机载超短波接收机射频前端系统级设计与仿真
电子技术应用
张宇晖
中国西南电子技术研究所,四川 成都61003
摘要: 针对某型号超短波接收机研制需求,使用ADS(Advanced Design System)软件对该超短波接收机射频前端进行设计与仿真。通过分析接收机的性能需求,结合接收机主要工作原理和技术指标选取二次变频超外差接收机结构做为实现方案,根据设计方案在ADS中建立了射频前端的系统级仿真模型,并对射频前端的噪声系数、灵敏度、增益和互调失真等多个关键指标进行了设计分析和仿真计算,结果表明该射频前端各项指标满足设计要求。
中圖分類號:TN492 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.233885
中文引用格式: 張宇暉. 機(jī)載超短波接收機(jī)射頻前端系統(tǒng)級設(shè)計(jì)與仿真[J]. 電子技術(shù)應(yīng)用,2024,50(1):83-86.
英文引用格式: Zhang Yuhui. The system-level design and simulation of RF front-end in airborn ultra-short wave receiver[J]. Application of Electronic Technique,2024,50(1):83-86.
中文引用格式: 張宇暉. 機(jī)載超短波接收機(jī)射頻前端系統(tǒng)級設(shè)計(jì)與仿真[J]. 電子技術(shù)應(yīng)用,2024,50(1):83-86.
英文引用格式: Zhang Yuhui. The system-level design and simulation of RF front-end in airborn ultra-short wave receiver[J]. Application of Electronic Technique,2024,50(1):83-86.
The system-level design and simulation of RF front-end in airborn ultra-short wave receiver
Zhang Yuhui
Southwest China Institute of Electronic Technology, Chengdu 610036, China
Abstract: In this paper, according to the needs of airborn ultra-short wave receiver, the system-level design and simulation of RF front-end circuit is carried out by using Advanced Design System(ADS). By analyzing the performance requirements of ultra-short wave receiver, combined with the main working principle and technical indicators of the receiver, the structure of the dual-conversion superheterodyne receiver is selected as the implementation scheme. The system level simulation model of RF front-end of receiver is established in ADS. The key indicators of RF front-end of the design such as noise figure, sensitivity, gain and intermodulation distortion are designed, analyzed and simulated by ADS. The simulation results show that the RF front-end meets the requirements of the design.
Key words : UHF receiver;RF front-end;ADS
引言
機(jī)載超短波接收機(jī)在軍事通信系統(tǒng)及民用通信系統(tǒng)都有著廣泛應(yīng)用,近年來隨著高性能集成芯片的不斷發(fā)展,機(jī)載超短波接收機(jī)朝著寬帶、高靈敏度、高線性度以及高度集成化的方向發(fā)展。射頻前端處于整個(gè)接收機(jī)最前端,對整個(gè)接收機(jī)的性能起著至關(guān)重要的作用[1],因此對超短波接收機(jī)射頻前端的性能需求也在不斷提升。ADS(Advanced Design System)軟件是美國Agilent公司研發(fā)的通信系統(tǒng)仿真軟件,可用于射頻電路級和系統(tǒng)級的仿真設(shè)計(jì)。本文根據(jù)某型號超短波接收機(jī)技術(shù)指標(biāo)要求對射頻前端進(jìn)行系統(tǒng)級設(shè)計(jì),并利用ADS對射頻前端進(jìn)行系統(tǒng)級建模與仿真。
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作者信息:
張宇暉
(中國西南電子技術(shù)研究所,四川 成都61003)

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