The method of multi-bias capacitance voltage measurement is presented. The physical meaning of gate-source and gate-drain capacitances in AlGaN/GaN HEMT and the variations in them with different bias conditions are di...The method of multi-bias capacitance voltage measurement is presented. The physical meaning of gate-source and gate-drain capacitances in AlGaN/GaN HEMT and the variations in them with different bias conditions are discussed. A capacitance model is proposed to reflect the behaviors of the gate-source and gate-drain capacitances, which shows a good agreement with the measured capacitances, and the power performance obtains good results compared with the measured data from the capacitance model.展开更多
提出了一种高温 SOI CMOS电路设计方法—自动体偏置多阈值电压 SOI CMOS(简称 ABB－MT－ SOI CMOS： Auto－ Bulk－ Biased Multi－ Threshold SOI CMOS)电路。文中主要讨论了 ABB－MT－ SOI CMOS电路的结构与工作原理 ,设计与布局等，...提出了一种高温 SOI CMOS电路设计方法—自动体偏置多阈值电压 SOI CMOS(简称 ABB－MT－ SOI CMOS： Auto－ Bulk－ Biased Multi－ Threshold SOI CMOS)电路。文中主要讨论了 ABB－MT－ SOI CMOS电路的结构与工作原理 ,设计与布局等，给出了内部电路电压和电流的模拟结果，并简述了该电路的应用前景。展开更多
基于GaAs赝高电子迁移率晶体管（PHEMT）工艺,研制了一种5-12 GHz的收发一体多功能芯片（T/R MFC）,其具有噪声低、增益高和中等功率等特点。电路由低噪声放大器和多个单刀双掷（SPDT）开关构成。为了获得较低的噪声系数和较大的增益,...基于GaAs赝高电子迁移率晶体管（PHEMT）工艺,研制了一种5-12 GHz的收发一体多功能芯片（T/R MFC）,其具有噪声低、增益高和中等功率等特点。电路由低噪声放大器和多个单刀双掷（SPDT）开关构成。为了获得较低的噪声系数和较大的增益,低噪声放大器采用自偏置三级级联拓扑结构;为了获得较高的隔离度和较低的插入损耗,SPDT开关采用串并联结构。测试结果表明,在5-12 GHz频段内,收发一体多功能芯片的小信号增益大于26 d B,噪声系数小于4 d B,输入/输出电压驻波比小于2.0,1 d B压缩点输出功率大于15 d Bm。其中,放大器为单电源5 V供电,静态电流小于120 m A;开关控制电压为-5 V/0 V。芯片尺寸为2.65 mm×2.0 mm。展开更多
基金Project supported by the National Basic Research Program of China(No.2010CB327503)the National Natural Science Foundation of China(No.60890191)
文摘The method of multi-bias capacitance voltage measurement is presented. The physical meaning of gate-source and gate-drain capacitances in AlGaN/GaN HEMT and the variations in them with different bias conditions are discussed. A capacitance model is proposed to reflect the behaviors of the gate-source and gate-drain capacitances, which shows a good agreement with the measured capacitances, and the power performance obtains good results compared with the measured data from the capacitance model.
文摘提出了一种高温 SOI CMOS电路设计方法—自动体偏置多阈值电压 SOI CMOS(简称 ABB－MT－ SOI CMOS： Auto－ Bulk－ Biased Multi－ Threshold SOI CMOS)电路。文中主要讨论了 ABB－MT－ SOI CMOS电路的结构与工作原理 ,设计与布局等，给出了内部电路电压和电流的模拟结果，并简述了该电路的应用前景。
文摘基于GaAs赝高电子迁移率晶体管（PHEMT）工艺,研制了一种5-12 GHz的收发一体多功能芯片（T/R MFC）,其具有噪声低、增益高和中等功率等特点。电路由低噪声放大器和多个单刀双掷（SPDT）开关构成。为了获得较低的噪声系数和较大的增益,低噪声放大器采用自偏置三级级联拓扑结构;为了获得较高的隔离度和较低的插入损耗,SPDT开关采用串并联结构。测试结果表明,在5-12 GHz频段内,收发一体多功能芯片的小信号增益大于26 d B,噪声系数小于4 d B,输入/输出电压驻波比小于2.0,1 d B压缩点输出功率大于15 d Bm。其中,放大器为单电源5 V供电,静态电流小于120 m A;开关控制电压为-5 V/0 V。芯片尺寸为2.65 mm×2.0 mm。
