A 243 GHz LNA Module Based on mHEMT MMICs With Integrated Waveguide Transitions

被引:22
作者
Hurm, V. [1 ]
Weber, R. [1 ]
Tessmann, A. [1 ]
Massler, H. [1 ]
Leuther, A. [1 ]
Kuri, M. [1 ]
Riessle, M. [1 ]
Stulz, H. P. [1 ]
Zink, M. [1 ]
Schlechtweg, M. [1 ]
Ambacher, O. [1 ]
Narhi, T. [2 ]
机构
[1] Fraunhofer Inst Appl Solid State Phys IAF, D-79108 Freiburg, Germany
[2] European Space Agcy ESA ESTEC, NL-2200 AG Noordwijk, Netherlands
关键词
Low-noise amplifier (LNA); metamorphic HEMT (mHEMT); millimeter-wave integrated circuit (MMIC); noise figure; packaging; waveguide transition; WR-03 waveguide band;
D O I
10.1109/LMWC.2013.2272610
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
For use in a millimeter-wave direct detection radiometer for earth remote sensing, we have developed a low-noise amplifier (LNA) module with a small-signal gain of 19.5 dB at 243 GHz and a 3 dB bandwidth of 40 GHz. The implemented three-stage LNA MMIC has been manufactured using a 50 nm gate length metamorphic HEMT (mHEMT) technology on 50 m thick GaAs substrates. Each of the two on-chip integrated E-plane probe waveguide transitions offers a transmission loss of only 0.5 dB at 243 GHz including a 7.5 mm long WR-3.4 waveguide. Due to the low-loss packaging, the LNA module achieves a low noise figure of only 6.0 dB at room temperature.
引用
收藏
页码:486 / 488
页数:3
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