Nonlinear/electromagnetic co-design of MIMO and UWB radio links

CEM'11 Computational Electromagnetics International Workshop Pub Date : 2011-10-17 DOI:10.1109/CEM.2011.6047328

D. Masotti, A. Costanzo, F. Mastri, M. Aldrigo, V. Rizzoli

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引用次数: 1

Abstract

The purpose of the paper is to demonstrate a general and rigorous computer-aided design (CAD) procedure that can potentially provide a systematic answer to the needs of modern circuit-level microwave system simulation/design by combining nonlinear, electromagnetic (EM), and propagation analysis tools. As examples of application, a systematic approach to a full CAD-based treatment of multi-input multi-output (MIMO) and ultra wide band (UWB) links is presented. The EM theory allows to evaluate a set of Norton equivalent generators to derive a circuit description of the receiver excitation: in the MIMO case one generator for each ray coming from each transmitting antenna; in the UWB case one generator for each harmonic frequency used to describe the spectrum of the impulse-radio (IR)-UWB signal. For the first time, highly-complex radio frequency (RF) links can be otpimized by means of the rigorous circuit-level CAD tool here presented: the selection of both the optimum distance between the receiving antennas and the optimum transmitted pulse shape is numerically performed in the MIMO and UWB case, respectively.

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MIMO和UWB无线电链路的非线性/电磁协同设计

本文的目的是展示一种通用的、严格的计算机辅助设计(CAD)程序，该程序可以通过结合非线性、电磁(EM)和传播分析工具，为现代电路级微波系统仿真/设计的需要提供系统的答案。作为应用实例，提出了一种基于cad的多输入多输出(MIMO)和超宽带(UWB)链路的系统处理方法。EM理论允许对一组诺顿等效发生器进行评估，从而推导出接收机激励的电路描述:在MIMO情况下，每个发射天线发出的每条射线对应一个发生器;在UWB情况下，每个谐波频率对应一个发生器，用于描述脉冲无线电(IR)-UWB信号的频谱。高度复杂的射频(RF)链路首次可以通过本文提出的严格的电路级CAD工具进行优化:分别在MIMO和UWB情况下，对接收天线之间的最佳距离和最佳发射脉冲形状进行了数值选择。

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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CEM'11 Computational Electromagnetics International Workshop

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