An enhancement mode p-GaN gate AlGaN/GaN HEMT is proposed and a physics based virtual source charge model with Landauer approach for electron transport has been developed using Verilog-A and simulated using Cadence Sp...An enhancement mode p-GaN gate AlGaN/GaN HEMT is proposed and a physics based virtual source charge model with Landauer approach for electron transport has been developed using Verilog-A and simulated using Cadence Spectre,in order to predict device characteristics such as threshold voltage,drain current and gate capacitance.The drain current model incorporates important physical effects such as velocity saturation,short channel effects like DIBL（drain induced barrier lowering）,channel length modulation（CLM）,and mobility degradation due to self-heating.The predicted Id–V（ds）,Id–V（gs）,and C–V characteristics show an excellent agreement with the experimental data for both drain current and capacitance which validate the model.The developed model was then utilized to design and simulate a single-pole single-throw（SPST）RF switch.展开更多
为了解决W波段接收机保护开关和发射机调制开关芯片问题,基于0.1 mm厚2英寸熔制石英薄膜电路工艺,研制出了应用于W波段PIN二极管单刀单掷开关。为了考察开关性能的一致性,随机抽取了3个SPST开关作了测试,测试结果为,在76-85 GHz频率范围...为了解决W波段接收机保护开关和发射机调制开关芯片问题,基于0.1 mm厚2英寸熔制石英薄膜电路工艺,研制出了应用于W波段PIN二极管单刀单掷开关。为了考察开关性能的一致性,随机抽取了3个SPST开关作了测试,测试结果为,在76-85 GHz频率范围内,开关插损小于1.3 d B,不一致性小于0.5 d B;开关隔离度大于20 d B;开关响应时间、导通时间、关断时间小于20 ns;开关尺寸3.2 mm×3.2 mm。结果表明,该开关可作为接收保护开关和发射调制开关应用于W波段收发组件中。展开更多
A monolithic single pole single throw （SPST） switch is developed with GaAs PIN diode technology from IMECAS. A novel small signal model of a GaAs PIN diode is developed for circuit simulation. The switch features an...A monolithic single pole single throw （SPST） switch is developed with GaAs PIN diode technology from IMECAS. A novel small signal model of a GaAs PIN diode is developed for circuit simulation. The switch features an on-state insertion loss of less than 1.6dB and a return loss of greater than 10dB while maintaining an off-state isolation of greater than 23dB from 5.5 to 7. 5GHz. The measured 1dB power gain compression point is about 20dBm.展开更多
基金TEQIP-II funded Silvaco TCADSMDP-II funded Cadence Tool in Department of Electronics and Communication Engineering,NIT Silchar for carrying out the research work
文摘An enhancement mode p-GaN gate AlGaN/GaN HEMT is proposed and a physics based virtual source charge model with Landauer approach for electron transport has been developed using Verilog-A and simulated using Cadence Spectre,in order to predict device characteristics such as threshold voltage,drain current and gate capacitance.The drain current model incorporates important physical effects such as velocity saturation,short channel effects like DIBL（drain induced barrier lowering）,channel length modulation（CLM）,and mobility degradation due to self-heating.The predicted Id–V（ds）,Id–V（gs）,and C–V characteristics show an excellent agreement with the experimental data for both drain current and capacitance which validate the model.The developed model was then utilized to design and simulate a single-pole single-throw（SPST）RF switch.
文摘为了解决W波段接收机保护开关和发射机调制开关芯片问题,基于0.1 mm厚2英寸熔制石英薄膜电路工艺,研制出了应用于W波段PIN二极管单刀单掷开关。为了考察开关性能的一致性,随机抽取了3个SPST开关作了测试,测试结果为,在76-85 GHz频率范围内,开关插损小于1.3 d B,不一致性小于0.5 d B;开关隔离度大于20 d B;开关响应时间、导通时间、关断时间小于20 ns;开关尺寸3.2 mm×3.2 mm。结果表明,该开关可作为接收保护开关和发射调制开关应用于W波段收发组件中。
文摘A monolithic single pole single throw （SPST） switch is developed with GaAs PIN diode technology from IMECAS. A novel small signal model of a GaAs PIN diode is developed for circuit simulation. The switch features an on-state insertion loss of less than 1.6dB and a return loss of greater than 10dB while maintaining an off-state isolation of greater than 23dB from 5.5 to 7. 5GHz. The measured 1dB power gain compression point is about 20dBm.
