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Abstract:
设计了一个应用于GSM850/EGSM900/DCS1800/PCS1900四频带直接调制锁相环发射机的宽带电感电容压控振荡器,采用温度计编码控制开关电容阵列,获得了宽频率覆盖范围,通过优化获得了良好的相位噪声性能.整个电路采用TSMC 0.18μm工艺实现,工作电压为3 V.仿真结果表明:压控振荡器的频率范围3 055~4 176 MHz(31%),调谐增益19 MHz/V变化至44MHz/V,相对最大调谐增益的变化值为56.8%,频偏20 MHz处相位噪声达到-155.7 dBc/Hz以下,最大功耗30 mW.
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微电子学
ISSN: 1004-3365
CN: 50-1090/TN
Year: 2009
Issue: 2
Volume: 39
Page: 219-223
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 2
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