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Design, analysis and characterization of active HBT down conversion RF mixer for WLAN applications

机译:用于WLAN应用的有源HBT下变频RF混频器的设计,分析和表征

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This paper reports Si-Ge Hetro-junction Bipolar Transistor (HBT) BFP840FESD based active mixer for WLAN application with 70 MHz IF. The proposed design provides conversion gain around 10 dB, isolation around 30 dB, 1 dB gain compression point is around -7dBm, noise figure around 8 dB at operating frequency 2.4 GHz. Also a study of conversion gain variation with respect to various mixer parameters has been done in this work. The CAD based design and simulation is done using Advance design System (ADS). Verification of the design has been done through realizing hardware prototype on FR4 substrate. Measurement of fabricated prototype has been performed using Keysight Field-Fox spectrum analyzer N9918A. Simulated and measured results are in good agreement for the proposed work.
机译:本文报告了基于Si-Ge异质结双极晶体管(HBT)BFP840FESD的有源混频器,用于IF为70 MHz的WLAN应用。拟议的设计提供了约10 dB的转换增益,约30 dB的隔离度,1 dB的增益压缩点约为-7dBm,工作频率为2.4 GHz时的噪声系数约为8 dB。在这项工作中,还完成了关于各种混频器参数的转换增益变化的研究。基于CAD的设计和仿真是使用高级设计系统(ADS)完成的。通过在FR4基板上实现硬件原型来完成设计验证。已使用Keysight Field-Fox频谱分析仪N9918A对制造的原型进行了测量。模拟和测量结果与拟议工作完全吻合。

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