星載行波管放大器雜波譜抑制的研究
Study of spurious spectrum suppression of spaceborne TWTA
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摘要: 該文給出了星載行波管放大器(TWTA)雜波譜行為觀察的結(jié)果,分析了其形成機(jī)制,探討了雜波譜的抑制方法.研究表明只有從TWT設(shè)計(jì)和EPC電路設(shè)計(jì)兩方面采取措施,才有可能獲得高純頻譜。在此基礎(chǔ)上,將衛(wèi)星用TWTA雜波譜振幅降低了10-15dB。
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關(guān)鍵詞:
- 雜波譜; 星載TWTA; EPC; TWT
Abstract: This paper presents observed results of spurious spectrum of TWTA used for satel-lite. The rnechanism of spurious spectrum formation is analysed and the rnethods of its sup-pression are discussed. It is shown from the study that in order to obtain pure spectrum, the measures rnust be taken for both design of TWT and EPC circuit. Based on this study, the aruplitude of spurious spectrum of spaceborne TWTA has been reduced 10-15dB -
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