发明名称 |
Measuring device, in particular vectorial network analyzer, with separate oscillators |
摘要 |
A measuring device (e.g., a vectorial network analyzer) by means of at least two ports can be connected to a device under test and has associated excitation/receiving units (ERUs), each thereof having one port. At least one ERU has a signal generator, which can apply an excitation signal onto a device under test. Each ERU possesses two receiving apparatuses (each with a mixer in connection with an oscillator signal) to receive the excitation signal, the reflected signal from the associated port or the signal transmitted to the associated port and converts said signal into an intermediate signal. Each ERU exhibits its own oscillator separate from the signal generator, and generates the oscillator signal for the mixer of the receiving apparatus of the ERU, whereby the frequency and/or phase of the oscillator signals, can be adjusted independently of the frequency and/or phase of oscillator signals of the oscillators of other ERUs.
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申请公布号 |
US6970000(B2) |
申请公布日期 |
2005.11.29 |
申请号 |
US20030681535 |
申请日期 |
2003.10.07 |
申请人 |
ROHDE & SCHWARTZ GMBH & CO. KG |
发明人 |
EVERS CHRISTIAN;KRAUS PETER;BOSS HERMANN |
分类号 |
G01R23/14;G01R23/173;G01R27/28;(IPC1-7):G01R27/06 |
主分类号 |
G01R23/14 |
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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