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安捷伦公司的新款E4991A t射频阻抗/材料分析仪可在1MHz到3GHz内进行mΩ到kΩ范围的阻抗测量，这对测量无线应用器件的特性是非常理想的。无线应用包括蓝牙、无线局域网（WLAN)以及宽带码分多址（WCDMA)系统。这种分析仪也实现了包括介电常数(er*)和磁导率（mr*)等材料特性在较
Agilent’s new E4991A RF impedance / material analyzer measures impedance in the mΩ to kΩ range from 1MHz to 3GHz, making it ideal for measuring the characteristics of wireless applications. Wireless applications include Bluetooth, Wireless Local Area Network (WLAN), and Wideband Code Division Multiple Access (WCDMA) systems. This analyzer also achieved, including the dielectric constant (er *) and permeability (mr *) and other material properties in the more