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

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...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2013-09, Vol.23 (9), p.486-488
Hauptverfasser:	Hurm, V., Weber, R., Tessmann, A., Massler, H., Leuther, A., Kuri, M., Riessle, M., Stulz, H. P., Zink, M., Schlechtweg, M., Ambacher, O., Narhi, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplifiers Applied sciences Circuit properties Design. Technologies. Operation analysis. Testing Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Gain Gallium arsenide Integrated circuits Low-noise amplifier (LNA) metamorphic HEMT (mHEMT) mHEMTs Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits millimeter-wave integrated circuit (MMIC) MMICs Noise noise figure packaging Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Temperature measurement waveguide transition Waveguide transitions WR-03 waveguide band
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Beschreibung
Zusammenfassung:	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 μm 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.
ISSN:	1531-1309 1558-1764
DOI:	10.1109/LMWC.2013.2272610