機載超短波接收機射頻前端系統(tǒng)級設(shè)計與仿真
電子技術(shù)應(yīng)用
張宇暉
中國西南電子技術(shù)研究所,四川 成都61003
摘要: 針對某型號超短波接收機研制需求,使用ADS(Advanced Design System)軟件對該超短波接收機射頻前端進行設(shè)計與仿真。通過分析接收機的性能需求,結(jié)合接收機主要工作原理和技術(shù)指標(biāo)選取二次變頻超外差接收機結(jié)構(gòu)做為實現(xiàn)方案,根據(jù)設(shè)計方案在ADS中建立了射頻前端的系統(tǒng)級仿真模型,并對射頻前端的噪聲系數(shù)、靈敏度、增益和互調(diào)失真等多個關(guān)鍵指標(biāo)進行了設(shè)計分析和仿真計算,結(jié)果表明該射頻前端各項指標(biāo)滿足設(shè)計要求。
中圖分類號:TN492 文獻標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.233885
中文引用格式: 張宇暉. 機載超短波接收機射頻前端系統(tǒng)級設(shè)計與仿真[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. 機載超短波接收機射頻前端系統(tǒng)級設(shè)計與仿真[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
機載超短波接收機在軍事通信系統(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,機載超短波接收機朝著寬帶、高靈敏度、高線性度以及高度集成化的方向發(fā)展。射頻前端處于整個接收機最前端,對整個接收機的性能起著至關(guān)重要的作用[1],因此對超短波接收機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。本文根據(jù)某型號超短波接收機技術(shù)指標(biāo)要求對射頻前端進行系統(tǒng)級設(shè)計,并利用ADS對射頻前端進行系統(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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