機載超短波接收機射頻前端系統級設計與仿真
電子技術應用
張宇暉
中國西南電子技術研究所,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計與仿真。通過分析接收機的性能需求,結合接收機主要工作原理和技術指標選取二次變頻超外差接收機結構做為實現方案,根據設計方案在ADS中建立了射頻前端的系統級仿真模型,并對射頻前端的噪聲系數、靈敏度、增益和互調失真等多個關鍵指標進行了設計分析和仿真計算,結果表明該射頻前端各項指標滿足設計要求。
中圖分類號:TN492 文獻標志碼: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級設計與仿真[J]. 電子技術應用,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級設計與仿真[J]. 電子技術應用,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及民用通信系統都有著廣泛應用,近年來隨著高性能集成芯片的不斷發展,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公司研發的通信系統仿真軟件,可用于射頻電路級和系統級的仿真設計。本文根據某型號超短波接收機技術指標要求對射頻前端進行系統級設計,并利用ADS對射頻前端進行系統級建模與仿真。
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作者信息:
張宇暉
(中國西南電子技術研究所,四川 成都61003)
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