用于甚低频接收机的高增益射频放大器

2014 6th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2014-10-01 DOI:10.1109/ICITEED.2014.7007925

R. Putera, Kusnandar, A. Najmurrokhman, Sunubroto, Chairunnisa, A. Munir

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引用次数: 6

摘要

由于甚低频(VLF)波在雷电、地震和天气等自然现象研究中的广泛应用，因此非常需要一种高增益的甚低频(VLF)接收机。本文讨论了一种用于VLF接收机的高增益射频放大器的设计、实现和性能表征。该放大器采用2SK170的结场效应晶体管(JFET)和OP27的运算放大器(OpAmp)设计，旨在工作在低于50kHz的频率范围内。在获得最佳设计后，将设计好的放大器部署在印刷电路板上进行硬件实现。实验表征表明，所实现放大器在19.8kHz频率下的实测增益满足设计标准，为46.003dB, 1-dB压缩点为-24dBm。

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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High gain RF amplifier for very low frequency receiver application

Due to the wide usage of very low frequency (VLF) wave for research on natural phenomena such as lightning, earthquake, and weather, a receiver for VLF application particularly with high-gain is absolutely required. This paper discusses about designing, realizing and characterizing a high gain radio frequency (RF) amplifier for VLF receiver application. The proposed amplifier which is designed using a junction field-effect transistor (JFET) of 2SK170 and an operational amplifier (OpAmp) of OP27 is intended to work at frequency range below 50kHz. After achieving the optimum design, the hardware realization is then carried out by deploying the designed amplifier on a printed circuit board. From the experimental characterization, it shows that the measured gain of realized amplifier at frequency of 19.8kHz satisfies with the design criteria and is 46.003dB with 1-dB compression point of -24dBm.

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来源期刊

2014 6th International Conference on Information Technology and Electrical Engineering (ICITEE)

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