星載TWT放大器EPC的諧波分析
Analysis on Harmonic of EPC Used in Spaceborne TWTA
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摘要: 星載TWT放大器EPC由于其獨(dú)特的電路結(jié)構(gòu)使其諧波具有復(fù)雜的頻譜分布并對(duì)其工作的可靠性有很大的影響。該文應(yīng)用調(diào)制理論分析了EPC調(diào)制諧波的成因，給出了其頻譜分布的計(jì)算結(jié)果并與實(shí)際測(cè)量數(shù)據(jù)進(jìn)行了對(duì)比，其結(jié)論對(duì)降低EPC諧波造成的EMI，進(jìn)而為提高TWTA的可靠性提供了依據(jù)。
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關(guān)鍵詞:
- 諧波;調(diào)制;EPC;可靠性
Abstract: Due to the circuit topology of EPC used in spaceborne TWT amplifier, its harmonic has complex spectrum and great effect on reliability. In this paper, the modulation theory is applied to analyze the cause and calculate the spectrum of harmonic of EPC, also the experimental results are given. The conclusion of this paper will help both in suppressing the harmonic of EPC and improving the reliability of TWTA. -
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