用于合成孔径辐射计的集成接收机设计
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摘要
采用0.13μm GaAs pHEMT工艺,提出一种Ka波段低噪声下变频单片式微波集成接收机,可满足合成孔径辐射计应用要求。该设计由4级低噪声放大器模块和由双平衡混频器组成的镜像抑制混频器组成。仿真结果显示,在输入信号频率为29~34GHz时,芯片的变频增益为17~20dB,镜像抑制度超过20dBc,噪声系数为2.6~3dB。
A Ka-band integrated compact down-converter monolithic microwave integrated circuit chip is presented for synthetic aperture radiometer application.This work is designed using an image-reject mixer consisting of double balanced diode ring mixers and a four-stage RF low noise amplifier.The conversion gain of the chip is 17 ~ 20 d B,image rejection above 20 d Bc,and noise figure of 2.6 ~ 3 d B for the radio frequency of 29 ~ 34 GHz.
A Ka-band integrated compact down-converter monolithic microwave integrated circuit chip is presented for synthetic aperture radiometer application.This work is designed using an image-reject mixer consisting of double balanced diode ring mixers and a four-stage RF low noise amplifier.The conversion gain of the chip is 17 ~ 20 d B,image rejection above 20 d Bc,and noise figure of 2.6 ~ 3 d B for the radio frequency of 29 ~ 34 GHz.
引文
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[2]VAUDESCAL O,LEFEBVRE B,COUTURIER A M,et al.A highly integrated MMIC chipset for 28 GHz LMDS Applications[C].Microwave Conference,2000.European.IEEE,2000:1-3.
[3]SINGH P K,BASU S,LIAO K H,et al.Highly integrated Ka-band sub-harmonic image-reject down-converter MMIC[J].Microwave&Wireless Components Letters IEEE,2009,19(5):305-307.
[4]RAO N,PARFITT A,DADELLO A,et al.A low noise Kaband down converter for space applications[C].Microwave Conference,2000.30th European.IEEE,2000:1-4.
[5]苗俊刚,郑成,胡岸勇,等.被动毫米波实时成像技术[J].微波学报,2013,29(Z1):100-112.
[6]陈立福,万国龙.被动毫米波辐射成像系统中的通道误差研究[J].电子测量技术,2008,31(12):45-48.
[7]GUNNARSSON S E,EMRICH A,ZIRATH H,et al.A single-chip 53 GHz radiometer front-end MMIC for geostationary atmospheric measurements[C].Radio and Wireless Symposium.2008:867-870.
[8]LIU T,HAN K,YE Y,et al.A V-band radiometer MMIC for geostationary atmospheric[C].Wireless Symposium.IEEE,2015.
[9]JOHANSEN T K,KROZER V.An In P HBT sub-harmonic mixer for E-band wireless communication[C].Microwave Integrated Circuits Conference(Eu MIC),2010 European.IEEE,2010:198-201.