本文選題：矢量網(wǎng)絡(luò)分析儀　切入點(diǎn)：噪聲測(cè)量　出處：《中國(guó)測(cè)試》2017年08期

【摘要】：為解決矢網(wǎng)中噪聲選件的計(jì)量問(wèn)題,分析當(dāng)前該類產(chǎn)品的測(cè)量原理,指出現(xiàn)有校準(zhǔn)方法無(wú)法對(duì)矢網(wǎng)中噪聲選件開(kāi)展計(jì)量的原因。參照當(dāng)前矢網(wǎng)的校準(zhǔn)方法,提出一種整體校準(zhǔn)方案,并報(bào)道該方案的基本要求�；跓o(wú)源器件的噪聲穩(wěn)定特點(diǎn),提出失配空氣線和衰減器作為檢驗(yàn)件的新型實(shí)現(xiàn)形式。在對(duì)比分析現(xiàn)有矢量和標(biāo)量?jī)煞N方法無(wú)源器件噪聲標(biāo)準(zhǔn)值計(jì)算方法的基礎(chǔ)上,報(bào)道檢驗(yàn)件標(biāo)準(zhǔn)值包含溫度信息的矢量計(jì)算方法。通過(guò)檢驗(yàn)件與低噪聲放大器級(jí)聯(lián)的方式,實(shí)現(xiàn)矢網(wǎng)中噪聲選件的整體校準(zhǔn)。該方案分別在Keysight公司和RS公司的產(chǎn)品中進(jìn)行試驗(yàn),測(cè)量頻段6~18 GHz,校準(zhǔn)結(jié)果的偏差分別為0.4 dB和0.6 dB。
[Abstract]:In order to solve the measurement problem of noise selection in vector network, this paper analyzes the measuring principle of this kind of products, and points out the reason why the existing calibration methods can not measure the noise selection in vector net.According to the current calibration method of vector network, a whole calibration scheme is proposed, and the basic requirements of the scheme are reported.Based on the characteristics of noise stability of passive devices, a new realization of mismatched air lines and attenuators is proposed.On the basis of comparing and analyzing the existing vector and scalar methods for calculating the noise standard values of passive devices, a vector calculation method containing temperature information is reported.The whole calibration of noise selection in vector network is realized by cascading the detector and low noise amplifier.The scheme has been tested in the products of Keysight and RS companies, and the calibration results are 0.4 dB and 0.6 dB, respectively.
【作者單位】： 中國(guó)電子科技集團(tuán)公司第十三研究所;羅德與施瓦茨(中國(guó))科技有限公司;
【分類號(hào)】：TB9;TM935
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本文編號(hào)：1727367