| 摘要 |
PROBLEM TO BE SOLVED: To provide a YIG filter tuning system which is suitable for taking alignment of the central frequency of the YIG filter and a target frequency and does not depend on addition of a CW signal to the YIG filter. SOLUTION: The YIG filter tuning system includes: a YIG filter 12 in a filter passband having an associated filter bandwidth; a noise source 14 selectively coupled to an input of the YIG filter 12; and a receiver 16 coupled to an output of the YIG filter 12 in a measurement passband having an associated measurement bandwidth that is less than the filter bandwidth. When the noise source 14 is coupled to the input of the YIG filter 12, the receiver 16 acquires a series of measurements in the measurement passband and the filter passband at the output of the YIG filter 12. COPYRIGHT: (C)2007,JPO&INPIT
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