2篇
您的检索式：作者名="Zhang,Conghai"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Design of 85–105GHz Wideband Traveling Wave PIN Diode Switches and Attenuators with Radial Stubs显示文摘Wideband traveling wave PIN Diode switches and attenuators are proposed. The switches and attenuators consist of three shunt PIN diodes, six radial stubs, bias circuit and DC return circuit. Wide bandwidth is achieved with six different radial stubs as reflective load of the diodes. The stubs work as short circuit to the diodes at different frequency points for broad bandwidth. For the Single pole single throw(SPST) switch, the lowest measured Insertion loss(IL) is 0.75 dB and lower than 2.0dB in 85–105GHz, and its isolation is better than 21.3dB.As a Voltage-controlled variable attenuator(VCA), typical attenuation range is 23 dB and attenuation fluctuation is lower than 5dB in 85–105GHz. | YAO Changfei ZHOU Ming LUO Yunsheng ZHANG Junzhi WEI Xiang XU Conghai | 2017 | Chinese Journal of Electronics2017，26，1： | 3 |
| 2 | Asymmetric Synthesis of All Four Isomers of an Unusual Heterocycle-Containing Amino Acid : 2-Amino-3-furan-2-yl-pentanoic Acid显示文摘新奇分叉的不平常的氨基酸的所有四异构体与高 stereoselectivity 被设计并且综合(>90% de ) 并且在由 4 的使用(R/S ) 的 33%44% 全面收益是的 -5,5-dimethyl-4-phenyl-oxazolidin-2-one 经由不对称的 1,4-Michael 增加,直接或间接的 azidation,水解作用和加氢辅助的 chiral 反应。 | Nie,Lei Yang,Rui Zhang,Conghai Yin,Haichuan Yan,Shengjiao Lin,Jun | 2012 | Chinese Journal of Chemistry2012，30，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员