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3~6GHzSiGeHBTCascode低噪声放大器的设计

Keywords: 低噪声放大器,SiGe异质结双极晶体管,达林顿对

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Abstract:

基于Jazz0.35μmSiGe工艺设计一款满足UWB和IEEE802.11a标准的低噪声放大器.采用并联电感峰化技术与Cascode结构来展宽带宽;完成了芯片版图的设计,芯片面积为1.16mm×0.78mm;在带宽为3~6GHz范围内,最大增益为26.9dB,增益平坦度为±0.9dB.放大器的输入输出匹配良好,其回波损耗S11和S22均小于-10dB,输入与输出驻波比小于1.5,1dB压缩点为-22.9dBm.在整个频段内,放大器无条件稳定.

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