experimental measurements. Using both the results of this analysis and three-dimensional electromagnetic simulation guidelines, several circular inductors were integrated on a radial patterned ground shield for model validation purposes. The model employs a novel equation for series resistance with only one fitting parameter extracted from experimental measurements. All other model elements were related to technological and geometrical data by using rigorous analytical equations. The model was validated using one- and two-port measured performance parameters of 45 integrated inductors, and excellent agreement was found for all considered geometries up to frequencies well above self-resonance. 相似文献
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Yun-Seok Choi Jun-Bo Yoon 《Electron Device Letters, IEEE》2004,25(2):76-79
The effect of metal thickness on the quality (Q-) factor of the integrated spiral inductor is investigated in this paper. The inductors with metal thicknesses of 5/spl sim/22.5 /spl mu/m were fabricated on the standard silicon substrate of 1/spl sim/30 /spl Omega//spl middot/cm in resistivity by using thick-metal surface micromachining technology. The fabricated inductors were measured at GHz ranges to extract their major parameters (Q-factor, inductance, and resistance). From the experimental analysis assisted by FEM simulation, we first reported that the metal thickness' effect on the Q-factor strongly depends on the innermost turn diameter of the spiral inductor, so that it is possible to improve Q-factors further by increasing the metal thickness beyond 10 /spl mu/m. 相似文献
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P. Pereira M. Helena Fino F. Coito M. Ventim-Neves 《Analog Integrated Circuits and Signal Processing》2012,73(1):47-55
In this paper an optimization-based approach for the design of RF integrated inductors is addressed. For the characterisation of the inductor behaviour the double ??-model is used. The use of this model is twofold. On one hand it enables the generation of the inductor characterisation in a few seconds. On the other hand its integration into the optimization procedure is straightforward. For the evaluation of the model element values analytical expressions based on technology parameters as well as on the device geometric characteristics are used. The use of a technology-based methodology for the evaluation of the model parameters grants the adaptability of the model to any technology. The inductor analytical characterization is integrated into an optimization-based tool for the automatic design of RF integrated inductors. This tool uses a modified genetic algorithm (MGA) optimization procedure, which has proved its validation in previous work. Due to the design parameter constraints nature as well as the topology constraints, discrete variables optimization techniques are used. The accuracy of the results is checked against a non-commercial software. 相似文献
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José R. Sendra Javier del Pino Antonio Hernández Benito González Javier García Andrés García-Alonso Antonio Nunez 《Analog Integrated Circuits and Signal Processing》2003,35(2-3):121-132
In this work we propose a modification to the conventional lumped equivalent circuit model for integrated inductors. Also the widely used parametric model is modified. The proposed models expand the frequency range where the integrated inductor behavior is accurately predicted. They are useful in developing automatic tools to assist the designers in selecting and automatically laying-out integrated inductors [1]. This work is based on measurements from integrated inductors fabricated in a standard silicon process. 相似文献
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Design issues for monolithic DC-DC converters 总被引:3,自引:0,他引:3
Musunuri S. Chapman P.L. Jun Zou Chang Liu 《Power Electronics, IEEE Transactions on》2005,20(3):639-649
This paper presents various ideas for integrating different components of dc-dc converter on to a silicon chip. These converters are intended to process power levels up to 0.5W. Techniques for integrating capacitors and design issues for MOS transistors are discussed. The most complicated design issue involves inductors. Expressions for trace resistance and inductance estimation of on-chip planar spiral inductor on top metal layer of CMOS process are compared. These inductors have high series resistance due to low metal trace thickness, capacitive coupling with substrate and other metal traces, and eddy current loss. As an alternative, a CMOS compatible three-dimensional (3-D) surface micromachining technology known as plastic deformation magnetic assembly (PDMA) is used to fabricate high quality inductors with small footprints. Experimental results from a monolithic buck converter using this PDMA inductor are presented. A major conclusion of this work is that the 3-D "post-process" technology is more viable than traditional integrated circuit assembly methods for realizing of micro-power converters. 相似文献