发明名称 |
Wide band, low noise and high resolution synthesizer |
摘要 |
<p>A frequency synthesizer includes a direct digital synthesizer (DDS), a digital-to-analog converter for converting the output of the DDS to a DDS output signal, a first bandpass filter for filtering the DDS output signal, a single side band mixer for mixing the filtered DDS output signal with a mixing frequency signal, a divider for dividing the mixer output, a second bandpass filter for filtering the mixer output, and a phase lock loop for turning the filtered mixer output into a signal of the desired frequency. This frequency synthesizer combines the high resolution of a DDS with high bandwidth and low noise. <IMAGE></p> |
申请公布号 |
EP1104112(A1) |
申请公布日期 |
2001.05.30 |
申请号 |
EP20000204071 |
申请日期 |
2000.11.17 |
申请人 |
SHIRON SATELLITE COMMUNICATIONS (1996) LTD. |
发明人 |
SHALOM, AMIR;KAUFMAN, ZOHAR |
分类号 |
H03B21/02;H03L7/18;(IPC1-7):H03L7/18;H03L7/23;H03L7/185 |
主分类号 |
H03B21/02 |
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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