发明名称 |
METHOD AND DEVICE FOR DETERMINING SIDEBAND RATIO OF SUPERCONDUCTION MIXER USING COMB GENERATOR |
摘要 |
The present invention provides a method and device for determining the sideband ratio of a superconducting mixer using a comb generator. The method includes the steps of: (a) tentatively adjusting the sideband ratio of a mixer for calibration of an output of the comb generator; (b) determining the signal intensity of a pseudo-celestial signal oscillator for calibration of the output of the comb generator; (c) repeating the steps (a) and (b) to derive the relation between the sideband radio of the mixer for the comb-generator output calibration and the intensity of a pseudo-celestial signal; (d) calibrating the output of the comb generator; and (e) obtaining the sideband ratio of the mixer to be measured. <IMAGE>
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申请公布号 |
EP1420256(A1) |
申请公布日期 |
2004.05.19 |
申请号 |
EP20020728070 |
申请日期 |
2002.05.17 |
申请人 |
JAPAN SCIENCE AND TECHNOLOGY AGENCY |
发明人 |
FUKUI, YASUO |
分类号 |
G01R23/20;G01R31/00;G01R23/16;G01R31/28;H01L39/22;H03D7/00;(IPC1-7):G01R31/00 |
主分类号 |
G01R23/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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