线性压控振荡器在电子可变阻抗中的实现

IF 3.7 4区计算机科学 Q1 COMPUTER SCIENCE, THEORY & METHODS

Romanian Journal of Information Science and Technology Pub Date : 2023-03-24 DOI:10.59277/romjist.2023.1.05

K. Mathur, P. Venkateswaran, R. Nandi

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引用次数: 1

摘要

提出了利用电流反馈放大器（CFA）和乘模电流传送器（MMCC）复合有源块（ABB）实现电子可调谐电感器（L）和频率相关负电阻（D）型导抗的新方案。介绍了导抗在选择性滤波器和LC型线性压控正交振荡器（LVCQO）设计中的应用。基于PSPICE仿真和硬件设计的实验结果验证了振荡频率在线性范围（fo~13.6MHz）内，相位噪声系数对振荡波响应具有满意的影响。有源构建块（ABB）节点缺陷的影响被分析为微不足道。本文的新思想是在同一拓扑结构中可实现的两类导抗函数；给出了合适的频域选择性响应和实验结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Linear Voltage Controlled Oscillator Implementation in Electronically Variable Immittances

New realization schemes of electronically tunable inductor (L) and Frequency-Dependent Negative Resistance (D) type immittances using a Current Feedback Amplifier (CFA) and Multiplication Mode Current Conveyor (MMCC) composite active building block (ABB) are proposed. Applications of the immittances to the design of selective filters and LC-type linear voltage controlled quadrature oscillator (LVCQO) are presented. Experimental results based on PSPICE simulation and hardware design for a linear range of oscillation frequency (fo ~ 13.6MHz) with satisfactory phase-noise figure on the oscillator wave response had been verified. Effects of the Active Building Block (ABB)-nodal imperfections are analyzed to be insignificant. The new ideas in this article are two types of immittance functions realizable in the same topology; appropriate frequency-domain selective responses are also presented with experimentation results.

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来源期刊

Romanian Journal of Information Science and Technology 工程技术-计算机：理论方法

CiteScore

5.50

自引率

8.60%

发文量

审稿时长

>12 weeks

期刊介绍： The primary objective of this journal is the publication of original results of research in information science and technology. There is no restriction on the addressed topics, the only acceptance criterion being the originality and quality of the articles, proved by independent reviewers. Contributions to recently emerging areas are encouraged. Romanian Journal of Information Science and Technology (a publication of the Romanian Academy) is indexed and abstracted in the following Thomson Reuters products and information services: • Science Citation Index Expanded (also known as SciSearch®), • Journal Citation Reports/Science Edition.