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首页> 外文期刊>American journal of applied sciences >Design of A Microwave Amplifier for Wireless Application | Science Publications
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Design of A Microwave Amplifier for Wireless Application | Science Publications

机译：无线应用的微波放大器设计科学出版物

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> Problem statement: Low-Noise Amplifiers (LNA) are very indispensable components in the design of numerous types of communication receivers employed in microwave technology. This paper is presents the design and development of low bias(Vce = 8v, Ic =10 mA) single stage low noise microwave amplifier operating in 1.5GHZ frequency range, Gain 13dB ± 0.5dB, input/output return loss < -10dB, noise figure ≤2.0dB and used of Agilent AT-41486 bipolar junction transistor. Approach: The principal design target is to obtain a minimum noise figure while concomitantly achieving a maximum gain by presenting the optimum noise impedance (Zopt) which is characteristically implemented by adding a matching circuit between the source and the input of the amplifier. Results: The proposed low-noise amplifier for microwave wireless application is designed, simulated and optimized using Serenade Harmonica (by Ansoft Corporation) and Advance Design System (ADS) software by Agilent. Conclusion: In this paper a low-noise amplifier operated at 1.5 GHz. is designed because of the significant roles played in the field of microwave communication technology, which includes the application in the output stage of a transmitter where the signals needs to be strengthen before transmission.
机译： > 问题陈述：低噪声放大器（LNA）在微波技术中使用的多种类型的通信接收器的设计中是非常必不可少的组件。本文介绍了工作于1.5GHZ频率范围，增益13dB±0.5dB，输入/输出回波损耗<-10dB，噪声的低偏置（Vce = 8v，Ic = 10 mA）单级低噪声微波放大器的设计与开发图≤2.0dB，并使用Agilent AT-41486双极结型晶体管。 方法：主要设计目标是通过呈现最佳噪声阻抗（Z opt ）来获得最小噪声系数，并同时实现最大增益，该阻抗特征通常是通过添加一个放大器的源和输入之间的匹配电路。 结果：拟议的用于微波无线应用的低噪声放大器是使用Serenade Harmonica（Ansoft公司）和Agilent的Advance Design System（ADS）软件设计，仿真和优化的。 结论：本文介绍了一种工作在1.5 GHz的低噪声放大器。由于在微波通信技术领域中发挥了重要作用，因此进行了设计，其中包括在发射机的输出级中的应用，在该发射机的输出级中，信号需要在传输之前进行增强。

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